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1 Commits

Author SHA1 Message Date
Brian Clozel 5024bb7227 Release v6.2.0 2024-11-14 16:43:48 +01:00
10021 changed files with 93742 additions and 142286 deletions
+1 -1
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@@ -19,7 +19,7 @@ inputs:
java-version:
description: 'Java version to compile and test with'
required: false
default: '25'
default: '17'
publish:
description: 'Whether to publish artifacts ready for deployment to Artifactory'
required: false
@@ -15,7 +15,7 @@ runs:
using: composite
steps:
- name: Generate Changelog
uses: spring-io/github-changelog-generator@86958813a62af8fb223b3fd3b5152035504bcb83 #v0.0.12
uses: spring-io/github-changelog-generator@185319ad7eaa75b0e8e72e4b6db19c8b2cb8c4c1 #v0.0.11
with:
config-file: .github/actions/create-github-release/changelog-generator.yml
milestone: ${{ inputs.milestone }}
@@ -19,7 +19,7 @@ inputs:
java-version:
description: 'Java version to use for the build'
required: false
default: '25'
default: '17'
runs:
using: composite
steps:
@@ -30,13 +30,11 @@ runs:
java-version: |
${{ inputs.java-early-access == 'true' && format('{0}-ea', inputs.java-version) || inputs.java-version }}
${{ inputs.java-toolchain == 'true' && '17' || '' }}
25
- name: Set Up Gradle
uses: gradle/actions/setup-gradle@ac638b010cf58a27ee6c972d7336334ccaf61c96 # v4.4.1
uses: gradle/actions/setup-gradle@d156388eb19639ec20ade50009f3d199ce1e2808 # v4.1.0
with:
cache-read-only: false
develocity-access-key: ${{ inputs.develocity-access-key }}
develocity-token-expiry: 4
- name: Configure Gradle Properties
shell: bash
run: |
@@ -1,15 +1,18 @@
name: Sync to Maven Central
description: 'Syncs a release to Maven Central and waits for it to be available for use'
inputs:
central-token-password:
description: 'Password for authentication with central.sonatype.com'
required: true
central-token-username:
description: 'Username for authentication with central.sonatype.com'
required: true
jfrog-cli-config-token:
description: 'Config token for the JFrog CLI'
required: true
ossrh-s01-staging-profile:
description: 'Staging profile to use when syncing to Central'
required: true
ossrh-s01-token-password:
description: 'Password for authentication with s01.oss.sonatype.org'
required: true
ossrh-s01-token-username:
description: 'Username for authentication with s01.oss.sonatype.org'
required: true
spring-framework-version:
description: 'Version of Spring Framework that is being synced to Central'
required: true
@@ -17,17 +20,23 @@ runs:
using: composite
steps:
- name: Set Up JFrog CLI
uses: jfrog/setup-jfrog-cli@f748a0599171a192a2668afee8d0497f7c1069df # v4.5.6
uses: jfrog/setup-jfrog-cli@9fe0f98bd45b19e6e931d457f4e98f8f84461fb5 # v4.4.1
env:
JF_ENV_SPRING: ${{ inputs.jfrog-cli-config-token }}
- name: Download Release Artifacts
shell: bash
run: jf rt download --spec ${{ format('{0}/artifacts.spec', github.action_path) }} --spec-vars 'buildName=${{ format('spring-framework-{0}', inputs.spring-framework-version) }};buildNumber=${{ github.run_number }}'
- name: Sync
uses: spring-io/central-publish-action@0cdd90d12e6876341e82860d951e1bcddc1e51b6 # v0.2.0
uses: spring-io/nexus-sync-action@42477a2230a2f694f9eaa4643fa9e76b99b7ab84 # v0.0.1
with:
token: ${{ inputs.central-token-password }}
token-name: ${{ inputs.central-token-username }}
close: true
create: true
generate-checksums: true
password: ${{ inputs.ossrh-s01-token-password }}
release: true
staging-profile-name: ${{ inputs.ossrh-s01-staging-profile }}
upload: true
username: ${{ inputs.ossrh-s01-token-username }}
- name: Await
uses: ./.github/actions/await-http-resource
with:
-3
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@@ -1,3 +0,0 @@
require:
members: false
@@ -21,13 +21,13 @@ jobs:
develocity-access-key: ${{ secrets.DEVELOCITY_ACCESS_KEY }}
publish: true
- name: Deploy
uses: spring-io/artifactory-deploy-action@dc1913008c0599f0c4b1fdafb6ff3c502b3565ea # v0.0.2
uses: spring-io/artifactory-deploy-action@26bbe925a75f4f863e1e529e85be2d0093cac116 # v0.0.1
with:
artifact-properties: |
/**/framework-api-*.zip::zip.name=spring-framework,zip.deployed=false
/**/framework-api-*-docs.zip::zip.type=docs
/**/framework-api-*-schema.zip::zip.type=schema
build-name: 'spring-framework-7.0.x'
build-name: 'spring-framework-6.2.x'
folder: 'deployment-repository'
password: ${{ secrets.ARTIFACTORY_PASSWORD }}
repository: 'libs-snapshot-local'
+14 -3
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@@ -9,11 +9,22 @@ jobs:
runs-on: ubuntu-latest
timeout-minutes: 60
steps:
- name: Check Out Code
- name: Set Up JDK 17
uses: actions/setup-java@v4
with:
distribution: 'liberica'
java-version: '17'
- name: Check Out
uses: actions/checkout@v4
- name: Validate Gradle Wrapper
uses: gradle/actions/wrapper-validation@d156388eb19639ec20ade50009f3d199ce1e2808 # v4.1.0
- name: Set Up Gradle
uses: gradle/actions/setup-gradle@d156388eb19639ec20ade50009f3d199ce1e2808 # v4.1.0
- name: Build
id: build
uses: ./.github/actions/build
env:
CI: 'true'
GRADLE_ENTERPRISE_URL: 'https://ge.spring.io'
run: ./gradlew -Dorg.gradle.internal.launcher.welcomeMessageEnabled=false --no-daemon --no-parallel --continue build
- name: Print JVM Thread Dumps When Cancelled
if: cancelled()
uses: ./.github/actions/print-jvm-thread-dumps
+1 -1
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@@ -20,7 +20,7 @@ jobs:
toolchain: false
- version: 21
toolchain: true
- version: 25
- version: 23
toolchain: true
exclude:
- os:
+10 -26
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@@ -2,14 +2,14 @@ name: Release Milestone
on:
push:
tags:
- v7.0.0-M[1-9]
- v7.0.0-RC[1-9]
- v6.2.0-M[1-9]
- v6.2.0-RC[1-9]
concurrency:
group: ${{ github.workflow }}-${{ github.ref }}
jobs:
build-and-stage-release:
name: Build and Stage Release
if: ${{ github.repository == 'spring-projects/spring-framework' }}
name: Build and Stage Release
runs-on: ubuntu-latest
steps:
- name: Check Out Code
@@ -18,7 +18,7 @@ jobs:
id: build-and-publish
uses: ./.github/actions/build
with:
develocity-access-key: ${{ secrets.DEVELOCITY_ACCESS_KEY }}
develocity-access-key: ${{ secrets.GRADLE_ENTERPRISE_SECRET_ACCESS_KEY }}
publish: true
- name: Stage Release
uses: spring-io/artifactory-deploy-action@26bbe925a75f4f863e1e529e85be2d0093cac116 # v0.0.1
@@ -41,39 +41,23 @@ jobs:
name: Verify
needs: build-and-stage-release
uses: ./.github/workflows/verify.yml
with:
staging: true
version: ${{ needs.build-and-stage-release.outputs.version }}
secrets:
google-chat-webhook-url: ${{ secrets.GOOGLE_CHAT_WEBHOOK_URL }}
repository-password: ${{ secrets.ARTIFACTORY_PASSWORD }}
repository-username: ${{ secrets.ARTIFACTORY_USERNAME }}
token: ${{ secrets.GH_ACTIONS_REPO_TOKEN }}
with:
staging: true
version: ${{ needs.build-and-stage-release.outputs.version }}
sync-to-maven-central:
name: Sync to Maven Central
promote-release:
name: Promote Release
needs:
- build-and-stage-release
- verify
runs-on: ubuntu-latest
steps:
- name: Check Out Code
uses: actions/checkout@b4ffde65f46336ab88eb53be808477a3936bae11 # v4.1.1
- name: Sync to Maven Central
uses: ./.github/actions/sync-to-maven-central
with:
central-token-password: ${{ secrets.CENTRAL_TOKEN_PASSWORD }}
central-token-username: ${{ secrets.CENTRAL_TOKEN_USERNAME }}
jfrog-cli-config-token: ${{ secrets.JF_ARTIFACTORY_SPRING }}
spring-framework-version: ${{ needs.build-and-stage-release.outputs.version }}
promote-release:
name: Promote Release
needs:
- build-and-stage-release
- sync-to-maven-central
runs-on: ubuntu-latest
steps:
- name: Set up JFrog CLI
uses: jfrog/setup-jfrog-cli@dff217c085c17666e8849ebdbf29c8fe5e3995e6 # v4.5.2
uses: jfrog/setup-jfrog-cli@9fe0f98bd45b19e6e931d457f4e98f8f84461fb5 # v4.4.1
env:
JF_ENV_SPRING: ${{ secrets.JF_ARTIFACTORY_SPRING }}
- name: Promote build
+6 -5
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@@ -2,7 +2,7 @@ name: Release
on:
push:
tags:
- v7.0.[0-9]+
- v6.2.[0-9]+
concurrency:
group: ${{ github.workflow }}-${{ github.ref }}
jobs:
@@ -20,7 +20,7 @@ jobs:
develocity-access-key: ${{ secrets.DEVELOCITY_ACCESS_KEY }}
publish: true
- name: Stage Release
uses: spring-io/artifactory-deploy-action@dc1913008c0599f0c4b1fdafb6ff3c502b3565ea # v0.0.2
uses: spring-io/artifactory-deploy-action@26bbe925a75f4f863e1e529e85be2d0093cac116 # v0.0.1
with:
artifact-properties: |
/**/framework-api-*.zip::zip.name=spring-framework,zip.deployed=false
@@ -60,9 +60,10 @@ jobs:
- name: Sync to Maven Central
uses: ./.github/actions/sync-to-maven-central
with:
central-token-password: ${{ secrets.CENTRAL_TOKEN_PASSWORD }}
central-token-username: ${{ secrets.CENTRAL_TOKEN_USERNAME }}
jfrog-cli-config-token: ${{ secrets.JF_ARTIFACTORY_SPRING }}
ossrh-s01-staging-profile: ${{ secrets.OSSRH_S01_STAGING_PROFILE }}
ossrh-s01-token-password: ${{ secrets.OSSRH_S01_TOKEN_PASSWORD }}
ossrh-s01-token-username: ${{ secrets.OSSRH_S01_TOKEN_USERNAME }}
spring-framework-version: ${{ needs.build-and-stage-release.outputs.version }}
promote-release:
name: Promote Release
@@ -72,7 +73,7 @@ jobs:
runs-on: ubuntu-latest
steps:
- name: Set up JFrog CLI
uses: jfrog/setup-jfrog-cli@dff217c085c17666e8849ebdbf29c8fe5e3995e6 # v4.5.2
uses: jfrog/setup-jfrog-cli@9fe0f98bd45b19e6e931d457f4e98f8f84461fb5 # v4.4.1
env:
JF_ENV_SPRING: ${{ secrets.JF_ARTIFACTORY_SPRING }}
- name: Promote build
@@ -12,12 +12,11 @@ permissions:
jobs:
update-antora-ui-spring:
name: Update on Supported Branches
if: ${{ github.repository == 'spring-projects/spring-framework' }}
runs-on: ubuntu-latest
name: Update on Supported Branches
strategy:
matrix:
branch: [ '6.2.x', 'main' ]
branch: [ '6.1.x' ]
steps:
- uses: spring-io/spring-doc-actions/update-antora-spring-ui@5a57bcc6a0da2a1474136cf29571b277850432bc
name: Update
@@ -26,9 +25,8 @@ jobs:
token: ${{ secrets.GITHUB_TOKEN }}
antora-file-path: 'framework-docs/antora-playbook.yml'
update-antora-ui-spring-docs-build:
name: Update on docs-build
if: ${{ github.repository == 'spring-projects/spring-framework' }}
runs-on: ubuntu-latest
name: Update on docs-build
steps:
- uses: spring-io/spring-doc-actions/update-antora-spring-ui@5a57bcc6a0da2a1474136cf29571b277850432bc
name: Update
+1 -1
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@@ -46,7 +46,7 @@ jobs:
distribution: 'liberica'
java-version: 17
- name: Set Up Gradle
uses: gradle/actions/setup-gradle@ac638b010cf58a27ee6c972d7336334ccaf61c96 # v4.4.1
uses: gradle/actions/setup-gradle@d156388eb19639ec20ade50009f3d199ce1e2808 # v4.1.0
with:
cache-read-only: false
- name: Configure Gradle Properties
+2 -4
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@@ -38,12 +38,11 @@ bin
.springBeans
spring-*/src/main/java/META-INF/MANIFEST.MF
# IntelliJ IDEA artifacts and output dirs
# IDEA artifacts and output dirs
*.iml
*.ipr
*.iws
.idea/*
!.idea/icon.svg
.idea
out
test-output
atlassian-ide-plugin.xml
@@ -54,4 +53,3 @@ atlassian-ide-plugin.xml
cached-antora-playbook.yml
node_modules
/.kotlin/
-52
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@@ -1,52 +0,0 @@
<?xml version="1.0" encoding="utf-8"?>
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Before

Width:  |  Height:  |  Size: 4.8 KiB

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@@ -1,3 +1,3 @@
# Enable auto-env through the sdkman_auto_env config
# Add key=value pairs of SDKs to use below
java=25-librca
java=17.0.12-librca
+6 -7
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@@ -16,7 +16,7 @@ First off, thank you for taking the time to contribute! :+1: :tada:
### Code of Conduct
This project is governed by the [Spring Code of Conduct](https://github.com/spring-projects/spring-framework#coc-ov-file).
This project is governed by the [Spring Code of Conduct](CODE_OF_CONDUCT.adoc).
By participating you are expected to uphold this code.
Please report unacceptable behavior to spring-code-of-conduct@spring.io.
@@ -65,6 +65,10 @@ follow-up reports will need to be created as new issues with a fresh description
#### Submit a Pull Request
1. If you have not previously done so, please sign the
[Contributor License Agreement](https://cla.spring.io/sign/spring). You will be reminded
automatically when you submit the PR.
1. Should you create an issue first? No, just create the pull request and use the
description to provide context and motivation, as you would for an issue. If you want
to start a discussion first or have already created an issue, once a pull request is
@@ -81,11 +85,6 @@ multiple edits or corrections of the same logical change. See
[Rewriting History section of Pro Git](https://git-scm.com/book/en/Git-Tools-Rewriting-History)
for an overview of streamlining the commit history.
1. All commits must include a _Signed-off-by_ trailer at the end of each commit message
to indicate that the contributor agrees to the Developer Certificate of Origin.
For additional details, please refer to the blog post
[Hello DCO, Goodbye CLA: Simplifying Contributions to Spring](https://spring.io/blog/2025/01/06/hello-dco-goodbye-cla-simplifying-contributions-to-spring).
1. Format commit messages using 55 characters for the subject line, 72 characters per line
for the description, followed by the issue fixed, for example, `Closes gh-22276`. See the
[Commit Guidelines section of Pro Git](https://git-scm.com/book/en/Distributed-Git-Contributing-to-a-Project#Commit-Guidelines)
@@ -120,7 +119,7 @@ source code into your IDE.
The wiki pages
[Code Style](https://github.com/spring-projects/spring-framework/wiki/Code-Style) and
[IntelliJ IDEA Editor Settings](https://github.com/spring-projects/spring-framework/wiki/IntelliJ-IDEA-Editor-Settings)
define the source file coding standards we use along with some IntelliJ editor settings we customize.
define the source file coding standards we use along with some IDEA editor settings we customize.
### Reference Docs
+1 -1
View File
@@ -27,7 +27,7 @@ See the [Build from Source](https://github.com/spring-projects/spring-framework/
## Continuous Integration Builds
CI builds are defined with [GitHub Actions workflows](.github/workflows).
Information regarding CI builds can be found in the [Spring Framework Concourse pipeline](ci/README.adoc) documentation.
## Stay in Touch
+44 -13
View File
@@ -1,12 +1,15 @@
plugins {
id 'io.freefair.aspectj' version '8.13.1' apply false
id 'io.freefair.aspectj' version '8.4' apply false
// kotlinVersion is managed in gradle.properties
id 'org.jetbrains.kotlin.plugin.serialization' version "${kotlinVersion}" apply false
id 'org.jetbrains.dokka'
id 'org.jetbrains.dokka' version '1.9.20'
id 'com.github.ben-manes.versions' version '0.51.0'
id 'com.github.bjornvester.xjc' version '1.8.2' apply false
id 'com.gradleup.shadow' version "9.2.2" apply false
id 'de.undercouch.download' version '5.4.0'
id 'io.github.goooler.shadow' version '8.1.8' apply false
id 'me.champeau.jmh' version '0.7.2' apply false
id 'io.spring.nullability' version '0.0.8' apply false
id 'me.champeau.mrjar' version '0.1.1'
id "net.ltgt.errorprone" version "3.1.0" apply false
}
ext {
@@ -21,11 +24,18 @@ configure(allprojects) { project ->
group = "org.springframework"
repositories {
mavenCentral()
maven {
url "https://repo.spring.io/milestone"
content {
// Netty 5 optional support
includeGroup 'io.projectreactor.netty'
}
}
if (version.contains('-')) {
maven { url = "https://repo.spring.io/milestone" }
maven { url "https://repo.spring.io/milestone" }
}
if (version.endsWith('-SNAPSHOT')) {
maven { url = "https://repo.spring.io/snapshot" }
maven { url "https://repo.spring.io/snapshot" }
}
}
configurations.all {
@@ -54,31 +64,52 @@ configure([rootProject] + javaProjects) { project ->
apply plugin: "java"
apply plugin: "java-test-fixtures"
apply plugin: 'org.springframework.build.conventions'
apply from: "${rootDir}/gradle/toolchains.gradle"
apply from: "${rootDir}/gradle/ide.gradle"
dependencies {
testImplementation("org.junit.jupiter:junit-jupiter")
testImplementation("org.junit.platform:junit-platform-suite")
testImplementation("org.junit.jupiter:junit-jupiter-api")
testImplementation("org.junit.jupiter:junit-jupiter-params")
testImplementation("org.junit.platform:junit-platform-suite-api")
testImplementation("org.mockito:mockito-core")
testImplementation("org.mockito:mockito-junit-jupiter")
testImplementation("io.mockk:mockk")
testImplementation("org.assertj:assertj-core")
// Pull in the latest JUnit 5 Launcher API to ensure proper support in IDEs.
testRuntimeOnly("org.junit.jupiter:junit-jupiter-engine")
testRuntimeOnly("org.junit.platform:junit-platform-launcher")
testRuntimeOnly("org.junit.platform:junit-platform-suite-engine")
testRuntimeOnly("org.apache.logging.log4j:log4j-core")
testRuntimeOnly("org.apache.logging.log4j:log4j-jul")
testRuntimeOnly("org.apache.logging.log4j:log4j-slf4j2-impl")
// JSR-305 only used for non-required meta-annotations
compileOnly("com.google.code.findbugs:jsr305")
testCompileOnly("com.google.code.findbugs:jsr305")
}
ext.javadocLinks = [
"https://docs.oracle.com/en/java/javase/17/docs/api/",
//"https://jakarta.ee/specifications/platform/11/apidocs/",
"https://docs.hibernate.org/orm/5.6/javadocs/",
"https://jakarta.ee/specifications/platform/9/apidocs/",
"https://docs.jboss.org/hibernate/orm/5.6/javadocs/",
"https://eclipse.dev/aspectj/doc/released/aspectj5rt-api",
"https://www.quartz-scheduler.org/api/2.3.0/",
"https://hc.apache.org/httpcomponents-client-5.5.x/current/httpclient5/apidocs/",
"https://fasterxml.github.io/jackson-core/javadoc/2.14/",
"https://fasterxml.github.io/jackson-databind/javadoc/2.14/",
"https://fasterxml.github.io/jackson-dataformat-xml/javadoc/2.14/",
"https://hc.apache.org/httpcomponents-client-5.4.x/current/httpclient5/apidocs/",
"https://projectreactor.io/docs/test/release/api/",
"https://junit.org/junit4/javadoc/4.13.2/",
"https://docs.junit.org/6.0.1/api/",
// TODO Uncomment link to JUnit 5 docs once we execute Gradle with Java 18+.
// See https://github.com/spring-projects/spring-framework/issues/27497
//
// "https://junit.org/junit5/docs/5.11.3/api/",
"https://www.reactive-streams.org/reactive-streams-1.0.3-javadoc/",
//"https://javadoc.io/static/io.rsocket/rsocket-core/1.1.1/",
"https://r2dbc.io/spec/1.0.0.RELEASE/api/",
"https://jspecify.dev/docs/api/"
// Previously there could be a split-package issue between JSR250 and JSR305 javax.annotation packages,
// but since 6.0 JSR 250 annotations such as @Resource and @PostConstruct have been replaced by their
// JakartaEE equivalents in the jakarta.annotation package.
//"https://www.javadoc.io/doc/com.google.code.findbugs/jsr305/3.0.2/"
] as String[]
}
+1 -31
View File
@@ -9,18 +9,7 @@ The `org.springframework.build.conventions` plugin applies all conventions to th
* Configuring the Java compiler, see `JavaConventions`
* Configuring the Kotlin compiler, see `KotlinConventions`
* Configuring testing in the build with `TestConventions`
* Configuring the ArchUnit rules for the project, see `org.springframework.build.architecture.ArchitectureRules`
This plugin also provides a DSL extension to optionally enable Java preview features for
compiling and testing sources in a module. This can be applied with the following in a
module build file:
```groovy
springFramework {
enableJavaPreviewFeatures = true
}
```
* Configuring testing in the build with `TestConventions`
## Build Plugins
@@ -33,25 +22,6 @@ but doesn't affect the classpath of dependent projects.
This plugin does not provide a `provided` configuration, as the native `compileOnly` and `testCompileOnly`
configurations are preferred.
### MultiRelease Jar
The `org.springframework.build.multiReleaseJar` plugin configures the project with MultiRelease JAR support.
It creates a new SourceSet and dedicated tasks for each Java variant considered.
This can be configured with the DSL, by setting a list of Java variants to configure:
```groovy
plugins {
id 'org.springframework.build.multiReleaseJar'
}
multiRelease {
releaseVersions 21, 24
}
```
Note, Java classes will be compiled with the toolchain pre-configured by the project, assuming that its
Java language version is equal or higher than all variants we consider. Each compilation task will only
set the "-release" compilation option accordingly to produce the expected bytecode version.
### RuntimeHints Java Agent
+2 -22
View File
@@ -20,24 +20,14 @@ ext {
dependencies {
checkstyle "io.spring.javaformat:spring-javaformat-checkstyle:${javaFormatVersion}"
implementation "org.jetbrains.kotlin:kotlin-gradle-plugin:${kotlinVersion}"
implementation "org.jetbrains.dokka:dokka-gradle-plugin:2.1.0"
implementation "com.tngtech.archunit:archunit:1.4.1"
implementation "org.gradle:test-retry-gradle-plugin:1.6.2"
implementation "org.jetbrains.kotlin:kotlin-compiler-embeddable:${kotlinVersion}"
implementation "org.gradle:test-retry-gradle-plugin:1.5.6"
implementation "io.spring.javaformat:spring-javaformat-gradle-plugin:${javaFormatVersion}"
implementation "io.spring.nohttp:nohttp-gradle:0.0.11"
testImplementation("org.assertj:assertj-core:${assertjVersion}")
testImplementation(platform("org.junit:junit-bom:${junitVersion}"))
testImplementation("org.junit.jupiter:junit-jupiter")
testRuntimeOnly("org.junit.platform:junit-platform-launcher")
}
gradlePlugin {
plugins {
architecturePlugin {
id = "org.springframework.architecture"
implementationClass = "org.springframework.build.architecture.ArchitecturePlugin"
}
conventionsPlugin {
id = "org.springframework.build.conventions"
implementationClass = "org.springframework.build.ConventionsPlugin"
@@ -46,10 +36,6 @@ gradlePlugin {
id = "org.springframework.build.localdev"
implementationClass = "org.springframework.build.dev.LocalDevelopmentPlugin"
}
multiReleasePlugin {
id = "org.springframework.build.multiReleaseJar"
implementationClass = "org.springframework.build.multirelease.MultiReleaseJarPlugin"
}
optionalDependenciesPlugin {
id = "org.springframework.build.optional-dependencies"
implementationClass = "org.springframework.build.optional.OptionalDependenciesPlugin"
@@ -60,9 +46,3 @@ gradlePlugin {
}
}
}
test {
useJUnitPlatform()
}
jar.dependsOn check
+8 -7
View File
@@ -1,26 +1,27 @@
<?xml version="1.0"?>
<!DOCTYPE module PUBLIC "-//Checkstyle//DTD Checkstyle Configuration 1.3//EN" "https://checkstyle.org/dtds/configuration_1_3.dtd">
<module name="Checker">
<module name="com.puppycrawl.tools.checkstyle.Checker">
<!-- Root Checks -->
<module name="io.spring.javaformat.checkstyle.check.SpringHeaderCheck">
<property name="fileExtensions" value="java"/>
<property name="headerType" value="apache2"/>
<property name="headerCopyrightPattern" value="20\d\d-present"/>
<property name="headerCopyrightPattern" value="20\d\d-20\d\d"/>
<property name="packageInfoHeaderType" value="none"/>
</module>
<module name="com.puppycrawl.tools.checkstyle.checks.NewlineAtEndOfFileCheck"/>
<!-- TreeWalker Checks -->
<module name="TreeWalker">
<module name="com.puppycrawl.tools.checkstyle.TreeWalker">
<!-- Imports -->
<module name="AvoidStarImport"/>
<module name="UnusedImports"/>
<module name="RedundantImport"/>
<module name="com.puppycrawl.tools.checkstyle.checks.imports.UnusedImportsCheck">
<property name="processJavadoc" value="true"/>
</module>
<!-- Modifiers -->
<module name="com.puppycrawl.tools.checkstyle.checks.modifier.ModifierOrderCheck"/>
</module>
</module>
</module>
+1 -3
View File
@@ -1,4 +1,2 @@
org.gradle.caching=true
assertjVersion=3.27.3
javaFormatVersion=0.0.43
junitVersion=5.12.2
javaFormatVersion=0.0.42
@@ -1,5 +1,5 @@
/*
* Copyright 2002-present the original author or authors.
* Copyright 2002-2024 the original author or authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
@@ -50,7 +50,7 @@ public class CheckstyleConventions {
project.getPlugins().apply(CheckstylePlugin.class);
project.getTasks().withType(Checkstyle.class).forEach(checkstyle -> checkstyle.getMaxHeapSize().set("1g"));
CheckstyleExtension checkstyle = project.getExtensions().getByType(CheckstyleExtension.class);
checkstyle.setToolVersion("12.2.0");
checkstyle.setToolVersion("10.20.1");
checkstyle.getConfigDirectory().set(project.getRootProject().file("src/checkstyle"));
String version = SpringJavaFormatPlugin.class.getPackage().getImplementationVersion();
DependencySet checkstyleDependencies = project.getConfigurations().getByName("checkstyle").getDependencies();
@@ -63,8 +63,8 @@ public class CheckstyleConventions {
project.getPlugins().apply(NoHttpPlugin.class);
NoHttpExtension noHttp = project.getExtensions().getByType(NoHttpExtension.class);
noHttp.setAllowlistFile(project.file("src/nohttp/allowlist.lines"));
noHttp.getSource().exclude("**/test-output/**", "**/.settings/**", "**/.classpath",
"**/.project", "**/.gradle/**", "**/node_modules/**", "**/spring-jcl/**", "buildSrc/build/**");
noHttp.getSource().exclude("**/test-output/**", "**/.settings/**",
"**/.classpath", "**/.project", "**/.gradle/**", "**/node_modules/**");
List<String> buildFolders = List.of("bin", "build", "out");
project.allprojects(subproject -> {
Path rootPath = project.getRootDir().toPath();
@@ -1,5 +1,5 @@
/*
* Copyright 2002-present the original author or authors.
* Copyright 2002-2023 the original author or authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
@@ -21,15 +21,12 @@ import org.gradle.api.Project;
import org.gradle.api.plugins.JavaBasePlugin;
import org.jetbrains.kotlin.gradle.plugin.KotlinBasePlugin;
import org.springframework.build.architecture.ArchitecturePlugin;
/**
* Plugin to apply conventions to projects that are part of Spring Framework's build.
* Conventions are applied in response to various plugins being applied.
*
* <p>When the {@link JavaBasePlugin} is applied, the conventions in {@link CheckstyleConventions},
* {@link TestConventions} and {@link JavaConventions} are applied.
* The {@link ArchitecturePlugin} plugin is also applied.
* When the {@link KotlinBasePlugin} is applied, the conventions in {@link KotlinConventions}
* are applied.
*
@@ -39,8 +36,6 @@ public class ConventionsPlugin implements Plugin<Project> {
@Override
public void apply(Project project) {
project.getExtensions().create("springFramework", SpringFrameworkExtension.class);
new ArchitecturePlugin().apply(project);
new CheckstyleConventions().apply(project);
new JavaConventions().apply(project);
new KotlinConventions().apply(project);
@@ -1,5 +1,5 @@
/*
* Copyright 2002-present the original author or authors.
* Copyright 2002-2023 the original author or authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
@@ -17,6 +17,7 @@
package org.springframework.build;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;
import org.gradle.api.Plugin;
@@ -26,6 +27,7 @@ import org.gradle.api.plugins.JavaPlugin;
import org.gradle.api.plugins.JavaPluginExtension;
import org.gradle.api.tasks.compile.JavaCompile;
import org.gradle.jvm.toolchain.JavaLanguageVersion;
import org.gradle.jvm.toolchain.JvmVendorSpec;
/**
* {@link Plugin} that applies conventions for compiling Java sources in Spring Framework.
@@ -40,21 +42,8 @@ public class JavaConventions {
private static final List<String> TEST_COMPILER_ARGS;
/**
* The Java version we should use as the JVM baseline for building the project.
* <p>NOTE: If you update this value, you should also update the value used in
* the {@code javadoc} task in {@code framework-api.gradle}.
*/
private static final JavaLanguageVersion DEFAULT_LANGUAGE_VERSION = JavaLanguageVersion.of(25);
/**
* The Java version we should use as the baseline for the compiled bytecode
* (the "-release" compiler argument).
*/
private static final JavaLanguageVersion DEFAULT_RELEASE_VERSION = JavaLanguageVersion.of(17);
static {
List<String> commonCompilerArgs = List.of(
List<String> commonCompilerArgs = Arrays.asList(
"-Xlint:serial", "-Xlint:cast", "-Xlint:classfile", "-Xlint:dep-ann",
"-Xlint:divzero", "-Xlint:empty", "-Xlint:finally", "-Xlint:overrides",
"-Xlint:path", "-Xlint:processing", "-Xlint:static", "-Xlint:try", "-Xlint:-options",
@@ -62,74 +51,43 @@ public class JavaConventions {
);
COMPILER_ARGS = new ArrayList<>();
COMPILER_ARGS.addAll(commonCompilerArgs);
COMPILER_ARGS.addAll(List.of(
COMPILER_ARGS.addAll(Arrays.asList(
"-Xlint:varargs", "-Xlint:fallthrough", "-Xlint:rawtypes", "-Xlint:deprecation",
"-Xlint:unchecked", "-Werror"
));
TEST_COMPILER_ARGS = new ArrayList<>();
TEST_COMPILER_ARGS.addAll(commonCompilerArgs);
TEST_COMPILER_ARGS.addAll(List.of("-Xlint:-varargs", "-Xlint:-fallthrough", "-Xlint:-rawtypes",
TEST_COMPILER_ARGS.addAll(Arrays.asList("-Xlint:-varargs", "-Xlint:-fallthrough", "-Xlint:-rawtypes",
"-Xlint:-deprecation", "-Xlint:-unchecked"));
}
public void apply(Project project) {
project.getPlugins().withType(JavaBasePlugin.class, javaPlugin -> {
applyToolchainConventions(project);
applyJavaCompileConventions(project);
});
project.getPlugins().withType(JavaBasePlugin.class, javaPlugin -> applyJavaCompileConventions(project));
}
/**
* Configure the Toolchain support for the project.
* @param project the current project
*/
private static void applyToolchainConventions(Project project) {
project.getExtensions().getByType(JavaPluginExtension.class).toolchain(toolchain -> {
toolchain.getLanguageVersion().set(DEFAULT_LANGUAGE_VERSION);
});
}
/**
* Apply the common Java compiler options for main sources, test fixture sources, and
* Applies the common Java compiler options for main sources, test fixture sources, and
* test sources.
* @param project the current project
*/
private void applyJavaCompileConventions(Project project) {
project.afterEvaluate(p -> {
p.getTasks().withType(JavaCompile.class)
.matching(compileTask -> compileTask.getName().startsWith(JavaPlugin.COMPILE_JAVA_TASK_NAME))
.forEach(compileTask -> {
compileTask.getOptions().setCompilerArgs(COMPILER_ARGS);
compileTask.getOptions().setEncoding("UTF-8");
setJavaRelease(compileTask);
});
p.getTasks().withType(JavaCompile.class)
.matching(compileTask -> compileTask.getName().startsWith(JavaPlugin.COMPILE_TEST_JAVA_TASK_NAME)
|| compileTask.getName().equals("compileTestFixturesJava"))
.forEach(compileTask -> {
compileTask.getOptions().setCompilerArgs(TEST_COMPILER_ARGS);
compileTask.getOptions().setEncoding("UTF-8");
setJavaRelease(compileTask);
});
project.getExtensions().getByType(JavaPluginExtension.class).toolchain(toolchain -> {
toolchain.getVendor().set(JvmVendorSpec.BELLSOFT);
toolchain.getLanguageVersion().set(JavaLanguageVersion.of(17));
});
}
/**
* We should pick the {@link #DEFAULT_RELEASE_VERSION} for all compiled classes,
* unless the current task is compiling multi-release JAR code with a higher version.
*/
private void setJavaRelease(JavaCompile task) {
int defaultVersion = DEFAULT_RELEASE_VERSION.asInt();
int releaseVersion = defaultVersion;
int compilerVersion = task.getJavaCompiler().get().getMetadata().getLanguageVersion().asInt();
for (int version = defaultVersion ; version <= compilerVersion ; version++) {
if (task.getName().contains("Java" + version)) {
releaseVersion = version;
break;
}
}
task.getOptions().getRelease().set(releaseVersion);
project.getTasks().withType(JavaCompile.class)
.matching(compileTask -> compileTask.getName().equals(JavaPlugin.COMPILE_JAVA_TASK_NAME))
.forEach(compileTask -> {
compileTask.getOptions().setCompilerArgs(COMPILER_ARGS);
compileTask.getOptions().setEncoding("UTF-8");
});
project.getTasks().withType(JavaCompile.class)
.matching(compileTask -> compileTask.getName().equals(JavaPlugin.COMPILE_TEST_JAVA_TASK_NAME)
|| compileTask.getName().equals("compileTestFixturesJava"))
.forEach(compileTask -> {
compileTask.getOptions().setCompilerArgs(TEST_COMPILER_ARGS);
compileTask.getOptions().setEncoding("UTF-8");
});
}
}
@@ -1,5 +1,5 @@
/*
* Copyright 2002-present the original author or authors.
* Copyright 2002-2022 the original author or authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
@@ -16,78 +16,33 @@
package org.springframework.build;
import java.util.ArrayList;
import java.util.List;
import org.gradle.api.Project;
import org.gradle.api.tasks.SourceSet;
import org.gradle.api.tasks.SourceSetContainer;
import org.jetbrains.dokka.gradle.DokkaExtension;
import org.jetbrains.dokka.gradle.DokkaPlugin;
import org.jetbrains.kotlin.gradle.dsl.JvmTarget;
import org.jetbrains.kotlin.gradle.dsl.KotlinVersion;
import org.jetbrains.kotlin.gradle.dsl.KotlinJvmOptions;
import org.jetbrains.kotlin.gradle.tasks.KotlinCompile;
/**
* @author Brian Clozel
* @author Sebastien Deleuze
*/
public class KotlinConventions {
void apply(Project project) {
project.getPlugins().withId("org.jetbrains.kotlin.jvm", plugin -> {
project.getTasks().withType(KotlinCompile.class, this::configure);
if (project.getLayout().getProjectDirectory().dir("src/main/kotlin").getAsFile().exists()) {
project.getPlugins().apply(DokkaPlugin.class);
project.getExtensions().configure(DokkaExtension.class, dokka -> configure(project, dokka));
project.project(":framework-api").getDependencies().add("dokka", project);
}
});
project.getPlugins().withId("org.jetbrains.kotlin.jvm",
(plugin) -> project.getTasks().withType(KotlinCompile.class, this::configure));
}
private void configure(KotlinCompile compile) {
compile.compilerOptions(options -> {
options.getApiVersion().set(KotlinVersion.KOTLIN_2_2);
options.getLanguageVersion().set(KotlinVersion.KOTLIN_2_2);
options.getJvmTarget().set(JvmTarget.JVM_17);
options.getJavaParameters().set(true);
options.getAllWarningsAsErrors().set(true);
options.getFreeCompilerArgs().addAll(
"-Xsuppress-version-warnings",
"-Xjsr305=strict", // For dependencies using JSR 305
"-opt-in=kotlin.RequiresOptIn",
"-Xjdk-release=17", // Needed due to https://youtrack.jetbrains.com/issue/KT-49746
"-Xannotation-default-target=param-property" // Upcoming default, see https://youtrack.jetbrains.com/issue/KT-73255
);
});
}
private void configure(Project project, DokkaExtension dokka) {
dokka.getDokkaSourceSets().forEach(sourceSet -> {
sourceSet.getSourceRoots().setFrom(project.file("src/main/kotlin"));
sourceSet.getClasspath()
.from(project.getExtensions()
.getByType(SourceSetContainer.class)
.getByName(SourceSet.MAIN_SOURCE_SET_NAME)
.getOutput());
var externalDocumentationLinks = sourceSet.getExternalDocumentationLinks();
var springVersion = project.getVersion();
externalDocumentationLinks.register("spring-framework", spec -> {
spec.url("https://docs.spring.io/spring-framework/docs/" + springVersion + "/javadoc-api/");
spec.packageListUrl("https://docs.spring.io/spring-framework/docs/" + springVersion + "/javadoc-api/element-list");
});
externalDocumentationLinks.register("reactor-core", spec ->
spec.url("https://projectreactor.io/docs/core/release/api/"));
externalDocumentationLinks.register("reactive-streams", spec ->
spec.url("https://www.reactive-streams.org/reactive-streams-1.0.3-javadoc/"));
externalDocumentationLinks.register("kotlinx-coroutines", spec ->
spec.url("https://kotlinlang.org/api/kotlinx.coroutines/"));
externalDocumentationLinks.register("hamcrest", spec ->
spec.url("https://javadoc.io/doc/org.hamcrest/hamcrest/2.1/"));
externalDocumentationLinks.register("jakarta-servlet", spec -> {
spec.url("https://javadoc.io/doc/jakarta.servlet/jakarta.servlet-api/latest/");
spec.packageListUrl("https://javadoc.io/doc/jakarta.servlet/jakarta.servlet-api/latest/element-list");
});
externalDocumentationLinks.register("rsocket-core", spec ->
spec.url("https://javadoc.io/static/io.rsocket/rsocket-core/1.1.1/"));
});
KotlinJvmOptions kotlinOptions = compile.getKotlinOptions();
kotlinOptions.setApiVersion("1.7");
kotlinOptions.setLanguageVersion("1.7");
kotlinOptions.setJvmTarget("17");
kotlinOptions.setJavaParameters(true);
kotlinOptions.setAllWarningsAsErrors(true);
List<String> freeCompilerArgs = new ArrayList<>(compile.getKotlinOptions().getFreeCompilerArgs());
freeCompilerArgs.addAll(List.of("-Xsuppress-version-warnings", "-Xjsr305=strict", "-opt-in=kotlin.RequiresOptIn"));
compile.getKotlinOptions().setFreeCompilerArgs(freeCompilerArgs);
}
}
@@ -1,53 +0,0 @@
/*
* Copyright 2002-present the original author or authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* https://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.springframework.build;
import java.util.Collections;
import java.util.List;
import org.gradle.api.Project;
import org.gradle.api.provider.Property;
import org.gradle.api.tasks.compile.JavaCompile;
import org.gradle.api.tasks.testing.Test;
import org.gradle.process.CommandLineArgumentProvider;
public class SpringFrameworkExtension {
private final Property<Boolean> enableJavaPreviewFeatures;
public SpringFrameworkExtension(Project project) {
this.enableJavaPreviewFeatures = project.getObjects().property(Boolean.class);
project.getTasks().withType(JavaCompile.class).configureEach(javaCompile ->
javaCompile.getOptions().getCompilerArgumentProviders().add(asArgumentProvider()));
project.getTasks().withType(Test.class).configureEach(test ->
test.getJvmArgumentProviders().add(asArgumentProvider()));
}
public Property<Boolean> getEnableJavaPreviewFeatures() {
return this.enableJavaPreviewFeatures;
}
private CommandLineArgumentProvider asArgumentProvider() {
return () -> {
if (getEnableJavaPreviewFeatures().getOrElse(false)) {
return List.of("--enable-preview");
}
return Collections.emptyList();
};
}
}
@@ -1,5 +1,5 @@
/*
* Copyright 2002-present the original author or authors.
* Copyright 2002-2024 the original author or authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
@@ -16,31 +16,24 @@
package org.springframework.build;
import java.util.Map;
import org.gradle.api.Project;
import org.gradle.api.artifacts.Configuration;
import org.gradle.api.artifacts.Dependency;
import org.gradle.api.plugins.JavaBasePlugin;
import org.gradle.api.tasks.testing.Test;
import org.gradle.api.tasks.testing.TestFrameworkOptions;
import org.gradle.api.tasks.testing.junitplatform.JUnitPlatformOptions;
import org.gradle.testretry.TestRetryPlugin;
import org.gradle.testretry.TestRetryTaskExtension;
import java.util.Map;
/**
* Conventions that are applied in the presence of the {@link JavaBasePlugin}. When the
* plugin is applied:
* <ul>
* <li>The {@link TestRetryPlugin Test Retry} plugin is applied so that flaky tests
* are retried 3 times when running on the CI server.
* <li>Common test properties are configured
* <li>The ByteBuddy Java agent is configured on test tasks.
* </ul>
*
* @author Brian Clozel
* @author Andy Wilkinson
* @author Sam Brannen
*/
class TestConventions {
@@ -49,7 +42,6 @@ class TestConventions {
}
private void configureTestConventions(Project project) {
configureByteBuddyAgent(project);
project.getTasks().withType(Test.class,
test -> {
configureTests(project, test);
@@ -58,17 +50,14 @@ class TestConventions {
}
private void configureTests(Project project, Test test) {
TestFrameworkOptions existingOptions = test.getOptions();
test.useJUnitPlatform(options -> {
if (existingOptions instanceof JUnitPlatformOptions junitPlatformOptions) {
options.copyFrom(junitPlatformOptions);
}
});
test.useJUnitPlatform();
test.include("**/*Tests.class", "**/*Test.class");
test.setSystemProperties(Map.of(
"java.awt.headless", "true",
"io.netty.leakDetection.level", "paranoid",
"junit.platform.discovery.issue.severity.critical", "INFO"
"io.netty5.leakDetectionLevel", "paranoid",
"io.netty5.leakDetection.targetRecords", "32",
"io.netty5.buffer.lifecycleTracingEnabled", "true"
));
if (project.hasProperty("testGroups")) {
test.systemProperty("testGroups", project.getProperties().get("testGroups"));
@@ -80,20 +69,6 @@ class TestConventions {
);
}
private void configureByteBuddyAgent(Project project) {
if (project.hasProperty("byteBuddyVersion")) {
String byteBuddyVersion = (String) project.getProperties().get("byteBuddyVersion");
Configuration byteBuddyAgentConfig = project.getConfigurations().create("byteBuddyAgentConfig");
byteBuddyAgentConfig.setTransitive(false);
Dependency byteBuddyAgent = project.getDependencies().create("net.bytebuddy:byte-buddy-agent:" + byteBuddyVersion);
byteBuddyAgentConfig.getDependencies().add(byteBuddyAgent);
project.afterEvaluate(p -> {
p.getTasks().withType(Test.class, test -> test
.jvmArgs("-javaagent:" + byteBuddyAgentConfig.getAsPath()));
});
}
}
private void configureTestRetryPlugin(Project project, Test test) {
project.getPlugins().withType(TestRetryPlugin.class, testRetryPlugin -> {
TestRetryTaskExtension testRetry = test.getExtensions().getByType(TestRetryTaskExtension.class);
@@ -1,137 +0,0 @@
/*
* Copyright 2002-present the original author or authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* https://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.springframework.build.architecture;
import com.tngtech.archunit.core.domain.JavaClasses;
import com.tngtech.archunit.core.importer.ClassFileImporter;
import com.tngtech.archunit.lang.ArchRule;
import com.tngtech.archunit.lang.EvaluationResult;
import java.io.File;
import java.io.IOException;
import java.nio.file.Files;
import java.nio.file.StandardOpenOption;
import java.util.List;
import org.gradle.api.DefaultTask;
import org.gradle.api.GradleException;
import org.gradle.api.Task;
import org.gradle.api.file.DirectoryProperty;
import org.gradle.api.file.FileCollection;
import org.gradle.api.file.FileTree;
import org.gradle.api.provider.ListProperty;
import org.gradle.api.provider.Property;
import org.gradle.api.tasks.IgnoreEmptyDirectories;
import org.gradle.api.tasks.Input;
import org.gradle.api.tasks.InputFiles;
import org.gradle.api.tasks.Internal;
import org.gradle.api.tasks.Optional;
import org.gradle.api.tasks.OutputDirectory;
import org.gradle.api.tasks.PathSensitive;
import org.gradle.api.tasks.PathSensitivity;
import org.gradle.api.tasks.SkipWhenEmpty;
import org.gradle.api.tasks.TaskAction;
import static org.springframework.build.architecture.ArchitectureRules.allPackagesShouldBeFreeOfTangles;
import static org.springframework.build.architecture.ArchitectureRules.classesShouldNotImportForbiddenTypes;
import static org.springframework.build.architecture.ArchitectureRules.javaClassesShouldNotImportKotlinAnnotations;
import static org.springframework.build.architecture.ArchitectureRules.noClassesShouldCallStringToLowerCaseWithoutLocale;
import static org.springframework.build.architecture.ArchitectureRules.noClassesShouldCallStringToUpperCaseWithoutLocale;
import static org.springframework.build.architecture.ArchitectureRules.packageInfoShouldBeNullMarked;
/**
* {@link Task} that checks for architecture problems.
*
* @author Andy Wilkinson
* @author Scott Frederick
*/
public abstract class ArchitectureCheck extends DefaultTask {
private FileCollection classes;
public ArchitectureCheck() {
getOutputDirectory().convention(getProject().getLayout().getBuildDirectory().dir(getName()));
getProhibitObjectsRequireNonNull().convention(true);
getRules().addAll(packageInfoShouldBeNullMarked(),
classesShouldNotImportForbiddenTypes(),
javaClassesShouldNotImportKotlinAnnotations(),
allPackagesShouldBeFreeOfTangles(),
noClassesShouldCallStringToLowerCaseWithoutLocale(),
noClassesShouldCallStringToUpperCaseWithoutLocale());
getRuleDescriptions().set(getRules().map((rules) -> rules.stream().map(ArchRule::getDescription).toList()));
}
@TaskAction
void checkArchitecture() throws IOException {
JavaClasses javaClasses = new ClassFileImporter()
.importPaths(this.classes.getFiles().stream().map(File::toPath).toList());
List<EvaluationResult> violations = getRules().get()
.stream()
.map((rule) -> rule.evaluate(javaClasses))
.filter(EvaluationResult::hasViolation)
.toList();
File outputFile = getOutputDirectory().file("failure-report.txt").get().getAsFile();
outputFile.getParentFile().mkdirs();
if (!violations.isEmpty()) {
StringBuilder report = new StringBuilder();
for (EvaluationResult violation : violations) {
report.append(violation.getFailureReport());
report.append(String.format("%n"));
}
Files.writeString(outputFile.toPath(), report.toString(), StandardOpenOption.CREATE,
StandardOpenOption.TRUNCATE_EXISTING);
throw new GradleException("Architecture check failed. See '" + outputFile + "' for details.");
}
else {
outputFile.createNewFile();
}
}
public void setClasses(FileCollection classes) {
this.classes = classes;
}
@Internal
public FileCollection getClasses() {
return this.classes;
}
@InputFiles
@SkipWhenEmpty
@IgnoreEmptyDirectories
@PathSensitive(PathSensitivity.RELATIVE)
final FileTree getInputClasses() {
return this.classes.getAsFileTree();
}
@Optional
@InputFiles
@PathSensitive(PathSensitivity.RELATIVE)
public abstract DirectoryProperty getResourcesDirectory();
@OutputDirectory
public abstract DirectoryProperty getOutputDirectory();
@Internal
public abstract ListProperty<ArchRule> getRules();
@Internal
public abstract Property<Boolean> getProhibitObjectsRequireNonNull();
@Input
// The rules themselves can't be an input as they aren't serializable so we use
// their descriptions instead
abstract ListProperty<String> getRuleDescriptions();
}
@@ -1,74 +0,0 @@
/*
* Copyright 2002-present the original author or authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* https://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.springframework.build.architecture;
import java.util.ArrayList;
import java.util.List;
import org.gradle.api.Plugin;
import org.gradle.api.Project;
import org.gradle.api.Task;
import org.gradle.api.plugins.JavaPlugin;
import org.gradle.api.plugins.JavaPluginExtension;
import org.gradle.api.tasks.SourceSet;
import org.gradle.api.tasks.TaskProvider;
import org.gradle.language.base.plugins.LifecycleBasePlugin;
/**
* {@link Plugin} for verifying a project's architecture.
*
* @author Andy Wilkinson
*/
public class ArchitecturePlugin implements Plugin<Project> {
@Override
public void apply(Project project) {
project.getPlugins().withType(JavaPlugin.class, (javaPlugin) -> registerTasks(project));
}
private void registerTasks(Project project) {
JavaPluginExtension javaPluginExtension = project.getExtensions().getByType(JavaPluginExtension.class);
List<TaskProvider<ArchitectureCheck>> architectureChecks = new ArrayList<>();
for (SourceSet sourceSet : javaPluginExtension.getSourceSets()) {
if (sourceSet.getName().contains("test")) {
// skip test source sets.
continue;
}
TaskProvider<ArchitectureCheck> checkArchitecture = project.getTasks()
.register(taskName(sourceSet), ArchitectureCheck.class,
(task) -> {
task.setClasses(sourceSet.getOutput().getClassesDirs());
task.getResourcesDirectory().set(sourceSet.getOutput().getResourcesDir());
task.dependsOn(sourceSet.getProcessResourcesTaskName());
task.setDescription("Checks the architecture of the classes of the " + sourceSet.getName()
+ " source set.");
task.setGroup(LifecycleBasePlugin.VERIFICATION_GROUP);
});
architectureChecks.add(checkArchitecture);
}
if (!architectureChecks.isEmpty()) {
TaskProvider<Task> checkTask = project.getTasks().named(LifecycleBasePlugin.CHECK_TASK_NAME);
checkTask.configure((check) -> check.dependsOn(architectureChecks));
}
}
private static String taskName(SourceSet sourceSet) {
return "checkArchitecture"
+ sourceSet.getName().substring(0, 1).toUpperCase()
+ sourceSet.getName().substring(1);
}
}
@@ -1,107 +0,0 @@
/*
* Copyright 2002-present the original author or authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* https://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.springframework.build.architecture;
import com.tngtech.archunit.base.DescribedPredicate;
import com.tngtech.archunit.core.domain.JavaClass;
import com.tngtech.archunit.lang.ArchRule;
import com.tngtech.archunit.lang.syntax.ArchRuleDefinition;
import com.tngtech.archunit.library.dependencies.SliceAssignment;
import com.tngtech.archunit.library.dependencies.SliceIdentifier;
import com.tngtech.archunit.library.dependencies.SlicesRuleDefinition;
import java.util.List;
abstract class ArchitectureRules {
static ArchRule allPackagesShouldBeFreeOfTangles() {
return SlicesRuleDefinition.slices()
.assignedFrom(new SpringSlices()).should().beFreeOfCycles();
}
static ArchRule noClassesShouldCallStringToLowerCaseWithoutLocale() {
return ArchRuleDefinition.noClasses()
.should()
.callMethod(String.class, "toLowerCase")
.because("String.toLowerCase(Locale.ROOT) should be used instead");
}
static ArchRule noClassesShouldCallStringToUpperCaseWithoutLocale() {
return ArchRuleDefinition.noClasses()
.should()
.callMethod(String.class, "toUpperCase")
.because("String.toUpperCase(Locale.ROOT) should be used instead");
}
static ArchRule packageInfoShouldBeNullMarked() {
return ArchRuleDefinition.classes()
.that().haveSimpleName("package-info")
.should().beAnnotatedWith("org.jspecify.annotations.NullMarked")
.allowEmptyShould(true);
}
static ArchRule classesShouldNotImportForbiddenTypes() {
return ArchRuleDefinition.noClasses()
.should().dependOnClassesThat()
.haveFullyQualifiedName("reactor.core.support.Assert")
.orShould().dependOnClassesThat()
.haveFullyQualifiedName("org.slf4j.LoggerFactory")
.orShould().dependOnClassesThat()
.haveFullyQualifiedName("org.springframework.lang.NonNull")
.orShould().dependOnClassesThat()
.haveFullyQualifiedName("org.springframework.lang.Nullable");
}
static ArchRule javaClassesShouldNotImportKotlinAnnotations() {
return ArchRuleDefinition.noClasses()
.that(new DescribedPredicate<JavaClass>("is not a Kotlin class") {
@Override
public boolean test(JavaClass javaClass) {
return javaClass.getSourceCodeLocation()
.getSourceFileName().endsWith(".java");
}
}
)
.should().dependOnClassesThat()
.resideInAnyPackage("org.jetbrains.annotations..")
.allowEmptyShould(true);
}
static class SpringSlices implements SliceAssignment {
private final List<String> ignoredPackages = List.of("org.springframework.asm",
"org.springframework.cglib",
"org.springframework.javapoet",
"org.springframework.objenesis");
@Override
public SliceIdentifier getIdentifierOf(JavaClass javaClass) {
String packageName = javaClass.getPackageName();
for (String ignoredPackage : ignoredPackages) {
if (packageName.startsWith(ignoredPackage)) {
return SliceIdentifier.ignore();
}
}
return SliceIdentifier.of("spring framework");
}
@Override
public String getDescription() {
return "Spring Framework Slices";
}
}
}
@@ -1,5 +1,5 @@
/*
* Copyright 2002-present the original author or authors.
* Copyright 2002-2023 the original author or authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
@@ -1,5 +1,5 @@
/*
* Copyright 2002-present the original author or authors.
* Copyright 2002-2023 the original author or authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
@@ -1,5 +1,5 @@
/*
* Copyright 2002-present the original author or authors.
* Copyright 2002-2023 the original author or authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
@@ -1,5 +1,5 @@
/*
* Copyright 2002-present the original author or authors.
* Copyright 2002-2023 the original author or authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
@@ -27,7 +27,6 @@ import org.gradle.api.attributes.Usage;
import org.gradle.api.attributes.java.TargetJvmVersion;
import org.gradle.api.plugins.JavaPlugin;
import org.gradle.api.plugins.jvm.JvmTestSuite;
import org.gradle.api.tasks.TaskProvider;
import org.gradle.api.tasks.testing.Test;
import org.gradle.testing.base.TestingExtension;
@@ -53,7 +52,7 @@ public class RuntimeHintsAgentPlugin implements Plugin<Project> {
TestingExtension testing = project.getExtensions().getByType(TestingExtension.class);
JvmTestSuite jvmTestSuite = (JvmTestSuite) testing.getSuites().getByName("test");
RuntimeHintsAgentExtension agentExtension = createRuntimeHintsAgentExtension(project);
TaskProvider<Test> agentTest = project.getTasks().register(RUNTIMEHINTS_TEST_TASK, Test.class, test -> {
Test agentTest = project.getTasks().create(RUNTIMEHINTS_TEST_TASK, Test.class, test -> {
test.useJUnitPlatform(options -> {
options.includeTags("RuntimeHintsTests");
});
@@ -64,7 +63,7 @@ public class RuntimeHintsAgentPlugin implements Plugin<Project> {
test.setClasspath(jvmTestSuite.getSources().getRuntimeClasspath());
test.getJvmArgumentProviders().add(createRuntimeHintsAgentArgumentProvider(project, agentExtension));
});
project.getTasks().named("check", task -> task.dependsOn(agentTest));
project.getTasks().getByName("check", task -> task.dependsOn(agentTest));
project.getDependencies().add(CONFIGURATION_NAME, project.project(":spring-core-test"));
});
}
@@ -1,139 +0,0 @@
/*
* Copyright 2002-present the original author or authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* https://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.springframework.build.multirelease;
import javax.inject.Inject;
import org.gradle.api.artifacts.Configuration;
import org.gradle.api.artifacts.ConfigurationContainer;
import org.gradle.api.artifacts.dsl.DependencyHandler;
import org.gradle.api.attributes.LibraryElements;
import org.gradle.api.file.ConfigurableFileCollection;
import org.gradle.api.file.FileCollection;
import org.gradle.api.java.archives.Attributes;
import org.gradle.api.model.ObjectFactory;
import org.gradle.api.tasks.SourceSet;
import org.gradle.api.tasks.SourceSetContainer;
import org.gradle.api.tasks.TaskContainer;
import org.gradle.api.tasks.TaskProvider;
import org.gradle.api.tasks.bundling.Jar;
import org.gradle.api.tasks.compile.JavaCompile;
import org.gradle.api.tasks.testing.Test;
import org.gradle.language.base.plugins.LifecycleBasePlugin;
/**
* @author Cedric Champeau
* @author Brian Clozel
*/
public abstract class MultiReleaseExtension {
private final TaskContainer tasks;
private final SourceSetContainer sourceSets;
private final DependencyHandler dependencies;
private final ObjectFactory objects;
private final ConfigurationContainer configurations;
@Inject
public MultiReleaseExtension(SourceSetContainer sourceSets,
ConfigurationContainer configurations,
TaskContainer tasks,
DependencyHandler dependencies,
ObjectFactory objectFactory) {
this.sourceSets = sourceSets;
this.configurations = configurations;
this.tasks = tasks;
this.dependencies = dependencies;
this.objects = objectFactory;
}
public void releaseVersions(int... javaVersions) {
releaseVersions("src/main/", "src/test/", javaVersions);
}
private void releaseVersions(String mainSourceDirectory, String testSourceDirectory, int... javaVersions) {
for (int javaVersion : javaVersions) {
addLanguageVersion(javaVersion, mainSourceDirectory, testSourceDirectory);
}
}
private void addLanguageVersion(int javaVersion, String mainSourceDirectory, String testSourceDirectory) {
String javaN = "java" + javaVersion;
SourceSet langSourceSet = sourceSets.create(javaN, srcSet -> srcSet.getJava().srcDir(mainSourceDirectory + javaN));
SourceSet testSourceSet = sourceSets.create(javaN + "Test", srcSet -> srcSet.getJava().srcDir(testSourceDirectory + javaN));
SourceSet sharedSourceSet = sourceSets.findByName(SourceSet.MAIN_SOURCE_SET_NAME);
SourceSet sharedTestSourceSet = sourceSets.findByName(SourceSet.TEST_SOURCE_SET_NAME);
FileCollection mainClasses = objects.fileCollection().from(sourceSets.getByName(SourceSet.MAIN_SOURCE_SET_NAME).getOutput().getClassesDirs());
dependencies.add(javaN + "Implementation", mainClasses);
tasks.named(langSourceSet.getCompileJavaTaskName(), JavaCompile.class, task ->
task.getOptions().getRelease().set(javaVersion)
);
tasks.named(testSourceSet.getCompileJavaTaskName(), JavaCompile.class, task ->
task.getOptions().getRelease().set(javaVersion)
);
TaskProvider<Test> testTask = createTestTask(javaVersion, testSourceSet, sharedTestSourceSet, langSourceSet, sharedSourceSet);
tasks.named("check", task -> task.dependsOn(testTask));
configureMultiReleaseJar(javaVersion, langSourceSet);
}
private TaskProvider<Test> createTestTask(int javaVersion, SourceSet testSourceSet, SourceSet sharedTestSourceSet, SourceSet langSourceSet, SourceSet sharedSourceSet) {
Configuration testImplementation = configurations.getByName(testSourceSet.getImplementationConfigurationName());
testImplementation.extendsFrom(configurations.getByName(sharedTestSourceSet.getImplementationConfigurationName()));
Configuration testCompileOnly = configurations.getByName(testSourceSet.getCompileOnlyConfigurationName());
testCompileOnly.extendsFrom(configurations.getByName(sharedTestSourceSet.getCompileOnlyConfigurationName()));
testCompileOnly.getDependencies().add(dependencies.create(langSourceSet.getOutput().getClassesDirs()));
testCompileOnly.getDependencies().add(dependencies.create(sharedSourceSet.getOutput().getClassesDirs()));
Configuration testRuntimeClasspath = configurations.getByName(testSourceSet.getRuntimeClasspathConfigurationName());
// so here's the deal. MRjars are JARs! Which means that to execute tests, we need
// the JAR on classpath, not just classes + resources as Gradle usually does
testRuntimeClasspath.getAttributes()
.attribute(LibraryElements.LIBRARY_ELEMENTS_ATTRIBUTE, objects.named(LibraryElements.class, LibraryElements.JAR));
TaskProvider<Test> testTask = tasks.register("java" + javaVersion + "Test", Test.class, test -> {
test.setGroup(LifecycleBasePlugin.VERIFICATION_GROUP);
ConfigurableFileCollection testClassesDirs = objects.fileCollection();
testClassesDirs.from(testSourceSet.getOutput());
testClassesDirs.from(sharedTestSourceSet.getOutput());
test.setTestClassesDirs(testClassesDirs);
ConfigurableFileCollection classpath = objects.fileCollection();
// must put the MRJar first on classpath
classpath.from(tasks.named("jar"));
// then we put the specific test sourceset tests, so that we can override
// the shared versions
classpath.from(testSourceSet.getOutput());
// then we add the shared tests
classpath.from(sharedTestSourceSet.getRuntimeClasspath());
test.setClasspath(classpath);
});
return testTask;
}
private void configureMultiReleaseJar(int version, SourceSet languageSourceSet) {
tasks.named("jar", Jar.class, jar -> {
jar.into("META-INF/versions/" + version, s -> s.from(languageSourceSet.getOutput()));
Attributes attributes = jar.getManifest().getAttributes();
attributes.put("Multi-Release", "true");
});
}
}
@@ -1,76 +0,0 @@
/*
* Copyright 2002-present the original author or authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* https://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.springframework.build.multirelease;
import javax.inject.Inject;
import org.gradle.api.JavaVersion;
import org.gradle.api.Plugin;
import org.gradle.api.Project;
import org.gradle.api.artifacts.ConfigurationContainer;
import org.gradle.api.artifacts.dsl.DependencyHandler;
import org.gradle.api.model.ObjectFactory;
import org.gradle.api.plugins.ExtensionContainer;
import org.gradle.api.plugins.JavaPlugin;
import org.gradle.api.plugins.JavaPluginExtension;
import org.gradle.api.tasks.TaskContainer;
import org.gradle.api.tasks.TaskProvider;
import org.gradle.api.tasks.bundling.AbstractArchiveTask;
import org.gradle.jvm.tasks.Jar;
import org.gradle.jvm.toolchain.JavaLanguageVersion;
import org.gradle.jvm.toolchain.JavaToolchainService;
/**
* A plugin which adds support for building multi-release jars
* with Gradle.
* @author Cedric Champeau
* @author Brian Clozel
* @see <a href="https://github.com/melix/mrjar-gradle-plugin">original project</a>
*/
public class MultiReleaseJarPlugin implements Plugin<Project> {
public static String VALIDATE_JAR_TASK_NAME = "validateMultiReleaseJar";
@Inject
protected JavaToolchainService getToolchains() {
throw new UnsupportedOperationException();
}
public void apply(Project project) {
project.getPlugins().apply(JavaPlugin.class);
ExtensionContainer extensions = project.getExtensions();
JavaPluginExtension javaPluginExtension = extensions.getByType(JavaPluginExtension.class);
ConfigurationContainer configurations = project.getConfigurations();
TaskContainer tasks = project.getTasks();
DependencyHandler dependencies = project.getDependencies();
ObjectFactory objects = project.getObjects();
extensions.create("multiRelease", MultiReleaseExtension.class,
javaPluginExtension.getSourceSets(),
configurations,
tasks,
dependencies,
objects);
if (JavaVersion.current().isCompatibleWith(JavaVersion.VERSION_25)) {
TaskProvider<MultiReleaseJarValidateTask> validateJarTask = tasks.register(VALIDATE_JAR_TASK_NAME, MultiReleaseJarValidateTask.class, (task) -> {
task.getJar().set(tasks.named("jar", Jar.class).flatMap(AbstractArchiveTask::getArchiveFile));
task.getJavaLauncher().set(task.getJavaToolchainService().launcherFor(spec -> spec.getLanguageVersion().set(JavaLanguageVersion.of(25))));
});
tasks.named("check", task -> task.dependsOn(validateJarTask));
}
}
}
@@ -1,47 +0,0 @@
/*
* Copyright 2002-present the original author or authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* https://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.springframework.build.multirelease;
import org.gradle.api.file.RegularFileProperty;
import org.gradle.api.tasks.CacheableTask;
import org.gradle.api.tasks.InputFile;
import org.gradle.api.tasks.JavaExec;
import org.gradle.api.tasks.PathSensitive;
import org.gradle.api.tasks.PathSensitivity;
import org.gradle.jvm.toolchain.JavaToolchainService;
import java.util.List;
import javax.inject.Inject;
@CacheableTask
public abstract class MultiReleaseJarValidateTask extends JavaExec {
public MultiReleaseJarValidateTask() {
getMainModule().set("jdk.jartool");
getArgumentProviders().add(() -> List.of("--validate", "--file", getJar().get().getAsFile().getAbsolutePath()));
}
@Inject
protected abstract JavaToolchainService getJavaToolchainService();
@InputFile
@PathSensitive(PathSensitivity.RELATIVE)
public abstract RegularFileProperty getJar();
}
@@ -1,5 +1,5 @@
/*
* Copyright 2002-present the original author or authors.
* Copyright 2002-2023 the original author or authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
@@ -1,5 +1,5 @@
/*
* Copyright 2002-present the original author or authors.
* Copyright 2002-2023 the original author or authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
@@ -1,182 +0,0 @@
/*
* Copyright 2002-present the original author or authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* https://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.springframework.build.multirelease;
import java.io.File;
import java.io.FileWriter;
import java.io.IOException;
import java.io.PrintWriter;
import java.nio.file.Files;
import java.nio.file.Path;
import java.util.jar.Attributes;
import java.util.jar.JarFile;
import org.gradle.testkit.runner.BuildResult;
import org.gradle.testkit.runner.GradleRunner;
import org.gradle.testkit.runner.UnexpectedBuildFailure;
import org.junit.jupiter.api.BeforeEach;
import org.junit.jupiter.api.Test;
import org.junit.jupiter.api.condition.DisabledForJreRange;
import org.junit.jupiter.api.condition.JRE;
import org.junit.jupiter.api.io.TempDir;
import static org.assertj.core.api.Assertions.assertThat;
import static org.assertj.core.api.Assertions.assertThatThrownBy;
/**
* Tests for {@link MultiReleaseJarPlugin}
*/
public class MultiReleaseJarPluginTests {
private File projectDir;
private File buildFile;
private File propertiesFile;
@BeforeEach
void setup(@TempDir File projectDir) {
this.projectDir = projectDir;
this.buildFile = new File(this.projectDir, "build.gradle");
this.propertiesFile = new File(this.projectDir, "gradle.properties");
}
@Test
void configureSourceSets() throws IOException {
writeBuildFile("""
plugins {
id 'java'
id 'org.springframework.build.multiReleaseJar'
}
multiRelease { releaseVersions 21, 24 }
task printSourceSets {
doLast {
sourceSets.all { println it.name }
}
}
""");
BuildResult buildResult = runGradle("printSourceSets");
assertThat(buildResult.getOutput()).contains("main", "test", "java21", "java21Test", "java24", "java24Test");
}
@Test
void configureToolchainReleaseVersion() throws IOException {
writeBuildFile("""
plugins {
id 'java'
id 'org.springframework.build.multiReleaseJar'
}
multiRelease { releaseVersions 21 }
task printReleaseVersion {
doLast {
tasks.all { println it.name }
tasks.named("compileJava21Java") {
println "compileJava21Java releaseVersion: ${it.options.release.get()}"
}
tasks.named("compileJava21TestJava") {
println "compileJava21TestJava releaseVersion: ${it.options.release.get()}"
}
}
}
""");
BuildResult buildResult = runGradle("printReleaseVersion");
assertThat(buildResult.getOutput()).contains("compileJava21Java releaseVersion: 21")
.contains("compileJava21TestJava releaseVersion: 21");
}
@Test
void packageInJar() throws IOException {
writeBuildFile("""
plugins {
id 'java'
id 'org.springframework.build.multiReleaseJar'
}
version = '1.2.3'
multiRelease { releaseVersions 17 }
""");
writeClass("src/main/java17", "Main.java", """
public class Main {}
""");
BuildResult buildResult = runGradle("assemble");
File file = new File(this.projectDir, "/build/libs/" + this.projectDir.getName() + "-1.2.3.jar");
assertThat(file).exists();
try (JarFile jar = new JarFile(file)) {
Attributes mainAttributes = jar.getManifest().getMainAttributes();
assertThat(mainAttributes.getValue("Multi-Release")).isEqualTo("true");
assertThat(jar.entries().asIterator()).toIterable()
.anyMatch(entry -> entry.getName().equals("META-INF/versions/17/Main.class"));
}
}
@Test
@DisabledForJreRange(max = JRE.JAVA_24, disabledReason = "'jar --validate' is available as of Java 25")
void validateJar() throws IOException {
writeBuildFile("""
plugins {
id 'java'
id 'org.springframework.build.multiReleaseJar'
}
version = '1.2.3'
tasks.withType(JavaCompile).configureEach {
options.release = 11
}
multiRelease { releaseVersions 17 }
""");
writeGradleProperties("""
org.gradle.jvmargs=-Duser.language=en
""");
writeClass("src/main/java17", "Main.java", """
public class Main {
public void method() {}
}
""");
writeClass("src/main/java", "Main.java", """
public class Main {}
""");
assertThatThrownBy(() ->runGradle("validateMultiReleaseJar"))
.isInstanceOf(UnexpectedBuildFailure.class)
.hasMessageContaining("entry: META-INF/versions/17/Main.class, contains a class with different api from earlier version");
}
private void writeBuildFile(String buildContent) throws IOException {
try (PrintWriter out = new PrintWriter(new FileWriter(this.buildFile))) {
out.print(buildContent);
}
}
private void writeGradleProperties(String properties) throws IOException {
try (PrintWriter out = new PrintWriter(new FileWriter(this.propertiesFile))) {
out.print(properties);
}
}
private void writeClass(String path, String fileName, String fileContent) throws IOException {
Path folder = this.projectDir.toPath().resolve(path);
Files.createDirectories(folder);
Path filePath = folder.resolve(fileName);
Files.createFile(filePath);
Files.writeString(filePath, fileContent);
}
private BuildResult runGradle(String... args) {
return GradleRunner.create().withProjectDir(this.projectDir).withArguments(args).withPluginClasspath().build();
}
}
+16 -23
View File
@@ -1,7 +1,6 @@
plugins {
id 'java-platform'
id 'io.freefair.aggregate-javadoc' version '8.13.1'
id 'org.jetbrains.dokka'
id 'io.freefair.aggregate-javadoc' version '8.3'
}
description = "Spring Framework API Docs"
@@ -10,7 +9,7 @@ apply from: "${rootDir}/gradle/publications.gradle"
repositories {
maven {
url = "https://repo.spring.io/release"
url "https://repo.spring.io/release"
}
}
@@ -21,12 +20,7 @@ dependencies {
}
javadoc {
javadocTool.set(javaToolchains.javadocToolFor({
languageVersion = JavaLanguageVersion.of(25)
}))
title = "${rootProject.description} ${version} API"
failOnError = true
options {
encoding = "UTF-8"
memberLevel = JavadocMemberLevel.PROTECTED
@@ -37,13 +31,8 @@ javadoc {
destinationDir = project.java.docsDir.dir("javadoc-api").get().asFile
splitIndex = true
links(rootProject.ext.javadocLinks)
// Check for 'syntax' and 'reference' during linting.
addBooleanOption('Xdoclint:syntax,reference', true)
// Change modularity mismatch from warn to info.
// See https://github.com/spring-projects/spring-framework/issues/27497
addStringOption("-link-modularity-mismatch", "info")
// Fail build on Javadoc warnings.
addBooleanOption('Werror', true)
addBooleanOption('Xdoclint:syntax,reference', true) // only check syntax and reference with doclint
addBooleanOption('Werror', true) // fail build on Javadoc warnings
}
maxMemory = "1024m"
doFirst {
@@ -55,19 +44,23 @@ javadoc {
}
}
dokka {
moduleName = "spring-framework"
dokkaPublications.html {
outputDirectory = project.java.docsDir.dir("kdoc-api")
includes.from("$rootProject.rootDir/framework-docs/src/docs/api/dokka-overview.md")
/**
* Produce KDoc for all Spring Framework modules in "build/docs/kdoc"
*/
rootProject.tasks.dokkaHtmlMultiModule.configure {
dependsOn {
tasks.named("javadoc")
}
moduleName.set("spring-framework")
outputDirectory.set(project.java.docsDir.dir("kdoc-api").get().asFile)
includes.from("$rootProject.rootDir/framework-docs/src/docs/api/dokka-overview.md")
}
/**
* Zip all Java docs (javadoc & kdoc) into a single archive
*/
tasks.register('docsZip', Zip) {
dependsOn = ['javadoc', 'dokkaGenerate']
dependsOn = ['javadoc', rootProject.tasks.dokkaHtmlMultiModule]
group = "distribution"
description = "Builds -${archiveClassifier} archive containing api and reference " +
"for deployment at https://docs.spring.io/spring-framework/docs/."
@@ -80,7 +73,7 @@ tasks.register('docsZip', Zip) {
from(javadoc) {
into "javadoc-api"
}
from(project.java.docsDir.dir("kdoc-api")) {
from(rootProject.tasks.dokkaHtmlMultiModule.outputDirectory) {
into "kdoc-api"
}
}
@@ -94,7 +87,7 @@ tasks.register('schemaZip', Zip) {
archiveClassifier.set("schema")
description = "Builds -${archiveClassifier} archive containing all " +
"XSDs for deployment at https://springframework.org/schema."
duplicatesStrategy = DuplicatesStrategy.EXCLUDE
duplicatesStrategy DuplicatesStrategy.EXCLUDE
moduleProjects.each { module ->
def Properties schemas = new Properties();
+2 -4
View File
@@ -13,9 +13,7 @@ content:
- url: https://github.com/spring-projects/spring-framework
# Refname matching:
# https://docs.antora.org/antora/latest/playbook/content-refname-matching/
# branches: We include snapshots for main, 6.2.x, and 7.0.x to 9.*.x.
branches: ['main', '6.2.x', '{7..9}.+({0..9}).x']
# tags: We effectively include all releases from 6.0.9 to 9.*.*.
branches: ['main', '{6..9}.+({1..9}).x']
tags: ['v{6..9}.+({0..9}).+({0..9})?(-{RC,M}*)', '!(v6.0.{0..8})', '!(v6.0.0-{RC,M}{0..9})']
start_path: framework-docs
asciidoc:
@@ -38,4 +36,4 @@ runtime:
failure_level: warn
ui:
bundle:
url: https://github.com/spring-io/antora-ui-spring/releases/download/v0.4.25/ui-bundle.zip
url: https://github.com/spring-io/antora-ui-spring/releases/download/v0.4.17/ui-bundle.zip
+1 -1
View File
@@ -6,7 +6,7 @@ nav:
ext:
collector:
run:
command: gradlew -q -PbuildSrc.skipTests=true "-Dorg.gradle.jvmargs=-Xmx3g" :framework-docs:generateAntoraResources
command: gradlew -q -PbuildSrc.skipTests=true "-Dorg.gradle.jvmargs=-Xmx3g -XX:+HeapDumpOnOutOfMemoryError" :framework-docs:generateAntoraResources
local: true
scan:
dir: ./build/generated-antora-resources
+28 -46
View File
@@ -1,6 +1,3 @@
import org.jetbrains.kotlin.gradle.dsl.JvmTarget
import org.jetbrains.kotlin.gradle.tasks.KotlinCompilationTask
plugins {
id 'kotlin'
id 'io.spring.antora.generate-antora-yml' version '0.0.1'
@@ -40,53 +37,38 @@ javadoc {
repositories {
maven {
url = "https://repo.spring.io/release"
url "https://repo.spring.io/release"
}
}
// To avoid a redeclaration error with Kotlin compiler and set the JVM target
tasks.withType(KotlinCompilationTask.class).configureEach {
javaSources.from = []
compilerOptions.jvmTarget = JvmTarget.JVM_17
compilerOptions.freeCompilerArgs.addAll(
"-Xjdk-release=17", // Needed due to https://youtrack.jetbrains.com/issue/KT-49746
"-Xannotation-default-target=param-property" // Upcoming default, see https://youtrack.jetbrains.com/issue/KT-73255
)
}
dependencies {
implementation(project(":spring-aspects"))
implementation(project(":spring-context"))
implementation(project(":spring-context-support"))
implementation(project(":spring-core-test"))
implementation(project(":spring-jdbc"))
implementation(project(":spring-jms"))
implementation(project(":spring-test"))
implementation(project(":spring-web"))
implementation(project(":spring-webflux"))
implementation(project(":spring-webmvc"))
implementation(project(":spring-websocket"))
api(project(":spring-aspects"))
api(project(":spring-context"))
api(project(":spring-context-support"))
api(project(":spring-jdbc"))
api(project(":spring-jms"))
api(project(":spring-test"))
api(project(":spring-web"))
api(project(":spring-webflux"))
api(project(":spring-webmvc"))
api(project(":spring-websocket"))
implementation("com.github.ben-manes.caffeine:caffeine")
implementation("com.mchange:c3p0:0.9.5.5")
implementation("com.oracle.database.jdbc:ojdbc11")
implementation("io.micrometer:context-propagation")
implementation("io.projectreactor.netty:reactor-netty-http")
implementation("jakarta.jms:jakarta.jms-api")
implementation("jakarta.servlet:jakarta.servlet-api")
implementation("jakarta.resource:jakarta.resource-api")
implementation("jakarta.validation:jakarta.validation-api")
implementation("jakarta.websocket:jakarta.websocket-client-api")
implementation("javax.cache:cache-api")
implementation("org.apache.activemq:activemq-ra:6.1.2")
implementation("org.apache.commons:commons-dbcp2:2.11.0")
implementation("org.aspectj:aspectjweaver")
api("com.fasterxml.jackson.core:jackson-databind")
api("com.fasterxml.jackson.module:jackson-module-parameter-names")
api("com.mchange:c3p0:0.9.5.5")
api("com.oracle.database.jdbc:ojdbc11")
api("io.projectreactor.netty:reactor-netty-http")
api("jakarta.jms:jakarta.jms-api")
api("jakarta.servlet:jakarta.servlet-api")
api("jakarta.resource:jakarta.resource-api")
api("jakarta.validation:jakarta.validation-api")
api("javax.cache:cache-api")
api("org.apache.activemq:activemq-ra:6.1.2")
api("org.apache.commons:commons-dbcp2:2.11.0")
api("org.aspectj:aspectjweaver")
api("org.eclipse.jetty.websocket:jetty-websocket-jetty-api")
api("org.jetbrains.kotlin:kotlin-stdlib")
implementation(project(":spring-core-test"))
implementation("org.assertj:assertj-core")
implementation("org.eclipse.jetty.websocket:jetty-websocket-jetty-api")
implementation("org.jetbrains.kotlin:kotlin-stdlib")
implementation("org.jetbrains.kotlinx:kotlinx-coroutines-core")
implementation("org.jetbrains.kotlinx:kotlinx-coroutines-reactor")
implementation("org.junit.jupiter:junit-jupiter-api")
implementation("tools.jackson.core:jackson-databind")
implementation("tools.jackson.dataformat:jackson-dataformat-xml")
}
+8 -14
View File
@@ -32,7 +32,6 @@
**** xref:core/beans/java/bean-annotation.adoc[]
**** xref:core/beans/java/configuration-annotation.adoc[]
**** xref:core/beans/java/composing-configuration-classes.adoc[]
**** xref:core/beans/java/programmatic-bean-registration.adoc[]
*** xref:core/beans/environment.adoc[]
*** xref:core/beans/context-load-time-weaver.adoc[]
*** xref:core/beans/context-introduction.adoc[]
@@ -40,8 +39,8 @@
** xref:core/resources.adoc[]
** xref:core/validation.adoc[]
*** xref:core/validation/validator.adoc[]
*** xref:core/validation/data-binding.adoc[]
*** xref:core/validation/error-code-resolution.adoc[]
*** xref:core/validation/beans-beans.adoc[]
*** xref:core/validation/conversion.adoc[]
*** xref:core/validation/convert.adoc[]
*** xref:core/validation/format.adoc[]
*** xref:core/validation/format-configuring-formatting-globaldatetimeformat.adoc[]
@@ -61,7 +60,6 @@
**** xref:core/expressions/language-ref/constructors.adoc[]
**** xref:core/expressions/language-ref/variables.adoc[]
**** xref:core/expressions/language-ref/functions.adoc[]
**** xref:core/expressions/language-ref/varargs.adoc[]
**** xref:core/expressions/language-ref/bean-references.adoc[]
**** xref:core/expressions/language-ref/operator-ternary.adoc[]
**** xref:core/expressions/language-ref/operator-elvis.adoc[]
@@ -100,9 +98,9 @@
*** xref:core/aop-api/autoproxy.adoc[]
*** xref:core/aop-api/targetsource.adoc[]
*** xref:core/aop-api/extensibility.adoc[]
** xref:core/resilience.adoc[]
** xref:core/null-safety.adoc[]
** xref:core/databuffer-codec.adoc[]
** xref:core/spring-jcl.adoc[]
** xref:core/aot.adoc[]
** xref:core/appendix.adoc[]
*** xref:core/appendix/xsd-schemas.adoc[]
@@ -162,6 +160,7 @@
**** xref:web/webmvc/mvc-servlet/exceptionhandlers.adoc[]
**** xref:web/webmvc/mvc-servlet/viewresolver.adoc[]
**** xref:web/webmvc/mvc-servlet/localeresolver.adoc[]
**** xref:web/webmvc/mvc-servlet/themeresolver.adoc[]
**** xref:web/webmvc/mvc-servlet/multipart.adoc[]
**** xref:web/webmvc/mvc-servlet/logging.adoc[]
*** xref:web/webmvc/filters.adoc[]
@@ -197,9 +196,7 @@
*** xref:web/webmvc-functional.adoc[]
*** xref:web/webmvc/mvc-uri-building.adoc[]
*** xref:web/webmvc/mvc-ann-async.adoc[]
*** xref:web/webmvc/mvc-range.adoc[]
*** xref:web/webmvc-cors.adoc[]
*** xref:web/webmvc-versioning.adoc[]
*** xref:web/webmvc/mvc-ann-rest-exceptions.adoc[]
*** xref:web/webmvc/mvc-security.adoc[]
*** xref:web/webmvc/mvc-caching.adoc[]
@@ -228,7 +225,6 @@
**** xref:web/webmvc/mvc-config/static-resources.adoc[]
**** xref:web/webmvc/mvc-config/default-servlet-handler.adoc[]
**** xref:web/webmvc/mvc-config/path-matching.adoc[]
**** xref:web/webmvc/mvc-config/api-version.adoc[]
**** xref:web/webmvc/mvc-config/advanced-java.adoc[]
**** xref:web/webmvc/mvc-config/advanced-xml.adoc[]
*** xref:web/webmvc/mvc-http2.adoc[]
@@ -295,9 +291,7 @@
**** xref:web/webflux/controller/ann-advice.adoc[]
*** xref:web/webflux-functional.adoc[]
*** xref:web/webflux/uri-building.adoc[]
*** xref:web/webflux/range.adoc[]
*** xref:web/webflux-cors.adoc[]
*** xref:web/webflux-versioning.adoc[]
*** xref:web/webflux/ann-rest-exceptions.adoc[]
*** xref:web/webflux/security.adoc[]
*** xref:web/webflux/caching.adoc[]
@@ -314,7 +308,7 @@
*** xref:web/webflux-webclient/client-context.adoc[]
*** xref:web/webflux-webclient/client-synchronous.adoc[]
*** xref:web/webflux-webclient/client-testing.adoc[]
** xref:web/webflux-http-service-client.adoc[]
** xref:web/webflux-http-interface-client.adoc[]
** xref:web/webflux-websocket.adoc[]
** xref:web/webflux-test.adoc[]
** xref:rsocket.adoc[]
@@ -355,7 +349,6 @@
*** xref:testing/testcontext-framework/support-classes.adoc[]
*** xref:testing/testcontext-framework/aot.adoc[]
** xref:testing/webtestclient.adoc[]
** xref:testing/resttestclient.adoc[]
** xref:testing/mockmvc.adoc[]
*** xref:testing/mockmvc/overview.adoc[]
*** xref:testing/mockmvc/setup-options.adoc[]
@@ -439,8 +432,8 @@
*** xref:integration/cache/plug.adoc[]
*** xref:integration/cache/specific-config.adoc[]
** xref:integration/observability.adoc[]
** xref:integration/aot-cache.adoc[]
** xref:integration/checkpoint-restore.adoc[]
** xref:integration/cds.adoc[]
** xref:integration/appendix.adoc[]
* xref:languages.adoc[]
** xref:languages/kotlin.adoc[]
@@ -449,13 +442,14 @@
*** xref:languages/kotlin/null-safety.adoc[]
*** xref:languages/kotlin/classes-interfaces.adoc[]
*** xref:languages/kotlin/annotations.adoc[]
*** xref:languages/kotlin/bean-registration-dsl.adoc[]
*** xref:languages/kotlin/bean-definition-dsl.adoc[]
*** xref:languages/kotlin/web.adoc[]
*** xref:languages/kotlin/coroutines.adoc[]
*** xref:languages/kotlin/spring-projects-in.adoc[]
*** xref:languages/kotlin/getting-started.adoc[]
*** xref:languages/kotlin/resources.adoc[]
** xref:languages/groovy.adoc[]
** xref:languages/dynamic.adoc[]
* xref:appendix.adoc[]
* {spring-framework-docs-root}/{spring-version}/javadoc-api/[Java API,window=_blank, role=link-external]
* {spring-framework-api-kdoc}/[Kotlin API,window=_blank, role=link-external]
@@ -92,25 +92,11 @@ the repeated JNDI lookup overhead. See
{spring-framework-api}++/jndi/JndiLocatorDelegate.html#IGNORE_JNDI_PROPERTY_NAME++[`JndiLocatorDelegate`]
for details.
| `spring.locking.strict`
| Instructs Spring to enforce strict locking during bean creation, rather than the mix of
strict and lenient locking that 6.2 applies by default. See
{spring-framework-api}++/beans/factory/support/DefaultListableBeanFactory.html#STRICT_LOCKING_PROPERTY_NAME++[`DefaultListableBeanFactory`]
for details.
| `spring.objenesis.ignore`
| Instructs Spring to ignore Objenesis, not even attempting to use it. See
{spring-framework-api}++/objenesis/SpringObjenesis.html#IGNORE_OBJENESIS_PROPERTY_NAME++[`SpringObjenesis`]
for details.
| `spring.placeholder.escapeCharacter.default`
| The default escape character for property placeholder support. If not set, `'\'` will
be used. Can be set to a custom escape character or an empty string to disable support
for an escape character. The default escape character be explicitly overridden in
`PropertySourcesPlaceholderConfigurer` and subclasses of `AbstractPropertyResolver`. See
{spring-framework-api}++/core/env/AbstractPropertyResolver.html#DEFAULT_PLACEHOLDER_ESCAPE_CHARACTER_PROPERTY_NAME++[`AbstractPropertyResolver`]
for details.
| `spring.test.aot.processing.failOnError`
| A boolean flag that controls whether errors encountered during AOT processing in the
_Spring TestContext Framework_ should result in an exception that fails the overall process.
@@ -17,3 +17,14 @@ is also provided.
AOT processing can be used to optimize your application ahead-of-time. It is typically
used for native image deployment using GraalVM.
@@ -6,3 +6,7 @@ The previous chapter described the Spring's support for AOP with @AspectJ and sc
aspect definitions. In this chapter, we discuss the lower-level Spring AOP APIs. For common
applications, we recommend the use of Spring AOP with AspectJ pointcuts as described in the
previous chapter.
@@ -4,6 +4,7 @@
Now we can examine how Spring AOP handles advice.
[[aop-api-advice-lifecycle]]
== Advice Lifecycles
@@ -21,20 +22,22 @@ the advice adds state to the proxied object.
You can use a mix of shared and per-instance advice in the same AOP proxy.
[[aop-api-advice-types]]
== Advice Types in Spring
Spring provides several advice types and is extensible to support
arbitrary advice types. This section describes the basic concepts and standard advice types.
[[aop-api-advice-around]]
=== Interception Around Advice
The most fundamental advice type in Spring is _interception around advice_.
The most fundamental advice type in Spring is interception around advice.
Spring is compliant with the AOP Alliance interface for around advice that uses method
interception. Classes that implement around advice should therefore implement the
following `MethodInterceptor` interface from the `org.aopalliance.intercept` package:
Spring is compliant with the AOP `Alliance` interface for around advice that uses method
interception. Classes that implement `MethodInterceptor` and that implement around advice should also implement the
following interface:
[source,java,indent=0,subs="verbatim,quotes"]
----
@@ -46,8 +49,8 @@ following `MethodInterceptor` interface from the `org.aopalliance.intercept` pac
The `MethodInvocation` argument to the `invoke()` method exposes the method being
invoked, the target join point, the AOP proxy, and the arguments to the method. The
`invoke()` method should return the invocation's result: typically the return value of
the join point.
`invoke()` method should return the invocation's result: the return value of the join
point.
The following example shows a simple `MethodInterceptor` implementation:
@@ -61,9 +64,9 @@ Java::
public Object invoke(MethodInvocation invocation) throws Throwable {
System.out.println("Before: invocation=[" + invocation + "]");
Object result = invocation.proceed();
Object rval = invocation.proceed();
System.out.println("Invocation returned");
return result;
return rval;
}
}
----
@@ -76,9 +79,9 @@ Kotlin::
override fun invoke(invocation: MethodInvocation): Any {
println("Before: invocation=[$invocation]")
val result = invocation.proceed()
val rval = invocation.proceed()
println("Invocation returned")
return result
return rval
}
}
----
@@ -98,10 +101,11 @@ you are likely to want to run the aspect in another AOP framework. Note that poi
are not currently interoperable between frameworks, and the AOP Alliance does not
currently define pointcut interfaces.
[[aop-api-advice-before]]
=== Before Advice
A simpler advice type is a _before advice_. This does not need a `MethodInvocation`
A simpler advice type is a before advice. This does not need a `MethodInvocation`
object, since it is called only before entering the method.
The main advantage of a before advice is that there is no need to invoke the `proceed()`
@@ -118,6 +122,10 @@ The following listing shows the `MethodBeforeAdvice` interface:
}
----
(Spring's API design would allow for
field before advice, although the usual objects apply to field interception and it is
unlikely for Spring to ever implement it.)
Note that the return type is `void`. Before advice can insert custom behavior before the join
point runs but cannot change the return value. If a before advice throws an
exception, it stops further execution of the interceptor chain. The exception
@@ -164,13 +172,14 @@ Kotlin::
TIP: Before advice can be used with any pointcut.
[[aop-api-advice-throws]]
=== Throws Advice
_Throws advice_ is invoked after the return of the join point if the join point threw
Throws advice is invoked after the return of the join point if the join point threw
an exception. Spring offers typed throws advice. Note that this means that the
`org.springframework.aop.ThrowsAdvice` interface does not contain any methods. It is a
marker interface identifying that the given object implements one or more typed throws
tag interface identifying that the given object implements one or more typed throws
advice methods. These should be in the following form:
[source,java,indent=0,subs="verbatim,quotes"]
@@ -180,10 +189,9 @@ advice methods. These should be in the following form:
Only the last argument is required. The method signatures may have either one or four
arguments, depending on whether the advice method is interested in the method and
arguments. The next two listings show classes that are examples of throws advice.
arguments. The next two listing show classes that are examples of throws advice.
The following advice is invoked if a `RemoteException` is thrown (including subclasses of
`RemoteException`):
The following advice is invoked if a `RemoteException` is thrown (including from subclasses):
[tabs]
======
@@ -212,9 +220,9 @@ Kotlin::
----
======
Unlike the preceding advice, the next example declares four arguments, so that it has
access to the invoked method, method arguments, and target object. The following advice
is invoked if a `ServletException` is thrown:
Unlike the preceding
advice, the next example declares four arguments, so that it has access to the invoked method, method
arguments, and target object. The following advice is invoked if a `ServletException` is thrown:
[tabs]
======
@@ -292,10 +300,11 @@ exception that is incompatible with the target method's signature!_
TIP: Throws advice can be used with any pointcut.
[[aop-api-advice-after-returning]]
=== After Returning Advice
An _after returning advice_ in Spring must implement the
An after returning advice in Spring must implement the
`org.springframework.aop.AfterReturningAdvice` interface, which the following listing shows:
[source,java,indent=0,subs="verbatim,quotes"]
@@ -355,10 +364,11 @@ thrown up the interceptor chain instead of the return value.
TIP: After returning advice can be used with any pointcut.
[[aop-api-advice-introduction]]
=== Introduction Advice
Spring treats _introduction advice_ as a special kind of interception advice.
Spring treats introduction advice as a special kind of interception advice.
Introduction requires an `IntroductionAdvisor` and an `IntroductionInterceptor` that
implement the following interface:
@@ -494,6 +504,7 @@ Java::
}
return super.invoke(invocation);
}
}
----
@@ -523,6 +534,7 @@ Kotlin::
}
return super.invoke(invocation)
}
}
----
======
@@ -573,3 +585,8 @@ We can apply this advisor programmatically by using the `Advised.addAdvisor()` m
(the recommended way) in XML configuration, as any other advisor. All proxy creation
choices discussed below, including "`auto proxy creators,`" correctly handle introductions
and stateful mixins.
@@ -142,3 +142,7 @@ case, the `Advised` `isFrozen()` method returns `true`, and any attempts to modi
advice through addition or removal results in an `AopConfigException`. The ability
to freeze the state of an advised object is useful in some cases (for example, to
prevent calling code removing a security interceptor).
@@ -14,3 +14,7 @@ It is possible to mix advisor and advice types in Spring in the same AOP proxy.
example, you could use an interception around advice, throws advice, and before advice in
one proxy configuration. Spring automatically creates the necessary interceptor
chain.
@@ -19,12 +19,14 @@ There are two ways to do this:
auto-proxy creation driven by source-level metadata attributes.
[[aop-autoproxy-choices]]
== Auto-proxy Bean Definitions
This section covers the auto-proxy creators provided by the
`org.springframework.aop.framework.autoproxy` package.
[[aop-api-autoproxy]]
=== `BeanNameAutoProxyCreator`
@@ -59,6 +61,7 @@ automatically created by the `BeanNameAutoProxyCreator`. The same advice is appl
to all matching beans. Note that, if advisors are used (rather than the interceptor in
the preceding example), the pointcuts may apply differently to different beans.
[[aop-api-autoproxy-default]]
=== `DefaultAdvisorAutoProxyCreator`
@@ -122,3 +125,7 @@ differently configured, AdvisorAutoProxyCreators in the same factory) and orderi
Advisors can implement the `org.springframework.core.Ordered` interface to ensure
correct ordering if this is an issue. The `TransactionAttributeSourceAdvisor` used in the
preceding example has a configurable order value. The default setting is unordered.
@@ -65,3 +65,7 @@ that, if you have a (parent) bean definition that you intend to use only as a te
and this definition specifies a class, you must make sure to set the `abstract`
attribute to `true`. Otherwise, the application context actually tries to
pre-instantiate it.
@@ -14,6 +14,7 @@ the pointcuts, any advice that applies, and their ordering. However, there are s
options that are preferable if you do not need such control.
[[aop-pfb-1]]
== Basics
@@ -31,6 +32,7 @@ application objects (besides the target, which should be available in any AOP
framework), benefiting from all the pluggability provided by Dependency Injection.
[[aop-pfb-2]]
== JavaBean Properties
@@ -85,6 +87,7 @@ to be applied. You can find an example of using this feature in xref:core/aop-ap
`false`.
[[aop-pfb-proxy-types]]
== JDK- and CGLIB-based proxies
@@ -134,6 +137,7 @@ interface that the target class implements to the `proxyInterfaces` property. Ho
it is significantly less work and less prone to typographical errors.
[[aop-api-proxying-intf]]
== Proxying Interfaces
@@ -259,6 +263,7 @@ However, there are times when being able to obtain the un-advised target from th
factory might actually be an advantage (for example, in certain test scenarios).
[[aop-api-proxying-class]]
== Proxying Classes
@@ -297,6 +302,7 @@ There is little performance difference between CGLIB proxies and dynamic proxies
Performance should not be a decisive consideration in this case.
[[aop-global-advisors]]
== Using "`Global`" Advisors
@@ -319,3 +325,7 @@ two global advisors:
<bean id="global_debug" class="org.springframework.aop.interceptor.DebugInterceptor"/>
<bean id="global_performance" class="org.springframework.aop.interceptor.PerformanceMonitorInterceptor"/>
----
@@ -4,6 +4,7 @@
This section describes how Spring handles the crucial pointcut concept.
[[aop-api-concepts]]
== Concepts
@@ -68,6 +69,7 @@ TIP: If possible, try to make pointcuts static, allowing the AOP framework to ca
results of pointcut evaluation when an AOP proxy is created.
[[aop-api-pointcut-ops]]
== Operations on Pointcuts
@@ -82,6 +84,7 @@ You can compose pointcuts by using the static methods in the
expressions is usually a simpler approach.
[[aop-api-pointcuts-aspectj]]
== AspectJ Expression Pointcuts
@@ -92,12 +95,14 @@ uses an AspectJ-supplied library to parse an AspectJ pointcut expression string.
See the xref:core/aop.adoc[previous chapter] for a discussion of supported AspectJ pointcut primitives.
[[aop-api-pointcuts-impls]]
== Convenience Pointcut Implementations
Spring provides several convenient pointcut implementations. You can use some of them
directly; others are intended to be subclassed in application-specific pointcuts.
[[aop-api-pointcuts-static]]
=== Static Pointcuts
@@ -141,6 +146,7 @@ You can use `RegexpMethodPointcutAdvisor` with any `Advice` type.
An important type of static pointcut is a metadata-driven pointcut. This uses the
values of metadata attributes (typically, source-level metadata).
[[aop-api-pointcuts-dynamic]]
=== Dynamic pointcuts
@@ -166,6 +172,7 @@ other dynamic pointcuts. In Java 1.4, the cost is about five times that of other
pointcuts.
[[aop-api-pointcuts-superclasses]]
== Pointcut Superclasses
@@ -207,6 +214,7 @@ There are also superclasses for dynamic pointcuts.
You can use custom pointcuts with any advice type.
[[aop-api-pointcuts-custom]]
== Custom Pointcuts
@@ -217,3 +225,7 @@ expression language, if you can.
NOTE: Later versions of Spring may offer support for "`semantic pointcuts`" as offered by JAC --
for example, "`all methods that change instance variables in the target object.`"
@@ -22,6 +22,7 @@ rather than a singleton bean definition. This allows Spring to create a new targ
instance when required.
[[aop-ts-swap]]
== Hot-swappable Target Sources
@@ -76,6 +77,7 @@ use a `TargetSource`), any `TargetSource` can be used in conjunction with
arbitrary advice.
[[aop-ts-pool]]
== Pooling Target Sources
@@ -87,12 +89,14 @@ A crucial difference between Spring pooling and SLSB pooling is that Spring pool
be applied to any POJO. As with Spring in general, this service can be applied in a
non-invasive way.
Spring provides support for Commons Pool 2, which provides a
Spring provides support for Commons Pool 2.2, which provides a
fairly efficient pooling implementation. You need the `commons-pool` Jar on your
application's classpath to use this feature. You can also subclass
`org.springframework.aop.target.AbstractPoolingTargetSource` to support any other
pooling API.
NOTE: Commons Pool 1.5+ is also supported but is deprecated as of Spring Framework 4.2.
The following listing shows an example configuration:
[source,xml,indent=0,subs="verbatim,quotes"]
@@ -171,6 +175,7 @@ Simpler pooling is available by using auto-proxying. You can set the `TargetSour
used by any auto-proxy creator.
[[aop-ts-prototype]]
== Prototype Target Sources
@@ -195,6 +200,7 @@ The only property is the name of the target bean. Inheritance is used in the
source, the target bean must be a prototype bean definition.
[[aop-ts-threadlocal]]
== `ThreadLocal` Target Sources
@@ -220,3 +226,7 @@ always remember to correctly set and unset (where the latter involves a call to
any case, since not unsetting it might result in problematic behavior. Spring's
`ThreadLocal` support does this for you and should always be considered in favor of using
`ThreadLocal` instances without other proper handling code.
@@ -32,3 +32,7 @@ AOP is used in the Spring Framework to:
NOTE: If you are interested only in generic declarative services or other pre-packaged
declarative middleware services such as pooling, you do not need to work directly with
Spring AOP, and can skip most of this chapter.
@@ -53,3 +53,7 @@ Kotlin::
======
See the {spring-framework-api}/aop/aspectj/annotation/AspectJProxyFactory.html[javadoc] for more information.
@@ -11,3 +11,6 @@ there is no dependency on the AspectJ compiler or weaver.
NOTE: Using the AspectJ compiler and weaver enables use of the full AspectJ language and
is discussed in xref:core/aop/using-aspectj.adoc[Using AspectJ with Spring Applications].
@@ -937,3 +937,5 @@ reflection for javac-compiled classes). Consider collapsing such advice methods
advice method per join point in each `@Aspect` class or refactor the pieces of advice into
separate `@Aspect` classes that you can order at the aspect level via `Ordered` or `@Order`.
====
@@ -32,3 +32,6 @@ stereotype annotation that qualifies, as per the rules of Spring's component sca
NOTE: In Spring AOP, aspects themselves cannot be the targets of advice from other
aspects. The `@Aspect` annotation on a class marks it as an aspect and, hence, excludes
it from auto-proxying.
@@ -18,8 +18,7 @@ call `proceed` multiple times. The following listing shows the basic aspect impl
include-code::./ConcurrentOperationExecutor[tag=snippet,indent=0]
`@Around("com.xyz.CommonPointcuts.businessService()")` references the `businessService` named pointcut defined in
xref:core/aop/ataspectj/pointcuts.adoc#aop-common-pointcuts[Sharing Named Pointcut Definitions].
`@Around("com.xyz.CommonPointcuts.businessService()")` references the `businessService` named pointcut defined in xref:core/aop/ataspectj/pointcuts.adoc#aop-common-pointcuts[Sharing Named Pointcut Definitions].
Note that the aspect implements the `Ordered` interface so that we can set the precedence of
the aspect higher than the transaction advice (we want a fresh transaction each time we
@@ -60,3 +60,6 @@ Programming Guide for more information on `per` clauses.
The `pertarget` instantiation model works in exactly the same way as `perthis`, but it
creates one aspect instance for each unique target object at matched join points.
@@ -75,3 +75,5 @@ Kotlin::
val usageTracked = context.getBean<UsageTracked>("myService")
----
======
@@ -581,3 +581,6 @@ performance (time and memory used), due to extra processing and analysis. Scopin
designators are very fast to match, and using them means AspectJ can very quickly
dismiss groups of join points that should not be further processed. A good
pointcut should always include one if possible.
@@ -8,6 +8,7 @@ decisions are influenced by a number of factors including application requiremen
development tools, and team familiarity with AOP.
[[aop-spring-or-aspectj]]
== Spring AOP or Full AspectJ?
@@ -30,6 +31,7 @@ the @AspectJ style, sticking with regular Java compilation in your IDE, and addi
an aspect weaving phase to your build script.
[[aop-ataspectj-or-xml]]
== @AspectJ or XML for Spring AOP?
@@ -105,3 +107,7 @@ Spring AOP and by AspectJ. So, if you later decide you need the capabilities of
to implement additional requirements, you can easily migrate to a classic AspectJ setup.
In general, the Spring team prefers the @AspectJ style for custom aspects beyond simple
configuration of enterprise services.
@@ -73,3 +73,7 @@ it from older technologies offering only interception. Pointcuts enable advice t
targeted independently of the object-oriented hierarchy. For example, you can apply an
around advice providing declarative transaction management to a set of methods that span
multiple objects (such as all business operations in the service layer).
@@ -14,5 +14,9 @@ need to advise a method that is not declared on an interface or where you need t
pass a proxied object to a method as a concrete type.
It is important to grasp the fact that Spring AOP is proxy-based. See
xref:core/aop/proxying.adoc#aop-understanding-aop-proxies[Understanding AOP Proxies]
for a thorough examination of exactly what this implementation detail actually means.
xref:core/aop/proxying.adoc#aop-understanding-aop-proxies[Understanding AOP Proxies] for a thorough examination of exactly what this
implementation detail actually means.
@@ -52,6 +52,10 @@ configuration-style approach. The fact that this chapter chooses to introduce th
@AspectJ-style approach first should not be taken as an indication that the Spring team
favors the @AspectJ annotation-style approach over the Spring XML configuration-style.
See xref:core/aop/choosing.adoc[Choosing which AOP Declaration Style to Use] for a more
complete discussion of the advantages and disadvantages of each style.
See xref:core/aop/choosing.adoc[Choosing which AOP Declaration Style to Use] for a more complete discussion of the advantages and disadvantages of
each style.
====
@@ -6,3 +6,7 @@ It is perfectly possible to mix @AspectJ style aspects by using the auto-proxyin
schema-defined `<aop:aspect>` aspects, `<aop:advisor>` declared advisors, and even proxies
and interceptors in other styles in the same configuration. All of these are implemented
by using the same underlying support mechanism and can co-exist without any difficulty.
@@ -28,10 +28,6 @@ you can do so. However, you should consider the following issues:
deploying on the module path. Such cases require a JVM bootstrap flag
`--add-opens=java.base/java.lang=ALL-UNNAMED` which is not available for modules.
[[aop-forcing-proxy-types]]
== Forcing Specific AOP Proxy Types
To force the use of CGLIB proxies, set the value of the `proxy-target-class` attribute
of the `<aop:config>` element to true, as follows:
@@ -64,23 +60,6 @@ To be clear, using `proxy-target-class="true"` on `<tx:annotation-driven/>`,
proxies _for all three of them_.
====
`@EnableAspectJAutoProxy`, `@EnableTransactionManagement` and related configuration
annotations offer a corresponding `proxyTargetClass` attribute. These are collapsed
into a single unified auto-proxy creator too, effectively applying the _strongest_
proxy settings at runtime. As of 7.0, this applies to individual proxy processors
as well, for example `@EnableAsync`, consistently participating in unified global
default settings for all auto-proxying attempts in a given application.
The global default proxy type may differ between setups. While the core framework
suggests interface-based proxies by default, Spring Boot may - depending on
configuration properties - enable class-based proxies by default.
As of 7.0, forcing a specific proxy type for individual beans is possible through
the `@Proxyable` annotation on a given `@Bean` method or `@Component` class, with
`@Proxyable(INTERFACES)` or `@Proxyable(TARGET_CLASS)` overriding any globally
configured default. For very specific purposes, you may even specify the proxy
interface(s) to use through `@Proxyable(interfaces=...)`, limiting the exposure
to selected interfaces rather than all interfaces that the target bean implements.
[[aop-understanding-aop-proxies]]
@@ -312,3 +291,4 @@ Kotlin::
NOTE: AspectJ compile-time weaving and load-time weaving do not have this self-invocation
issue because they apply advice within the bytecode instead of via a proxy.
@@ -26,6 +26,7 @@ use either only the `<aop:config>` style or only the `AutoProxyCreator` style an
never mix them.
[[aop-schema-declaring-an-aspect]]
== Declaring an Aspect
@@ -53,6 +54,7 @@ The bean that backs the aspect (`aBean` in this case) can of course be configure
dependency injected just like any other Spring bean.
[[aop-schema-pointcuts]]
== Declaring a Pointcut
@@ -175,7 +177,9 @@ follows:
Note that pointcuts defined in this way are referred to by their XML `id` and cannot be
used as named pointcuts to form composite pointcuts. The named pointcut support in the
schema-based definition style is thus more limited than that offered by the @AspectJ style.
schema-based definition style is thus more limited than that offered by the @AspectJ
style.
[[aop-schema-advice]]
@@ -184,6 +188,7 @@ schema-based definition style is thus more limited than that offered by the @Asp
The schema-based AOP support uses the same five kinds of advice as the @AspectJ style, and they have
exactly the same semantics.
[[aop-schema-advice-before]]
=== Before Advice
@@ -232,6 +237,7 @@ that contains the advice. Before a data access operation is performed (a method
join point matched by the pointcut expression), the `doAccessCheck` method on the aspect
bean is invoked.
[[aop-schema-advice-after-returning]]
=== After Returning Advice
@@ -289,6 +295,7 @@ Kotlin::
----
======
[[aop-schema-advice-after-throwing]]
=== After Throwing Advice
@@ -346,6 +353,7 @@ Kotlin::
----
======
[[aop-schema-advice-after-finally]]
=== After (Finally) Advice
@@ -364,6 +372,7 @@ You can declare it by using the `after` element, as the following example shows:
</aop:aspect>
----
[[aop-schema-advice-around]]
=== Around Advice
@@ -435,18 +444,17 @@ Kotlin::
----
======
[[aop-schema-params]]
=== Advice Parameters
The schema-based declaration style supports fully typed advice in the same way as
described for the @AspectJ support -- by matching pointcut parameters by name against
advice method parameters. See
xref:core/aop/ataspectj/advice.adoc#aop-ataspectj-advice-params[Advice Parameters] for details.
If you wish to explicitly specify argument names for the advice methods (not relying on the
advice method parameters. See xref:core/aop/ataspectj/advice.adoc#aop-ataspectj-advice-params[Advice Parameters] for details. If you wish
to explicitly specify argument names for the advice methods (not relying on the
detection strategies previously described), you can do so by using the `arg-names`
attribute of the advice element, which is treated in the same manner as the `argNames`
attribute in an advice annotation (as described in
xref:core/aop/ataspectj/advice.adoc#aop-ataspectj-advice-params-names[Determining Argument Names]).
attribute in an advice annotation (as described in xref:core/aop/ataspectj/advice.adoc#aop-ataspectj-advice-params-names[Determining Argument Names]).
The following example shows how to specify an argument name in XML:
[source,xml,indent=0,subs="verbatim"]
@@ -456,8 +464,7 @@ The following example shows how to specify an argument name in XML:
method="audit"
arg-names="auditable" />
----
<1> References the `publicMethod` named pointcut defined in
xref:core/aop/ataspectj/pointcuts.adoc#aop-pointcuts-combining[Combining Pointcut Expressions].
<1> References the `publicMethod` named pointcut defined in xref:core/aop/ataspectj/pointcuts.adoc#aop-pointcuts-combining[Combining Pointcut Expressions].
The `arg-names` attribute accepts a comma-delimited list of parameter names.
@@ -638,15 +645,15 @@ ms % Task name
00000 ? execution(getFoo)
----
[[aop-ordering]]
=== Advice Ordering
When multiple pieces of advice need to run at the same join point (executing method)
the ordering rules are as described in
xref:core/aop/ataspectj/advice.adoc#aop-ataspectj-advice-ordering[Advice Ordering]. The
precedence between aspects is determined via the `order` attribute in the `<aop:aspect>`
element or by either adding the `@Order` annotation to the bean that backs the aspect
or by having the bean implement the `Ordered` interface.
the ordering rules are as described in xref:core/aop/ataspectj/advice.adoc#aop-ataspectj-advice-ordering[Advice Ordering]. The precedence
between aspects is determined via the `order` attribute in the `<aop:aspect>` element or
by either adding the `@Order` annotation to the bean that backs the aspect or by having
the bean implement the `Ordered` interface.
[NOTE]
====
@@ -669,6 +676,7 @@ at the aspect level.
====
[[aop-schema-introductions]]
== Introductions
@@ -748,6 +756,7 @@ Kotlin::
======
[[aop-schema-instantiation-models]]
== Aspect Instantiation Models
@@ -755,6 +764,7 @@ The only supported instantiation model for schema-defined aspects is the singlet
model. Other instantiation models may be supported in future releases.
[[aop-schema-advisors]]
== Advisors
@@ -762,8 +772,7 @@ The concept of "advisors" comes from the AOP support defined in Spring
and does not have a direct equivalent in AspectJ. An advisor is like a small
self-contained aspect that has a single piece of advice. The advice itself is
represented by a bean and must implement one of the advice interfaces described in
xref:core/aop-api/advice.adoc#aop-api-advice-types[Advice Types in Spring].
Advisors can take advantage of AspectJ pointcut expressions.
xref:core/aop-api/advice.adoc#aop-api-advice-types[Advice Types in Spring]. Advisors can take advantage of AspectJ pointcut expressions.
Spring supports the advisor concept with the `<aop:advisor>` element. You most
commonly see it used in conjunction with transactional advice, which also has its own
@@ -796,6 +805,7 @@ To define the precedence of an advisor so that the advice can participate in ord
use the `order` attribute to define the `Ordered` value of the advisor.
[[aop-schema-example]]
== An AOP Schema Example
@@ -971,3 +981,7 @@ pointcut expression so that only `@Idempotent` operations match, as follows:
expression="execution(* com.xyz.service.*.*(..)) and
@annotation(com.xyz.service.Idempotent)"/>
----
@@ -8,14 +8,12 @@ alone.
Spring ships with a small AspectJ aspect library, which is available stand-alone in your
distribution as `spring-aspects.jar`. You need to add this to your classpath in order
to use the aspects in it.
xref:core/aop/using-aspectj.adoc#aop-atconfigurable[Using AspectJ to Dependency Inject Domain Objects with Spring]
and xref:core/aop/using-aspectj.adoc#aop-ajlib-other[Other Spring aspects for AspectJ]
discuss the content of this library and how you can use it.
xref:core/aop/using-aspectj.adoc#aop-aj-configure[Configuring AspectJ Aspects by Using Spring IoC]
discusses how to dependency inject AspectJ aspects that are woven using the AspectJ compiler. Finally,
xref:core/aop/using-aspectj.adoc#aop-aj-ltw[Load-time Weaving with AspectJ in the Spring Framework]
provides an introduction to load-time weaving for Spring applications that use AspectJ.
to use the aspects in it. xref:core/aop/using-aspectj.adoc#aop-atconfigurable[Using AspectJ to Dependency Inject Domain Objects with Spring] and xref:core/aop/using-aspectj.adoc#aop-ajlib-other[Other Spring aspects for AspectJ] discuss the
content of this library and how you can use it. xref:core/aop/using-aspectj.adoc#aop-aj-configure[Configuring AspectJ Aspects by Using Spring IoC] discusses how to
dependency inject AspectJ aspects that are woven using the AspectJ compiler. Finally,
xref:core/aop/using-aspectj.adoc#aop-aj-ltw[Load-time Weaving with AspectJ in the Spring Framework] provides an introduction to load-time weaving for Spring applications
that use AspectJ.
[[aop-atconfigurable]]
@@ -208,6 +206,7 @@ not use `@Configurable` on bean classes that are registered as regular Spring be
with the container. Doing so results in double initialization, once through the
container and once through the aspect.
[[aop-configurable-testing]]
=== Unit Testing `@Configurable` Objects
@@ -220,6 +219,7 @@ you can still unit test outside of the container as normal, but you see a warnin
message each time that you construct a `@Configurable` object indicating that it has
not been configured by Spring.
[[aop-configurable-container]]
=== Working with Multiple Application Contexts
@@ -249,6 +249,7 @@ is added only to the container-wide classpath (and hence loaded by the shared pa
not what you want).
[[aop-ajlib-other]]
== Other Spring aspects for AspectJ
@@ -301,6 +302,7 @@ fully qualified class names:
----
[[aop-aj-configure]]
== Configuring AspectJ Aspects by Using Spring IoC
@@ -355,6 +357,7 @@ results in the creation of Spring AOP proxies. The @AspectJ style of aspect
declaration is being used here, but the AspectJ runtime is not involved.
[[aop-aj-ltw]]
== Load-time Weaving with AspectJ in the Spring Framework
@@ -388,6 +391,7 @@ LTW that uses Spring, followed by detailed specifics about elements introduced i
example. For a complete example, see the
{petclinic-github-org}/spring-framework-petclinic[Petclinic sample application based on Spring Framework].
[[aop-aj-ltw-first-example]]
=== A First Example
@@ -673,6 +677,7 @@ nice example of a development-time aspect that developers can use during develop
and then easily exclude from builds of the application being deployed
into UAT or production.
[[aop-aj-ltw-the-aspects]]
=== Aspects
@@ -681,6 +686,7 @@ either the AspectJ language itself, or you can write your aspects in the @Aspect
Your aspects are then both valid AspectJ and Spring AOP aspects.
Furthermore, the compiled aspect classes need to be available on the classpath.
[[aop-aj-ltw-aop_dot_xml]]
=== `META-INF/aop.xml`
@@ -710,6 +716,7 @@ The structure and contents of this file is detailed in the LTW part of the
{aspectj-docs-devguide}/ltw-configuration.html[AspectJ reference
documentation]. Because the `aop.xml` file is 100% AspectJ, we do not describe it further here.
[[aop-aj-ltw-libraries]]
=== Required libraries (JARS)
@@ -724,6 +731,7 @@ If you use the xref:core/aop/using-aspectj.adoc#aop-aj-ltw-environments-generic[
* `spring-instrument.jar`
[[aop-aj-ltw-spring]]
=== Spring Configuration
@@ -823,6 +831,7 @@ possible values:
then AspectJ weaving is on. Otherwise, it is off. This is the default value.
|===
[[aop-aj-ltw-environments]]
=== Environment-specific Configuration
@@ -871,3 +880,7 @@ Note that this requires modification of the JVM launch script, which may prevent
from using this in application server environments (depending on your server and your
operation policies). That said, for one-app-per-JVM deployments such as standalone
Spring Boot applications, you typically control the entire JVM setup in any case.
+46 -109
View File
@@ -5,7 +5,6 @@ This chapter covers Spring's Ahead of Time (AOT) optimizations.
For AOT support specific to integration tests, see xref:testing/testcontext-framework/aot.adoc[Ahead of Time Support for Tests].
[[aot.introduction]]
== Introduction to Ahead of Time Optimizations
@@ -18,9 +17,9 @@ Applying such optimizations early implies the following restrictions:
* The beans defined in your application cannot change at runtime, meaning:
** `@Profile`, in particular profile-specific configuration, needs to be chosen at build time and is automatically enabled at runtime when AOT is enabled.
** `Environment` properties that impact the presence of a bean (`@Conditional`) are only considered at build time.
* Bean definitions with instance suppliers (lambdas or method references) cannot be transformed ahead of time.
* Bean definitions with instance suppliers (lambdas or method references) cannot be transformed ahead-of-time.
* Beans registered as singletons (using `registerSingleton`, typically from
`ConfigurableListableBeanFactory`) cannot be transformed ahead of time either.
`ConfigurableListableBeanFactory`) cannot be transformed ahead-of-time either.
* As we cannot rely on the instance, make sure that the bean type is as precise as
possible.
@@ -36,7 +35,6 @@ A Spring AOT processed application typically generates:
NOTE: At the moment, AOT is focused on allowing Spring applications to be deployed as native images using GraalVM.
We intend to support more JVM-based use cases in future generations.
[[aot.basics]]
== AOT Engine Overview
@@ -53,7 +51,6 @@ The `RuntimeHints` instance can also be used to generate the relevant GraalVM na
Those steps are covered in greater detail in the sections below.
[[aot.refresh]]
== Refresh for AOT Processing
@@ -91,7 +88,6 @@ This makes sure to create any proxy that will be required at runtime.
Once this part completes, the `BeanFactory` contains the bean definitions that are necessary for the application to run. It does not trigger bean instantiation but allows the AOT engine to inspect the beans that will be created at runtime.
[[aot.bean-factory-initialization-contributions]]
== Bean Factory Initialization AOT Contributions
@@ -110,10 +106,11 @@ Consequently, such a bean is automatically excluded from the AOT-optimized conte
[NOTE]
====
If a bean implements the `BeanFactoryInitializationAotProcessor` interface, the bean and **all** of its dependencies will be initialized during AOT processing.
We generally recommend that this interface is only implemented by infrastructure beans, such as a `BeanFactoryPostProcessor`, which have limited dependencies and are already initialized early in the bean factory lifecycle.
We generally recommend that this interface is only implemented by infrastructure beans such as `BeanFactoryPostProcessor` which have limited dependencies and are already initialized early in the bean factory lifecycle.
If such a bean is registered using an `@Bean` factory method, ensure the method is `static` so that its enclosing `@Configuration` class does not have to be initialized.
====
[[aot.bean-registration-contributions]]
=== Bean Registration AOT Contributions
@@ -130,7 +127,7 @@ Typically used when the bean definition needs to be tuned for specific features
[NOTE]
====
If a bean implements the `BeanRegistrationAotProcessor` interface, the bean and **all** of its dependencies will be initialized during AOT processing.
We generally recommend that this interface is only implemented by infrastructure beans, such as a `BeanFactoryPostProcessor`, which have limited dependencies and are already initialized early in the bean factory lifecycle.
We generally recommend that this interface is only implemented by infrastructure beans such as `BeanFactoryPostProcessor` which have limited dependencies and are already initialized early in the bean factory lifecycle.
If such a bean is registered using an `@Bean` factory method, ensure the method is `static` so that its enclosing `@Configuration` class does not have to be initialized.
====
@@ -222,23 +219,21 @@ NOTE: The exact code generated may differ depending on the exact nature of your
TIP: Each generated class is annotated with `org.springframework.aot.generate.Generated` to
identify them if they need to be excluded, for instance by static analysis tools.
The generated code above creates bean definitions equivalent to the `@Configuration` class, but in a direct way and without the use of reflection at all if possible.
The generated code above creates bean definitions equivalent to the `@Configuration` class, but in a direct way and without the use of reflection if at all possible.
There is a bean definition for `dataSourceConfiguration` and one for `dataSourceBean`.
When a `datasource` instance is required, a `BeanInstanceSupplier` is called.
This supplier invokes the `dataSource()` method on the `dataSourceConfiguration` bean.
[[aot.running]]
== Running with AOT Optimizations
AOT is a mandatory step to transform a Spring application to a native executable, so it
is automatically enabled when running within a native image. However it is also possible to use AOT optimizations
is automatically enabled when running in this mode. It is possible to use those optimizations
on the JVM by setting the `spring.aot.enabled` System property to `true`.
NOTE: When AOT optimizations are included, some decisions that have been made at build time
are hard coded in the application setup. For instance, profiles that have been enabled at
build time are automatically enabled at runtime as well.
NOTE: When AOT optimizations are included, some decisions that have been taken at build-time
are hard-coded in the application setup. For instance, profiles that have been enabled at
build-time are automatically enabled at runtime as well.
[[aot.bestpractices]]
== Best Practices
@@ -276,7 +271,7 @@ build time.
While your application may interact with an interface that a bean implements, it is still very important to declare the most precise type.
The AOT engine performs additional checks on the bean type, such as detecting the presence of `@Autowired` members or lifecycle callback methods.
For `@Configuration` classes, make sure that the return type of an `@Bean` factory method is as precise as possible.
For `@Configuration` classes, make sure that the return type of the factory `@Bean` method is as precise as possible.
Consider the following example:
[tabs]
@@ -310,11 +305,11 @@ Kotlin::
----
======
In the example above, the declared type for the `myInterface` bean is `MyInterface`.
During AOT processing, none of the usual post-processing will take `MyImplementation` into account.
For instance, if there is an annotated handler method on `MyImplementation` that the context should register, it will not be detected during AOT processing.
In the example above, the declared type for the `myInterface` bean is `MyInterface`.
None of the usual post-processing will take `MyImplementation` into account.
For instance, if there is an annotated handler method on `MyImplementation` that the context should register, it wont be detected upfront.
The example above should therefore be rewritten as follows:
The example above should be rewritten as follows:
[tabs]
======
@@ -353,7 +348,7 @@ If you are registering bean definitions programmatically, consider using `RootBe
=== Avoid Multiple Constructors
The container is able to choose the most appropriate constructor to use based on several candidates.
However, relying on that is not a best practice, and flagging the preferred constructor with `@Autowired` if necessary is preferred.
However, this is not a best practice and flagging the preferred constructor with `@Autowired` if necessary is preferred.
In case you are working on a code base that you cannot modify, you can set the {spring-framework-api}/beans/factory/support/AbstractBeanDefinition.html#PREFERRED_CONSTRUCTORS_ATTRIBUTE[`preferredConstructors` attribute] on the related bean definition to indicate which constructor should be used.
@@ -368,13 +363,13 @@ A good rule of thumb is to keep in mind that bean definitions are an abstraction
Rather than using such structures, decomposing to simple types or referring to a bean that is built as such is recommended.
As a last resort, you can implement your own `org.springframework.aot.generate.ValueCodeGenerator$Delegate`.
To use it, register its fully-qualified name in `META-INF/spring/aot.factories` using `org.springframework.aot.generate.ValueCodeGenerator$Delegate` as the key.
To use it, register its fully qualified name in `META-INF/spring/aot.factories` using the `Delegate` as the key.
[[aot.bestpractices.custom-arguments]]
=== Avoid Creating Beans with Custom Arguments
Spring AOT detects what needs to be done to create a bean and translates that into generated code that uses an instance supplier.
The container also supports creating a bean with {spring-framework-api}++/beans/factory/BeanFactory.html#getBean(java.lang.String,java.lang.Object...)++[custom arguments] which can lead to several issues with AOT:
Spring AOT detects what needs to be done to create a bean and translates that in generated code using an instance supplier.
The container also supports creating a bean with {spring-framework-api}++/beans/factory/BeanFactory.html#getBean(java.lang.String,java.lang.Object...)++[custom arguments] that leads to several issues with AOT:
. The custom arguments require dynamic introspection of a matching constructor or factory method.
Those arguments cannot be detected by AOT, so the necessary reflection hints will have to be provided manually.
@@ -401,7 +396,7 @@ for further information.
=== FactoryBean
`FactoryBean` should be used with care as it introduces an intermediate layer in terms of bean type resolution that may not be conceptually necessary.
As a rule of thumb, if a `FactoryBean` instance does not hold long-term state and is not needed at a later point at runtime, it should be replaced by a regular `@Bean` factory method, possibly with a `FactoryBean` adapter layer on top (for declarative configuration purposes).
As a rule of thumb, if the `FactoryBean` instance does not hold long-term state and is not needed at a later point in time at runtime, it should be replaced by a regular factory method, possibly with a `FactoryBean` adapter layer on top (for declarative configuration purposes).
If your `FactoryBean` implementation does not resolve the object type (i.e. `T`), extra care is necessary.
Consider the following example:
@@ -460,7 +455,7 @@ Kotlin::
----
======
If a `FactoryBean` bean definition is registered programmatically, make sure to follow these steps:
If the `FactoryBean` bean definition is registered programmatically, make sure to follow these steps:
1. Use `RootBeanDefinition`.
2. Set the `beanClass` to the `FactoryBean` class so that AOT knows that it is an intermediate layer.
@@ -474,20 +469,20 @@ Java::
+
[source,java,indent=0,subs="verbatim,quotes"]
----
RootBeanDefinition beanDefinition = new RootBeanDefinition(ClientFactoryBean.class);
beanDefinition.setTargetType(ResolvableType.forClassWithGenerics(ClientFactoryBean.class, MyClient.class));
// ...
registry.registerBeanDefinition("myClient", beanDefinition);
RootBeanDefinition beanDefinition = new RootBeanDefinition(ClientFactoryBean.class);
beanDefinition.setTargetType(ResolvableType.forClassWithGenerics(ClientFactoryBean.class, MyClient.class));
// ...
registry.registerBeanDefinition("myClient", beanDefinition);
----
Kotlin::
+
[source,kotlin,indent=0,subs="verbatim,quotes"]
----
val beanDefinition = RootBeanDefinition(ClientFactoryBean::class.java)
beanDefinition.setTargetType(ResolvableType.forClassWithGenerics(ClientFactoryBean::class.java, MyClient::class.java));
// ...
registry.registerBeanDefinition("myClient", beanDefinition)
val beanDefinition = RootBeanDefinition(ClientFactoryBean::class.java)
beanDefinition.setTargetType(ResolvableType.forClassWithGenerics(ClientFactoryBean::class.java, MyClient::class.java));
// ...
registry.registerBeanDefinition("myClient", beanDefinition)
----
======
@@ -525,7 +520,7 @@ Kotlin::
----
======
To ensure that entity scanning occurs ahead of time, a `PersistenceManagedTypes` bean must be declared and used by the
To make sure the scanning occurs ahead of time, a `PersistenceManagedTypes` bean must be declared and used by the
factory bean definition, as shown by the following example:
[tabs]
@@ -569,7 +564,6 @@ Kotlin::
----
======
[[aot.hints]]
== Runtime Hints
@@ -604,38 +598,35 @@ For instance, the return type of a `@Controller` method is inspected, and releva
For cases that the core container cannot infer, you can register such hints programmatically.
A number of convenient annotations are also provided for common use cases.
[[aot.hints.import-runtime-hints]]
=== `@ImportRuntimeHints`
{spring-framework-api}/aot/hint/RuntimeHintsRegistrar.html[`RuntimeHintsRegistrar`]
implementations allow you to get a callback to the `RuntimeHints` instance managed by the
AOT engine. Implementations of this interface can be registered using
{spring-framework-api}/context/annotation/ImportRuntimeHints.html[`@ImportRuntimeHints`]
on any Spring bean or `@Bean` factory method. `RuntimeHintsRegistrar` implementations are
detected and invoked at build time.
`RuntimeHintsRegistrar` implementations allow you to get a callback to the `RuntimeHints` instance managed by the AOT engine.
Implementations of this interface can be registered using `@ImportRuntimeHints` on any Spring bean or `@Bean` factory method.
`RuntimeHintsRegistrar` implementations are detected and invoked at build time.
include-code::./SpellCheckService[]
If at all possible, `@ImportRuntimeHints` should be used as close as possible to the component that requires the hints.
This way, if the component is not contributed to the `BeanFactory`, the hints will not be contributed either.
This way, if the component is not contributed to the `BeanFactory`, the hints won't be contributed either.
It is also possible to register an implementation statically by adding an entry in `META-INF/spring/aot.factories` with a key equal to the fully-qualified name of the `RuntimeHintsRegistrar` interface.
[[aot.hints.reflective]]
=== `@Reflective`
{spring-framework-api}/aot/hint/annotation/Reflective.html[`@Reflective`] provides an idiomatic way to flag the need for reflection on an annotated element.
For instance, `@EventListener` is meta-annotated with `@Reflective` since the underlying implementation invokes the annotated method using reflection.
Out-of-the-box, only Spring beans are considered, but you can opt-in for scanning using
{spring-framework-api}/context/annotation/ReflectiveScan.html[`@ReflectiveScan`]. In the
example below, all types in the `com.example.app` package and its subpackages are
considered:
Out-of-the-box, only Spring beans are considered but you can opt-in for scanning using `@ReflectiveScan`.
In the example below, all types of the package `com.example.app` and their subpackages are considered:
include-code::./MyConfiguration[]
Scanning happens during AOT processing, and the types in the target packages do not need to have a class-level annotation to be considered.
This performs a _deep scan_, and the presence of `@Reflective`, either directly or as a meta-annotation, is checked on types, fields, constructors, methods, and enclosed elements.
Scanning happens during AOT processing and the types in the target packages do not need to have a class-level annotation to be considered.
This performs a "deep scan" and the presence of `@Reflective`, either directly or as a meta-annotation, is checked on types, fields, constructors, methods, and enclosed elements.
By default, `@Reflective` registers an invocation hint for the annotated element.
This can be tuned by specifying a custom `ReflectiveProcessor` implementation via the `@Reflective` annotation.
@@ -643,12 +634,13 @@ This can be tuned by specifying a custom `ReflectiveProcessor` implementation vi
Library authors can reuse this annotation for their own purposes.
An example of such customization is covered in the next section.
[[aot.hints.register-reflection]]
=== `@RegisterReflection`
{spring-framework-api}/aot/hint/annotation/RegisterReflection.html[`@RegisterReflection`] is a specialization of `@Reflective` that provides a declarative way to register reflection for arbitrary types.
{spring-framework-api}/aot/hint/annotation/RegisterReflection.html[`@RegisterReflection`] is a specialization of `@Reflective` that provides a declarative way of registering reflection for arbitrary types.
NOTE: As a specialization of `@Reflective`, `@RegisterReflection` is also detected if you are using `@ReflectiveScan`.
NOTE: As a specialization of `@Reflective`, this is also detected if you're using `@ReflectiveScan`.
In the following example, public constructors and public methods can be invoked via reflection on `AccountService`:
@@ -656,8 +648,8 @@ include-code::./MyConfiguration[tag=snippet,indent=0]
`@RegisterReflection` can be applied to any target type at the class level, but it can also be applied directly to a method to better indicate where the hints are actually required.
`@RegisterReflection` can be used as a meta-annotation to support more specific needs.
{spring-framework-api}/aot/hint/annotation/RegisterReflectionForBinding.html[`@RegisterReflectionForBinding`] is a composed annotation that is meta-annotated with `@RegisterReflection` and registers the need for serializing arbitrary types.
`@RegisterReflection` can be used as a meta-annotation to provide more specific needs.
{spring-framework-api}/aot/hint/annotation/RegisterReflectionForBinding.html[`@RegisterReflectionForBinding`] is such composed annotation and registers the need for serializing arbitrary types.
A typical use case is the use of DTOs that the container cannot infer, such as using a web client within a method body.
The following example registers `Order` for serialization.
@@ -668,66 +660,11 @@ This registers hints for constructors, fields, properties, and record components
Hints are also registered for types transitively used on properties and record components.
In other words, if `Order` exposes others types, hints are registered for those as well.
[[aot.hints.convention-based-conversion]]
=== Runtime Hints for Convention-based Conversion
Although the core container provides built-in support for automatic conversion of many
common types (see xref:core/validation/convert.adoc[Spring Type Conversion]), some
conversions are supported via a convention-based algorithm that relies on reflection.
Specifically, if there is no explicit `Converter` registered with the `ConversionService`
for a particular source &#8594; target type pair, the internal `ObjectToObjectConverter`
will attempt to use conventions to convert a source object to a target type by delegating
to a method on the source object or to a static factory method or constructor on the
target type. Since this convention-based algorithm can be applied to arbitrary types at
runtime, the core container is not able to infer the runtime hints necessary to support
such reflection.
If you encounter convention-based conversion issues within a native image resulting from
lacking runtime hints, you can register the necessary hints programmatically. For
example, if your application requires a conversion from `java.time.Instant` to
`java.sql.Timestamp` and relies on `ObjectToObjectConverter` to invoke
`java.sql.Timestamp.from(Instant)` using reflection, you could implement a custom
`RuntimeHintsRegitrar` to support this use case within a native image, as demonstrated in
the following example.
[tabs]
======
Java::
+
[source,java,indent=0,subs="verbatim,quotes"]
----
public class TimestampConversionRuntimeHints implements RuntimeHintsRegistrar {
public void registerHints(RuntimeHints hints, ClassLoader classLoader) {
ReflectionHints reflectionHints = hints.reflection();
reflectionHints.registerTypeIfPresent(classLoader, "java.sql.Timestamp", hint -> hint
.withMethod("from", List.of(TypeReference.of(Instant.class)), ExecutableMode.INVOKE)
.onReachableType(TypeReference.of("java.sql.Timestamp")));
}
}
----
======
`TimestampConversionRuntimeHints` can then be registered declaratively via
<<aot.hints.import-runtime-hints>> or statically via a `META-INF/spring/aot.factories`
configuration file.
[NOTE]
====
The above `TimestampConversionRuntimeHints` class is a simplified version of the
`ObjectToObjectConverterRuntimeHints` class that is included in the framework and
registered by default.
Thus, this specific `Instant`-to-`Timestamp` use case is already handled by the framework.
====
[[aot.hints.testing]]
=== Testing Runtime Hints
Spring Core also ships `RuntimeHintsPredicates`, a utility for checking that existing hints match a particular use case.
This can be used in your own tests to validate that a `RuntimeHintsRegistrar` produces the expected results.
This can be used in your own tests to validate that a `RuntimeHintsRegistrar` contains the expected results.
We can write a test for our `SpellCheckService` and ensure that we will be able to load a dictionary at runtime:
include-code::./SpellCheckServiceTests[tag=hintspredicates]
@@ -1,3 +1,7 @@
[[appendix]]
= Appendix
:page-section-summary-toc: 1
@@ -12,6 +12,7 @@ Spring's extensible XML configuration mechanism is based on XML Schema. If you a
familiar with Spring's current XML configuration extensions that come with the standard
Spring distribution, you should first read the previous section on xref:core/appendix/xsd-schemas.adoc[XML Schemas].
To create new XML configuration extensions:
. xref:core/appendix/xml-custom.adoc#core.appendix.xsd-custom-schema[Author] an XML schema to describe your custom element(s).
@@ -37,6 +38,7 @@ examples follow later in this appendix. The intent of this first simple example
through the basic steps of making a custom extension.)
[[xsd-custom-schema]]
== Authoring the Schema
@@ -108,6 +110,7 @@ can use autocompletion to let a user choose between several configuration option
defined in the enumeration.
[[xsd-custom-namespacehandler]]
== Coding a `NamespaceHandler`
@@ -184,6 +187,7 @@ means that each `BeanDefinitionParser` contains only the logic for parsing a sin
custom element, as we can see in the next step.
[[xsd-custom-parser]]
== Using `BeanDefinitionParser`
@@ -272,11 +276,13 @@ the basic grunt work of creating a single `BeanDefinition`.
single `BeanDefinition` represents.
======
In this simple case, this is all that we need to do. The creation of our single
`BeanDefinition` is handled by the `AbstractSingleBeanDefinitionParser` superclass, as
is the extraction and setting of the bean definition's unique identifier.
[[xsd-custom-registration]]
== Registering the Handler and the Schema
@@ -288,6 +294,7 @@ can, for example, be distributed alongside your binary classes in a JAR file. Th
XML parsing infrastructure automatically picks up your new extension by consuming
these special properties files, the formats of which are detailed in the next two sections.
[[xsd-custom-registration-spring-handlers]]
=== Writing `META-INF/spring.handlers`
@@ -306,6 +313,7 @@ The first part (the key) of the key-value pair is the URI associated with your c
namespace extension and needs to exactly match exactly the value of the `targetNamespace`
attribute, as specified in your custom XSD schema.
[[xsd-custom-registration-spring-schemas]]
=== Writing 'META-INF/spring.schemas'
@@ -329,6 +337,7 @@ You are encouraged to deploy your XSD file (or files) right alongside
the `NamespaceHandler` and `BeanDefinitionParser` classes on the classpath.
[[xsd-custom-using]]
== Using a Custom Extension in Your Spring XML Configuration
@@ -362,11 +371,13 @@ in a Spring XML configuration file:
<1> Our custom bean.
[[xsd-custom-meat]]
== More Detailed Examples
This section presents some more detailed examples of custom XML extensions.
[[xsd-custom-custom-nested]]
=== Nesting Custom Elements within Custom Elements
@@ -742,6 +753,7 @@ http\://www.foo.example/schema/component=com.foo.ComponentNamespaceHandler
http\://www.foo.example/schema/component/component.xsd=com/foo/component.xsd
----
[[xsd-custom-custom-just-attributes]]
=== Custom Attributes on "`Normal`" Elements
@@ -995,3 +1007,5 @@ http\://www.foo.example/schema/jcache=com.foo.JCacheNamespaceHandler
# in 'META-INF/spring.schemas'
http\://www.foo.example/schema/jcache/jcache.xsd=com/foo/jcache.xsd
----
@@ -4,6 +4,7 @@
This part of the appendix lists XML schemas related to the core container.
[[xsd-schemas-util]]
== The `util` Schema
@@ -28,6 +29,7 @@ correct schema so that the tags in the `util` namespace are available to you):
</beans>
----
[[xsd-schemas-util-constant]]
=== Using `<util:constant/>`
@@ -184,6 +186,7 @@ Kotlin::
</bean>
----
[[xsd-schemas-util-property-path]]
=== Using `<util:property-path/>`
@@ -305,6 +308,7 @@ You can specifically set the result type in the actual definition. This is not n
for most use cases, but it can sometimes be useful. See the javadoc for more info on
this feature.
[[xsd-schemas-util-properties]]
=== Using `<util:properties/>`
@@ -330,6 +334,7 @@ The following example uses a `util:properties` element to make a more concise re
<util:properties id="jdbcConfiguration" location="classpath:com/foo/jdbc-production.properties"/>
----
[[xsd-schemas-util-list]]
=== Using `<util:list/>`
@@ -384,6 +389,7 @@ following configuration:
If no `list-class` attribute is supplied, the container chooses a `List` implementation.
[[xsd-schemas-util-map]]
=== Using `<util:map/>`
@@ -438,6 +444,7 @@ following configuration:
If no `'map-class'` attribute is supplied, the container chooses a `Map` implementation.
[[xsd-schemas-util-set]]
=== Using `<util:set/>`
@@ -493,6 +500,7 @@ following configuration:
If no `set-class` attribute is supplied, the container chooses a `Set` implementation.
[[xsd-schemas-aop]]
== The `aop` Schema
@@ -522,6 +530,7 @@ are available to you):
----
[[xsd-schemas-context]]
== The `context` Schema
@@ -546,6 +555,7 @@ available to you:
</beans>
----
[[xsd-schemas-context-pphc]]
=== Using `<property-placeholder/>`
@@ -589,25 +599,34 @@ element for that purpose. Similarly, Spring's
xref:integration/cache/annotations.adoc[caching annotations] need to be explicitly
xref:integration/cache/annotations.adoc#cache-annotation-enable[enabled] as well.
[[xsd-schemas-context-component-scan]]
=== Using `<component-scan/>`
This element is detailed in the section on xref:core/beans/annotation-config.adoc[annotation-based container configuration].
This element is detailed in the section on xref:core/beans/annotation-config.adoc[annotation-based container configuration]
.
[[xsd-schemas-context-ltw]]
=== Using `<load-time-weaver/>`
This element is detailed in the section on xref:core/aop/using-aspectj.adoc#aop-aj-ltw[load-time weaving with AspectJ in the Spring Framework].
This element is detailed in the section on xref:core/aop/using-aspectj.adoc#aop-aj-ltw[load-time weaving with AspectJ in the Spring Framework]
.
[[xsd-schemas-context-sc]]
=== Using `<spring-configured/>`
This element is detailed in the section on xref:core/aop/using-aspectj.adoc#aop-atconfigurable[using AspectJ to dependency inject domain objects with Spring].
This element is detailed in the section on xref:core/aop/using-aspectj.adoc#aop-atconfigurable[using AspectJ to dependency inject domain objects with Spring]
.
[[xsd-schemas-context-mbe]]
=== Using `<mbean-export/>`
This element is detailed in the section on xref:integration/jmx/naming.adoc#jmx-context-mbeanexport[configuring annotation-based MBean export].
This element is detailed in the section on xref:integration/jmx/naming.adoc#jmx-context-mbeanexport[configuring annotation-based MBean export]
.
[[xsd-schemas-beans]]
@@ -647,3 +666,7 @@ as it stands).
In the case of the preceding example, you could assume that there is some logic that consumes
the bean definition and sets up some caching infrastructure that uses the supplied metadata.
@@ -3,3 +3,7 @@
:page-section-summary-toc: 1
This chapter covers Spring's Inversion of Control (IoC) container.
@@ -62,3 +62,6 @@ application context in which it is defined. This means that, if you put
it only checks for `@Autowired` beans in your controllers, and not your services. See
xref:web/webmvc/mvc-servlet.adoc[The DispatcherServlet] for more information.
====
@@ -152,3 +152,6 @@ The corresponding bean definitions follow:
</beans>
----
@@ -568,3 +568,6 @@ the following example:
</beans>
----
--
@@ -37,18 +37,18 @@ Kotlin::
----
======
[TIP]
[NOTE]
====
An `@Autowired` annotation on such a constructor is not necessary if the target bean
defines only one constructor. However, if several constructors are available and there is
no primary or default constructor, at least one of the constructors must be annotated
with `@Autowired` in order to instruct the container which one to use. See the discussion
on xref:core/beans/annotation-config/autowired.adoc#beans-autowired-annotation-constructor-resolution[constructor resolution]
for details.
As of Spring Framework 4.3, an `@Autowired` annotation on such a constructor is no longer
necessary if the target bean defines only one constructor to begin with. However, if
several constructors are available and there is no primary/default constructor, at least
one of the constructors must be annotated with `@Autowired` in order to instruct the
container which one to use. See the discussion on
xref:core/beans/annotation-config/autowired.adoc#beans-autowired-annotation-constructor-resolution[constructor resolution] for details.
====
You can apply the `@Autowired` annotation to _traditional_ setter methods, as the
following example shows:
You can also apply the `@Autowired` annotation to _traditional_ setter methods,
as the following example shows:
[tabs]
======
@@ -84,8 +84,8 @@ Kotlin::
----
======
You can apply `@Autowired` to methods with arbitrary names and multiple arguments, as the
following example shows:
You can also apply the annotation to methods with arbitrary names and multiple
arguments, as the following example shows:
[tabs]
======
@@ -176,15 +176,14 @@ Kotlin::
====
Make sure that your target components (for example, `MovieCatalog` or `CustomerPreferenceDao`)
are consistently declared by the type that you use for your `@Autowired`-annotated
injection points. Otherwise, injection may fail due to a "no type match found" error at
runtime.
injection points. Otherwise, injection may fail due to a "no type match found" error at runtime.
For XML-defined beans or component classes found via classpath scanning, the container
usually knows the concrete type up front. However, for `@Bean` factory methods, you need
to make sure that the declared return type is sufficiently expressive. For components
that implement several interfaces or for components potentially referred to by their
implementation type, declare the most specific return type on your factory method (at
least as specific as required by the injection points referring to your bean).
implementation type, consider declaring the most specific return type on your factory
method (at least as specific as required by the injection points referring to your bean).
====
.[[beans-autowired-annotation-self-injection]]Self Injection
@@ -313,8 +312,8 @@ through `@Order` values in combination with `@Primary` on a single bean for each
====
Even typed `Map` instances can be autowired as long as the expected key type is `String`.
The map values are all beans of the expected type, and the keys are the corresponding
bean names, as the following example shows:
The map values contain all beans of the expected type, and the keys contain the
corresponding bean names, as the following example shows:
[tabs]
======
@@ -432,7 +431,7 @@ annotated constructor does not have to be public.
====
Alternatively, you can express the non-required nature of a particular dependency
through Java's `java.util.Optional`, as the following example shows:
through Java 8's `java.util.Optional`, as the following example shows:
[source,java,indent=0,subs="verbatim,quotes"]
----
@@ -445,9 +444,9 @@ through Java's `java.util.Optional`, as the following example shows:
}
----
You can also use a parameter-level `@Nullable` annotation (of any kind in any package --
for example, `org.jspecify.annotations.Nullable` from JSpecify) or just leverage Kotlin's
built-in null-safety support:
You can also use a `@Nullable` annotation (of any kind in any package -- for example,
`javax.annotation.Nullable` from JSR-305) or just leverage Kotlin built-in null-safety
support:
[tabs]
======
@@ -522,6 +521,8 @@ class MovieRecommender {
The `@Autowired`, `@Inject`, `@Value`, and `@Resource` annotations are handled by Spring
`BeanPostProcessor` implementations. This means that you cannot apply these annotations
within your own `BeanPostProcessor` or `BeanFactoryPostProcessor` types (if any).
These types must be 'wired up' explicitly by using XML or a Spring `@Bean` method.
====
@@ -28,3 +28,6 @@ with the `CustomAutowireConfigurer`
When multiple beans qualify as autowire candidates, the determination of a "`primary`" is
as follows: If exactly one bean definition among the candidates has a `primary`
attribute set to `true`, it is selected.
@@ -96,3 +96,6 @@ Kotlin::
private lateinit var s: List<Store<Integer>>
----
======
@@ -64,3 +64,7 @@ JDK 11. As of Jakarta EE 9, the package lives in `jakarta.annotation` now. If ne
the `jakarta.annotation-api` artifact needs to be obtained via Maven Central now,
simply to be added to the application's classpath like any other library.
====
@@ -142,3 +142,4 @@ Kotlin::
`ApplicationContext`.
======
--
@@ -9,15 +9,15 @@ Java::
+
[source,java,indent=0,subs="verbatim,quotes"]
----
@Component
public class MovieRecommender {
@Component
public class MovieRecommender {
private final String catalog;
private final String catalog;
public MovieRecommender(@Value("${catalog.name}") String catalog) {
this.catalog = catalog;
}
}
public MovieRecommender(@Value("${catalog.name}") String catalog) {
this.catalog = catalog;
}
}
----
Kotlin::
@@ -37,9 +37,9 @@ Java::
+
[source,java,indent=0,subs="verbatim,quotes"]
----
@Configuration
@PropertySource("classpath:application.properties")
public class AppConfig { }
@Configuration
@PropertySource("classpath:application.properties")
public class AppConfig { }
----
Kotlin::
@@ -56,7 +56,7 @@ And the following `application.properties` file:
[source,java,indent=0,subs="verbatim,quotes"]
----
catalog.name=MovieCatalog
catalog.name=MovieCatalog
----
In that case, the `catalog` parameter and field will be equal to the `MovieCatalog` value.
@@ -101,11 +101,8 @@ NOTE: When configuring a `PropertySourcesPlaceholderConfigurer` using JavaConfig
Using the above configuration ensures Spring initialization failure if any `${}`
placeholder could not be resolved. It is also possible to use methods like
`setPlaceholderPrefix()`, `setPlaceholderSuffix()`, `setValueSeparator()`, or
`setEscapeCharacter()` to customize the placeholder syntax. In addition, the default
escape character can be changed or disabled globally by setting the
`spring.placeholder.escapeCharacter.default` property via a JVM system property (or via
the xref:appendix.adoc#appendix-spring-properties[`SpringProperties`] mechanism).
`setPlaceholderPrefix`, `setPlaceholderSuffix`, `setValueSeparator`, or
`setEscapeCharacter` to customize placeholders.
NOTE: Spring Boot configures by default a `PropertySourcesPlaceholderConfigurer` bean that
will get properties from `application.properties` and `application.yml` files.
@@ -122,15 +119,15 @@ Java::
+
[source,java,indent=0,subs="verbatim,quotes"]
----
@Component
public class MovieRecommender {
@Component
public class MovieRecommender {
private final String catalog;
private final String catalog;
public MovieRecommender(@Value("${catalog.name:defaultCatalog}") String catalog) {
this.catalog = catalog;
}
}
public MovieRecommender(@Value("${catalog.name:defaultCatalog}") String catalog) {
this.catalog = catalog;
}
}
----
Kotlin::
@@ -153,16 +150,16 @@ Java::
+
[source,java,indent=0,subs="verbatim,quotes"]
----
@Configuration
public class AppConfig {
@Configuration
public class AppConfig {
@Bean
public ConversionService conversionService() {
DefaultFormattingConversionService conversionService = new DefaultFormattingConversionService();
conversionService.addConverter(new MyCustomConverter());
return conversionService;
}
}
@Bean
public ConversionService conversionService() {
DefaultFormattingConversionService conversionService = new DefaultFormattingConversionService();
conversionService.addConverter(new MyCustomConverter());
return conversionService;
}
}
----
Kotlin::
@@ -191,15 +188,15 @@ Java::
+
[source,java,indent=0,subs="verbatim,quotes"]
----
@Component
public class MovieRecommender {
@Component
public class MovieRecommender {
private final String catalog;
private final String catalog;
public MovieRecommender(@Value("#{systemProperties['user.catalog'] + 'Catalog' }") String catalog) {
this.catalog = catalog;
}
}
public MovieRecommender(@Value("#{systemProperties['user.catalog'] + 'Catalog' }") String catalog) {
this.catalog = catalog;
}
}
----
Kotlin::
@@ -220,16 +217,16 @@ Java::
+
[source,java,indent=0,subs="verbatim,quotes"]
----
@Component
public class MovieRecommender {
@Component
public class MovieRecommender {
private final Map<String, Integer> countOfMoviesPerCatalog;
private final Map<String, Integer> countOfMoviesPerCatalog;
public MovieRecommender(
@Value("#{{'Thriller': 100, 'Comedy': 300}}") Map<String, Integer> countOfMoviesPerCatalog) {
this.countOfMoviesPerCatalog = countOfMoviesPerCatalog;
}
}
public MovieRecommender(
@Value("#{{'Thriller': 100, 'Comedy': 300}}") Map<String, Integer> countOfMoviesPerCatalog) {
this.countOfMoviesPerCatalog = countOfMoviesPerCatalog;
}
}
----
Kotlin::
@@ -241,3 +238,5 @@ Kotlin::
@Value("#{{'Thriller': 100, 'Comedy': 300}}") private val countOfMoviesPerCatalog: Map<String, Int>)
----
======
@@ -29,6 +29,7 @@ created and initialized, you have a fully configured and executable system or ap
image::container-magic.png[]
[[beans-factory-metadata]]
== Configuration Metadata
@@ -62,6 +63,8 @@ Typically, one does not configure fine-grained domain objects in the container,
it is usually the responsibility of repositories and business logic to create and load
domain objects.
[[beans-factory-xml]]
=== XML as an External Configuration DSL
@@ -116,7 +119,7 @@ Kotlin::
+
[source,kotlin,indent=0,subs="verbatim,quotes"]
----
val context = ClassPathXmlApplicationContext("services.xml", "daos.xml")
val context = ClassPathXmlApplicationContext("services.xml", "daos.xml")
----
======
@@ -185,6 +188,7 @@ definition. This linkage between `id` and `ref` elements expresses the dependenc
collaborating objects. For details of configuring an object's dependencies, see
xref:core/beans/dependencies.adoc[Dependencies].
[[beans-factory-xml-import]]
=== Composing XML-based Configuration Metadata
@@ -202,17 +206,18 @@ another file or files. The following example shows how to do so:
<beans>
<import resource="services.xml"/>
<import resource="resources/messageSource.xml"/>
<import resource="/resources/themeSource.xml"/>
<bean id="bean1" class="..."/>
<bean id="bean2" class="..."/>
</beans>
----
In the preceding example, external bean definitions are loaded from the files
`services.xml` and `messageSource.xml`. All location paths are
In the preceding example, external bean definitions are loaded from three files:
`services.xml`, `messageSource.xml`, and `themeSource.xml`. All location paths are
relative to the definition file doing the importing, so `services.xml` must be in the
same directory or classpath location as the file doing the importing, while
`messageSource.xml` must be in a `resources` location below the
`messageSource.xml` and `themeSource.xml` must be in a `resources` location below the
location of the importing file. As you can see, a leading slash is ignored. However, given
that these paths are relative, it is better form not to use the slash at all. The
contents of the files being imported, including the top level `<beans/>` element, must
@@ -239,6 +244,42 @@ The namespace itself provides the import directive feature. Further
configuration features beyond plain bean definitions are available in a selection
of XML namespaces provided by Spring -- for example, the `context` and `util` namespaces.
[[beans-factory-groovy]]
=== The Groovy Bean Definition DSL
As a further example for externalized configuration metadata, bean definitions can also
be expressed in Spring's Groovy Bean Definition DSL, as known from the Grails framework.
Typically, such configuration live in a ".groovy" file with the structure shown in the
following example:
[source,groovy,indent=0,subs="verbatim,quotes"]
----
beans {
dataSource(BasicDataSource) {
driverClassName = "org.hsqldb.jdbcDriver"
url = "jdbc:hsqldb:mem:grailsDB"
username = "sa"
password = ""
settings = [mynew:"setting"]
}
sessionFactory(SessionFactory) {
dataSource = dataSource
}
myService(MyService) {
nestedBean = { AnotherBean bean ->
dataSource = dataSource
}
}
}
----
This configuration style is largely equivalent to XML bean definitions and even
supports Spring's XML configuration namespaces. It also allows for importing XML
bean definition files through an `importBeans` directive.
[[beans-factory-client]]
== Using the Container
@@ -269,16 +310,16 @@ Kotlin::
+
[source,kotlin,indent=0,subs="verbatim,quotes"]
----
import org.springframework.beans.factory.getBean
import org.springframework.beans.factory.getBean
// create and configure beans
val context = ClassPathXmlApplicationContext("services.xml", "daos.xml")
val context = ClassPathXmlApplicationContext("services.xml", "daos.xml")
// retrieve configured instance
val service = context.getBean<PetStoreService>("petStore")
// retrieve configured instance
val service = context.getBean<PetStoreService>("petStore")
// use configured instance
var userList = service.getUsernameList()
// use configured instance
var userList = service.getUsernameList()
----
======
@@ -362,3 +403,6 @@ code should never use them. Indeed, your application code should have no calls t
Spring's integration with web frameworks provides dependency injection for various web
framework components such as controllers and JSF-managed beans, letting you declare
a dependency on a specific bean through metadata (such as an autowiring annotation).
@@ -21,6 +21,7 @@ operate on shared `BeanDefinition` objects as a core metadata representation.
This is the essence of what makes Spring's container so flexible and extensible.
[[context-introduction-ctx-vs-beanfactory]]
== `BeanFactory` or `ApplicationContext`?
@@ -78,3 +78,7 @@ important (at least for singleton beans) that if you have a (parent) bean defini
which you intend to use only as a template, and this definition specifies a class, you
must make sure to set the __abstract__ attribute to __true__, otherwise the application
context will actually (attempt to) pre-instantiate the `abstract` bean.
@@ -1,29 +1,28 @@
[[beans-classpath-scanning]]
= Classpath Scanning and Managed Components
Most examples in this chapter use XML to specify the configuration metadata that
produces each `BeanDefinition` within the Spring container. The previous section
(xref:core/beans/annotation-config.adoc[Annotation-based Container Configuration])
demonstrates how to provide a lot of the configuration metadata through source-level
annotations. Even in those examples, however, the "base" bean definitions are explicitly
defined in the XML file, while the annotations drive only the dependency injection.
This section describes an option for implicitly detecting the candidate components by
scanning the classpath. Candidate components are classes that match against filter
criteria and have a corresponding bean definition registered with the container.
This removes the need to use XML to perform bean registration. Instead, you can use
annotations (for example, `@Component`), AspectJ type expressions, or your own
Most examples in this chapter use XML to specify the configuration metadata that produces
each `BeanDefinition` within the Spring container. The previous section
(xref:core/beans/annotation-config.adoc[Annotation-based Container Configuration]) demonstrates how to provide a lot of the configuration
metadata through source-level annotations. Even in those examples, however, the "base"
bean definitions are explicitly defined in the XML file, while the annotations drive only
the dependency injection. This section describes an option for implicitly detecting the
candidate components by scanning the classpath. Candidate components are classes that
match against a filter criteria and have a corresponding bean definition registered with
the container. This removes the need to use XML to perform bean registration. Instead, you
can use annotations (for example, `@Component`), AspectJ type expressions, or your own
custom filter criteria to select which classes have bean definitions registered with
the container.
[NOTE]
====
You can define beans using Java rather than using XML files. Take a look at the
`@Configuration`, `@Bean`, `@Import`, and `@DependsOn` annotations for examples
of how to use these features.
`@Configuration`, `@Bean`, `@Import`, and `@DependsOn` annotations for examples of how to
use these features.
====
[[beans-stereotype-annotations]]
== `@Component` and Further Stereotype Annotations
@@ -47,6 +46,7 @@ clearly the better choice. Similarly, as stated earlier, `@Repository` is alread
supported as a marker for automatic exception translation in your persistence layer.
[[beans-meta-annotations]]
== Using Meta-annotations and Composed Annotations
@@ -70,7 +70,7 @@ Java::
// ...
}
----
<1> The `@Component` meta-annotation causes `@Service` to be treated in the same way as `@Component`.
<1> The `@Component` causes `@Service` to be treated in the same way as `@Component`.
Kotlin::
+
@@ -85,7 +85,7 @@ Kotlin::
// ...
}
----
<1> The `@Component` meta-annotation causes `@Service` to be treated in the same way as `@Component`.
<1> The `@Component` causes `@Service` to be treated in the same way as `@Component`.
======
You can also combine meta-annotations to create "`composed annotations`". For example,
@@ -97,7 +97,7 @@ meta-annotations to allow customization. This can be particularly useful when yo
want to only expose a subset of the meta-annotation's attributes. For example, Spring's
`@SessionScope` annotation hard codes the scope name to `session` but still allows
customization of the `proxyMode`. The following listing shows the definition of the
`@SessionScope` annotation:
`SessionScope` annotation:
[tabs]
======
@@ -195,6 +195,7 @@ For further details, see the
wiki page.
[[beans-scanning-autodetection]]
== Automatically Detecting Classes and Registering Bean Definitions
@@ -211,7 +212,7 @@ Java::
@Service
public class SimpleMovieLister {
private final MovieFinder movieFinder;
private MovieFinder movieFinder;
public SimpleMovieLister(MovieFinder movieFinder) {
this.movieFinder = movieFinder;
@@ -251,11 +252,11 @@ Kotlin::
----
======
To autodetect these classes and register the corresponding beans, you need to add
`@ComponentScan` to your `@Configuration` class, where the `basePackages` attribute is
configured with a common parent package for the two classes. Alternatively, you can
specify a comma-, semicolon-, or space-separated list that includes the parent package
of each class.
`@ComponentScan` to your `@Configuration` class, where the `basePackages` attribute
is a common parent package for the two classes. (Alternatively, you can specify a
comma- or semicolon- or space-separated list that includes the parent package of each class.)
[tabs]
======
@@ -282,10 +283,10 @@ Kotlin::
----
======
TIP: For brevity, the preceding example could have used the implicit `value` attribute of
the annotation instead: `@ComponentScan("org.example")`
NOTE: For brevity, the preceding example could have used the `value` attribute of the
annotation (that is, `@ComponentScan("org.example")`).
The following example uses XML configuration:
The following alternative uses XML:
[source,xml,indent=0,subs="verbatim,quotes"]
----
@@ -325,68 +326,17 @@ sure that they are 'opened' (that is, that they use an `opens` declaration inste
Furthermore, the `AutowiredAnnotationBeanPostProcessor` and
`CommonAnnotationBeanPostProcessor` are both implicitly included when you use the
`<context:component-scan>` element. That means that the two components are autodetected
and wired together -- all without any bean configuration metadata provided in XML.
component-scan element. That means that the two components are autodetected and
wired together -- all without any bean configuration metadata provided in XML.
NOTE: You can disable the registration of `AutowiredAnnotationBeanPostProcessor` and
`CommonAnnotationBeanPostProcessor` by including the `annotation-config` attribute
with a value of `false`.
[[beans-scanning-placeholders-and-patterns]]
=== Property Placeholders and Ant-style Patterns
The `basePackages` and `value` attributes in `@ComponentScan` support `${...}` property
placeholders which are resolved against the `Environment` as well as Ant-style package
patterns such as `"org.example.+++**+++"`.
In addition, multiple packages or patterns may be specified, either separately or within
a single String — for example, `{"org.example.config", "org.example.service.+++**+++"}`
or `"org.example.config, org.example.service.+++**+++"`.
The following example specifies the `app.scan.packages` property placeholder for the
implicit `value` attribute in `@ComponentScan`.
[tabs]
======
Java::
+
[source,java,indent=0,subs="verbatim,quotes"]
----
@Configuration
@ComponentScan("${app.scan.packages}") // <1>
public class AppConfig {
// ...
}
----
<1> `app.scan.packages` property placeholder to be resolved against the `Environment`
Kotlin::
+
[source,kotlin,indent=0,subs="verbatim,quotes"]
----
@Configuration
@ComponentScan(["\${app.scan.packages}"]) // <1>
class AppConfig {
// ...
}
----
<1> `app.scan.packages` property placeholder to be resolved against the `Environment`
======
The following listing represents a properties file which defines the `app.scan.packages`
property. In the preceding example, it is assumed that this properties file has been
registered with the `Environment` for example, via `@PropertySource` or a similar
mechanism.
[source,properties,indent=0,subs="verbatim,quotes"]
----
app.scan.packages=org.example.config, org.example.service.**
----
[[beans-scanning-filters]]
=== Using Filters to Customize Scanning
== Using Filters to Customize Scanning
By default, classes annotated with `@Component`, `@Repository`, `@Service`, `@Controller`,
`@Configuration`, or a custom annotation that itself is annotated with `@Component` are
@@ -423,8 +373,8 @@ The following table describes the filtering options:
| A custom implementation of the `org.springframework.core.type.TypeFilter` interface.
|===
The following example shows `@ComponentScan` configuration that excludes all
`@Repository` annotations and includes "`Stub`" repositories instead:
The following example shows the configuration ignoring all `@Repository` annotations
and using "`stub`" repositories instead:
[tabs]
======
@@ -476,352 +426,6 @@ annotated or meta-annotated with `@Component`, `@Repository`, `@Service`, `@Cont
`@RestController`, or `@Configuration`.
[[beans-scanning-name-generator]]
=== Naming Autodetected Components
When a component is autodetected as part of the scanning process, its bean name is
generated by the `BeanNameGenerator` strategy known to that scanner.
By default, the `AnnotationBeanNameGenerator` is used. For Spring
xref:core/beans/classpath-scanning.adoc#beans-stereotype-annotations[stereotype annotations],
if you supply a name via the annotation's `value` attribute that name will be used as
the name in the corresponding bean definition. This convention also applies when the
`@jakarta.inject.Named` annotation is used instead of Spring stereotype annotations.
As of Spring Framework 6.1, the name of the annotation attribute that is used to specify
the bean name is no longer required to be `value`. Custom stereotype annotations can
declare an attribute with a different name (such as `name`) and annotate that attribute
with `@AliasFor(annotation = Component.class, attribute = "value")`. See the source code
declaration of `ControllerAdvice#name()` for a concrete example.
[WARNING]
====
As of Spring Framework 6.1, support for convention-based stereotype names is deprecated
and will be removed in a future version of the framework. Consequently, custom stereotype
annotations must use `@AliasFor` to declare an explicit alias for the `value` attribute
in `@Component`. See the source code declaration of `Repository#value()` and
`ControllerAdvice#name()` for concrete examples.
====
If an explicit bean name cannot be derived from such an annotation or for any other
detected component (such as those discovered by custom filters), the default bean name
generator returns the uncapitalized non-qualified class name. For example, if the
following component classes were detected, the names would be `myMovieLister` and
`movieFinderImpl`.
[tabs]
======
Java::
+
[source,java,indent=0,subs="verbatim,quotes"]
----
@Service("myMovieLister")
public class SimpleMovieLister {
// ...
}
----
Kotlin::
+
[source,kotlin,indent=0,subs="verbatim,quotes"]
----
@Service("myMovieLister")
class SimpleMovieLister {
// ...
}
----
======
[tabs]
======
Java::
+
[source,java,indent=0,subs="verbatim,quotes"]
----
@Repository
public class MovieFinderImpl implements MovieFinder {
// ...
}
----
Kotlin::
+
[source,kotlin,indent=0,subs="verbatim,quotes"]
----
@Repository
class MovieFinderImpl : MovieFinder {
// ...
}
----
======
If you do not want to rely on the default bean-naming strategy, you can provide a custom
bean-naming strategy. First, implement the
{spring-framework-api}/beans/factory/support/BeanNameGenerator.html[`BeanNameGenerator`]
interface, and be sure to include a default no-arg constructor. Then, provide the fully
qualified class name when configuring the scanner, as the following example annotation
and bean definition show.
TIP: If you run into naming conflicts due to multiple autodetected components having the
same non-qualified class name (i.e., classes with identical names but residing in
different packages), you may need to configure a `BeanNameGenerator` that defaults to the
fully qualified class name for the generated bean name. The
`FullyQualifiedAnnotationBeanNameGenerator` located in package
`org.springframework.context.annotation` can be used for such purposes.
[tabs]
======
Java::
+
[source,java,indent=0,subs="verbatim,quotes"]
----
@Configuration
@ComponentScan(basePackages = "org.example", nameGenerator = MyNameGenerator.class)
public class AppConfig {
// ...
}
----
Kotlin::
+
[source,kotlin,indent=0,subs="verbatim,quotes"]
----
@Configuration
@ComponentScan(basePackages = ["org.example"], nameGenerator = MyNameGenerator::class)
class AppConfig {
// ...
}
----
======
[source,xml,indent=0,subs="verbatim,quotes"]
----
<beans>
<context:component-scan base-package="org.example"
name-generator="org.example.MyNameGenerator" />
</beans>
----
As a general rule, consider specifying the name with the annotation whenever other
components may be making explicit references to it. On the other hand, the
auto-generated names are adequate whenever the container is responsible for wiring.
[[beans-scanning-scope-resolver]]
=== Providing a Scope for Autodetected Components
As with Spring-managed components in general, the default and most common scope for
autodetected components is `singleton`. However, sometimes you need a different scope
that can be specified by the `@Scope` annotation. You can provide the name of the
scope within the annotation, as the following example shows:
[tabs]
======
Java::
+
[source,java,indent=0,subs="verbatim,quotes"]
----
@Scope("prototype")
@Repository
public class MovieFinderImpl implements MovieFinder {
// ...
}
----
Kotlin::
+
[source,kotlin,indent=0,subs="verbatim,quotes"]
----
@Scope("prototype")
@Repository
class MovieFinderImpl : MovieFinder {
// ...
}
----
======
NOTE: `@Scope` annotations are only introspected on the concrete bean class (for annotated
components) or the factory method (for `@Bean` methods). In contrast to XML bean
definitions, there is no notion of bean definition inheritance, and inheritance
hierarchies at the class level are irrelevant for metadata purposes.
For details on web-specific scopes such as "`request`" or "`session`" in a Spring context,
see xref:core/beans/factory-scopes.adoc#beans-factory-scopes-other[Request, Session, Application, and WebSocket Scopes].
As with the pre-built annotations for those scopes, you may also compose your own scoping
annotations by using Spring's meta-annotation approach: for example, a custom annotation
meta-annotated with `@Scope("prototype")`, possibly also declaring a custom scoped-proxy mode.
NOTE: To provide a custom strategy for scope resolution rather than relying on the
annotation-based approach, you can implement the
{spring-framework-api}/context/annotation/ScopeMetadataResolver.html[`ScopeMetadataResolver`]
interface. Be sure to include a default no-arg constructor. Then you can provide the
fully qualified class name when configuring the scanner, as the following example of both
an annotation and a bean definition shows:
[tabs]
======
Java::
+
[source,java,indent=0,subs="verbatim,quotes"]
----
@Configuration
@ComponentScan(basePackages = "org.example", scopeResolver = MyScopeResolver.class)
public class AppConfig {
// ...
}
----
Kotlin::
+
[source,kotlin,indent=0,subs="verbatim,quotes"]
----
@Configuration
@ComponentScan(basePackages = ["org.example"], scopeResolver = MyScopeResolver::class)
class AppConfig {
// ...
}
----
======
[source,xml,indent=0,subs="verbatim,quotes"]
----
<beans>
<context:component-scan base-package="org.example" scope-resolver="org.example.MyScopeResolver"/>
</beans>
----
When using certain non-singleton scopes, it may be necessary to generate proxies for the
scoped objects. The reasoning is described in
xref:core/beans/factory-scopes.adoc#beans-factory-scopes-other-injection[Scoped Beans as Dependencies].
For this purpose, a scoped-proxy attribute is available on the component-scan
element. The three possible values are: `no`, `interfaces`, and `targetClass`. For example,
the following configuration results in standard JDK dynamic proxies:
[tabs]
======
Java::
+
[source,java,indent=0,subs="verbatim,quotes"]
----
@Configuration
@ComponentScan(basePackages = "org.example", scopedProxy = ScopedProxyMode.INTERFACES)
public class AppConfig {
// ...
}
----
Kotlin::
+
[source,kotlin,indent=0,subs="verbatim,quotes"]
----
@Configuration
@ComponentScan(basePackages = ["org.example"], scopedProxy = ScopedProxyMode.INTERFACES)
class AppConfig {
// ...
}
----
======
[source,xml,indent=0,subs="verbatim,quotes"]
----
<beans>
<context:component-scan base-package="org.example" scoped-proxy="interfaces"/>
</beans>
----
[[beans-scanning-qualifiers]]
=== Providing Qualifier Metadata with Annotations
The `@Qualifier` annotation is discussed in
xref:core/beans/annotation-config/autowired-qualifiers.adoc[Fine-tuning Annotation-based Autowiring with Qualifiers].
The examples in that section demonstrate the use of the `@Qualifier` annotation and
custom qualifier annotations to provide fine-grained control when you resolve autowire
candidates. Because those examples were based on XML bean definitions, the qualifier
metadata was provided on the candidate bean definitions by using the `qualifier` or `meta`
child elements of the `bean` element in the XML. When relying upon classpath scanning for
auto-detection of components, you can provide the qualifier metadata with type-level
annotations on the candidate class. The following three examples demonstrate this
technique:
[tabs]
======
Java::
+
[source,java,indent=0,subs="verbatim,quotes"]
----
@Component
@Qualifier("Action")
public class ActionMovieCatalog implements MovieCatalog {
// ...
}
----
Kotlin::
+
[source,kotlin,indent=0,subs="verbatim,quotes"]
----
@Component
@Qualifier("Action")
class ActionMovieCatalog : MovieCatalog
----
======
[tabs]
======
Java::
+
[source,java,indent=0,subs="verbatim,quotes"]
----
@Component
@Genre("Action")
public class ActionMovieCatalog implements MovieCatalog {
// ...
}
----
Kotlin::
+
[source,kotlin,indent=0,subs="verbatim,quotes"]
----
@Component
@Genre("Action")
class ActionMovieCatalog : MovieCatalog {
// ...
}
----
======
[tabs]
======
Java::
+
[source,java,indent=0,subs="verbatim,quotes"]
----
@Component
@Offline
public class CachingMovieCatalog implements MovieCatalog {
// ...
}
----
Kotlin::
+
[source,kotlin,indent=0,subs="verbatim,quotes"]
----
@Component
@Offline
class CachingMovieCatalog : MovieCatalog {
// ...
}
----
======
NOTE: As with most annotation-based alternatives, keep in mind that the annotation metadata is
bound to the class definition itself, while the use of XML allows for multiple beans
of the same type to provide variations in their qualifier metadata, because that
metadata is provided per-instance rather than per-class.
[[beans-factorybeans-annotations]]
== Defining Bean Metadata within Components
@@ -1045,10 +649,10 @@ methods anywhere. However, regular `@Bean` methods in `@Configuration` classes n
to be overridable -- that is, they must not be declared as `private` or `final`.
`@Bean` methods are also discovered on base classes of a given component or
configuration class, as well as on Java default methods declared in interfaces
configuration class, as well as on Java 8 default methods declared in interfaces
implemented by the component or configuration class. This allows for a lot of
flexibility in composing complex configuration arrangements, with even multiple
inheritance being possible through Java default methods.
inheritance being possible through Java 8 default methods as of Spring 4.2.
Finally, a single class may hold multiple `@Bean` methods for the same
bean, as an arrangement of multiple factory methods to use depending on available
@@ -1057,3 +661,358 @@ constructor or factory method in other configuration scenarios: The variant with
the largest number of satisfiable dependencies is picked at construction time,
analogous to how the container selects between multiple `@Autowired` constructors.
====
[[beans-scanning-name-generator]]
== Naming Autodetected Components
When a component is autodetected as part of the scanning process, its bean name is
generated by the `BeanNameGenerator` strategy known to that scanner.
By default, the `AnnotationBeanNameGenerator` is used. For Spring
xref:core/beans/classpath-scanning.adoc#beans-stereotype-annotations[stereotype annotations],
if you supply a name via the annotation's `value` attribute that name will be used as
the name in the corresponding bean definition. This convention also applies when the
following JSR-250 and JSR-330 annotations are used instead of Spring stereotype
annotations: `@jakarta.annotation.ManagedBean`, `@javax.annotation.ManagedBean`,
`@jakarta.inject.Named`, and `@javax.inject.Named`.
As of Spring Framework 6.1, the name of the annotation attribute that is used to specify
the bean name is no longer required to be `value`. Custom stereotype annotations can
declare an attribute with a different name (such as `name`) and annotate that attribute
with `@AliasFor(annotation = Component.class, attribute = "value")`. See the source code
declaration of `ControllerAdvice#name()` for a concrete example.
[WARNING]
====
As of Spring Framework 6.1, support for convention-based stereotype names is deprecated
and will be removed in a future version of the framework. Consequently, custom stereotype
annotations must use `@AliasFor` to declare an explicit alias for the `value` attribute
in `@Component`. See the source code declaration of `Repository#value()` and
`ControllerAdvice#name()` for concrete examples.
====
If an explicit bean name cannot be derived from such an annotation or for any other
detected component (such as those discovered by custom filters), the default bean name
generator returns the uncapitalized non-qualified class name. For example, if the
following component classes were detected, the names would be `myMovieLister` and
`movieFinderImpl`.
[tabs]
======
Java::
+
[source,java,indent=0,subs="verbatim,quotes"]
----
@Service("myMovieLister")
public class SimpleMovieLister {
// ...
}
----
Kotlin::
+
[source,kotlin,indent=0,subs="verbatim,quotes"]
----
@Service("myMovieLister")
class SimpleMovieLister {
// ...
}
----
======
[tabs]
======
Java::
+
[source,java,indent=0,subs="verbatim,quotes"]
----
@Repository
public class MovieFinderImpl implements MovieFinder {
// ...
}
----
Kotlin::
+
[source,kotlin,indent=0,subs="verbatim,quotes"]
----
@Repository
class MovieFinderImpl : MovieFinder {
// ...
}
----
======
If you do not want to rely on the default bean-naming strategy, you can provide a custom
bean-naming strategy. First, implement the
{spring-framework-api}/beans/factory/support/BeanNameGenerator.html[`BeanNameGenerator`]
interface, and be sure to include a default no-arg constructor. Then, provide the fully
qualified class name when configuring the scanner, as the following example annotation
and bean definition show.
TIP: If you run into naming conflicts due to multiple autodetected components having the
same non-qualified class name (i.e., classes with identical names but residing in
different packages), you may need to configure a `BeanNameGenerator` that defaults to the
fully qualified class name for the generated bean name. The
`FullyQualifiedAnnotationBeanNameGenerator` located in package
`org.springframework.context.annotation` can be used for such purposes.
[tabs]
======
Java::
+
[source,java,indent=0,subs="verbatim,quotes"]
----
@Configuration
@ComponentScan(basePackages = "org.example", nameGenerator = MyNameGenerator.class)
public class AppConfig {
// ...
}
----
Kotlin::
+
[source,kotlin,indent=0,subs="verbatim,quotes"]
----
@Configuration
@ComponentScan(basePackages = ["org.example"], nameGenerator = MyNameGenerator::class)
class AppConfig {
// ...
}
----
======
[source,xml,indent=0,subs="verbatim,quotes"]
----
<beans>
<context:component-scan base-package="org.example"
name-generator="org.example.MyNameGenerator" />
</beans>
----
As a general rule, consider specifying the name with the annotation whenever other
components may be making explicit references to it. On the other hand, the
auto-generated names are adequate whenever the container is responsible for wiring.
[[beans-scanning-scope-resolver]]
== Providing a Scope for Autodetected Components
As with Spring-managed components in general, the default and most common scope for
autodetected components is `singleton`. However, sometimes you need a different scope
that can be specified by the `@Scope` annotation. You can provide the name of the
scope within the annotation, as the following example shows:
[tabs]
======
Java::
+
[source,java,indent=0,subs="verbatim,quotes"]
----
@Scope("prototype")
@Repository
public class MovieFinderImpl implements MovieFinder {
// ...
}
----
Kotlin::
+
[source,kotlin,indent=0,subs="verbatim,quotes"]
----
@Scope("prototype")
@Repository
class MovieFinderImpl : MovieFinder {
// ...
}
----
======
NOTE: `@Scope` annotations are only introspected on the concrete bean class (for annotated
components) or the factory method (for `@Bean` methods). In contrast to XML bean
definitions, there is no notion of bean definition inheritance, and inheritance
hierarchies at the class level are irrelevant for metadata purposes.
For details on web-specific scopes such as "`request`" or "`session`" in a Spring context,
see xref:core/beans/factory-scopes.adoc#beans-factory-scopes-other[Request, Session, Application, and WebSocket Scopes]. As with the pre-built annotations for those scopes,
you may also compose your own scoping annotations by using Spring's meta-annotation
approach: for example, a custom annotation meta-annotated with `@Scope("prototype")`,
possibly also declaring a custom scoped-proxy mode.
NOTE: To provide a custom strategy for scope resolution rather than relying on the
annotation-based approach, you can implement the
{spring-framework-api}/context/annotation/ScopeMetadataResolver.html[`ScopeMetadataResolver`]
interface. Be sure to include a default no-arg constructor. Then you can provide the
fully qualified class name when configuring the scanner, as the following example of both
an annotation and a bean definition shows:
[tabs]
======
Java::
+
[source,java,indent=0,subs="verbatim,quotes"]
----
@Configuration
@ComponentScan(basePackages = "org.example", scopeResolver = MyScopeResolver.class)
public class AppConfig {
// ...
}
----
Kotlin::
+
[source,kotlin,indent=0,subs="verbatim,quotes"]
----
@Configuration
@ComponentScan(basePackages = ["org.example"], scopeResolver = MyScopeResolver::class)
class AppConfig {
// ...
}
----
======
[source,xml,indent=0,subs="verbatim,quotes"]
----
<beans>
<context:component-scan base-package="org.example" scope-resolver="org.example.MyScopeResolver"/>
</beans>
----
When using certain non-singleton scopes, it may be necessary to generate proxies for the
scoped objects. The reasoning is described in xref:core/beans/factory-scopes.adoc#beans-factory-scopes-other-injection[Scoped Beans as Dependencies].
For this purpose, a scoped-proxy attribute is available on the component-scan
element. The three possible values are: `no`, `interfaces`, and `targetClass`. For example,
the following configuration results in standard JDK dynamic proxies:
[tabs]
======
Java::
+
[source,java,indent=0,subs="verbatim,quotes"]
----
@Configuration
@ComponentScan(basePackages = "org.example", scopedProxy = ScopedProxyMode.INTERFACES)
public class AppConfig {
// ...
}
----
Kotlin::
+
[source,kotlin,indent=0,subs="verbatim,quotes"]
----
@Configuration
@ComponentScan(basePackages = ["org.example"], scopedProxy = ScopedProxyMode.INTERFACES)
class AppConfig {
// ...
}
----
======
[source,xml,indent=0,subs="verbatim,quotes"]
----
<beans>
<context:component-scan base-package="org.example" scoped-proxy="interfaces"/>
</beans>
----
[[beans-scanning-qualifiers]]
== Providing Qualifier Metadata with Annotations
The `@Qualifier` annotation is discussed in
xref:core/beans/annotation-config/autowired-qualifiers.adoc[Fine-tuning Annotation-based Autowiring with Qualifiers].
The examples in that section demonstrate the use of the `@Qualifier` annotation and
custom qualifier annotations to provide fine-grained control when you resolve autowire
candidates. Because those examples were based on XML bean definitions, the qualifier
metadata was provided on the candidate bean definitions by using the `qualifier` or `meta`
child elements of the `bean` element in the XML. When relying upon classpath scanning for
auto-detection of components, you can provide the qualifier metadata with type-level
annotations on the candidate class. The following three examples demonstrate this
technique:
[tabs]
======
Java::
+
[source,java,indent=0,subs="verbatim,quotes"]
----
@Component
@Qualifier("Action")
public class ActionMovieCatalog implements MovieCatalog {
// ...
}
----
Kotlin::
+
[source,kotlin,indent=0,subs="verbatim,quotes"]
----
@Component
@Qualifier("Action")
class ActionMovieCatalog : MovieCatalog
----
======
[tabs]
======
Java::
+
[source,java,indent=0,subs="verbatim,quotes"]
----
@Component
@Genre("Action")
public class ActionMovieCatalog implements MovieCatalog {
// ...
}
----
Kotlin::
+
[source,kotlin,indent=0,subs="verbatim,quotes"]
----
@Component
@Genre("Action")
class ActionMovieCatalog : MovieCatalog {
// ...
}
----
======
[tabs]
======
Java::
+
[source,java,indent=0,subs="verbatim,quotes"]
----
@Component
@Offline
public class CachingMovieCatalog implements MovieCatalog {
// ...
}
----
Kotlin::
+
[source,kotlin,indent=0,subs="verbatim,quotes"]
----
@Component
@Offline
class CachingMovieCatalog : MovieCatalog {
// ...
}
----
======
NOTE: As with most annotation-based alternatives, keep in mind that the annotation metadata is
bound to the class definition itself, while the use of XML allows for multiple beans
of the same type to provide variations in their qualifier metadata, because that
metadata is provided per-instance rather than per-class.
@@ -24,6 +24,7 @@ package also provides the following functionality:
`HierarchicalBeanFactory` interface.
[[context-functionality-messagesource]]
== Internationalization using `MessageSource`
@@ -272,6 +273,7 @@ See the {spring-framework-api}/context/support/ReloadableResourceBundleMessageSo
javadoc for details.
[[context-functionality-events]]
== Standard and Custom Events
@@ -511,7 +513,7 @@ the classes above:
<property name="notificationAddress" value="blockedlist@example.org"/>
</bean>
<!-- optional: a custom ApplicationEventMulticaster definition -->
<!-- optional: a custom ApplicationEventMulticaster definition -->
<bean id="applicationEventMulticaster" class="org.springframework.context.event.SimpleApplicationEventMulticaster">
<property name="taskExecutor" ref="..."/>
<property name="errorHandler" ref="..."/>
@@ -532,6 +534,7 @@ complete support for building lightweight,
https://www.enterpriseintegrationpatterns.com[pattern-oriented], event-driven
architectures that build upon the well-known Spring programming model.
[[context-functionality-events-annotation]]
=== Annotation-based Event Listeners
@@ -575,8 +578,6 @@ Kotlin::
----
======
NOTE: Do not define such beans to be lazy as the `ApplicationContext` will honour that and will not register the method to listen to events.
The method signature once again declares the event type to which it listens,
but, this time, with a flexible name and without implementing a specific listener interface.
The event type can also be narrowed through generics as long as the actual event type
@@ -704,6 +705,7 @@ The `handleBlockedListEvent()` method publishes a new `ListUpdateEvent` for ever
`BlockedListEvent` that it handles. If you need to publish several events, you can return
a `Collection` or an array of events instead.
[[context-functionality-events-async]]
=== Asynchronous Listeners
@@ -750,6 +752,7 @@ Be aware of the following limitations when using asynchronous events:
See xref:integration/observability.adoc#observability.application-events[the `@EventListener` Observability section]
for more information on Observability concerns.
[[context-functionality-events-order]]
=== Ordering Listeners
@@ -781,6 +784,7 @@ Kotlin::
----
======
[[context-functionality-events-generics]]
=== Generic Events
@@ -874,6 +878,7 @@ for example, for processing all events asynchronously and/or for handling listen
----
[[context-functionality-resources]]
== Convenient Access to Low-level Resources
@@ -906,6 +911,7 @@ with special prefixes to force loading of definitions from the classpath or a UR
regardless of the actual context type.
[[context-functionality-startup]]
== Application Startup Tracking
@@ -933,12 +939,13 @@ Java::
[source,java,indent=0,subs="verbatim,quotes"]
----
// create a startup step and start recording
try (StartupStep scanPackages = getApplicationStartup().start("spring.context.base-packages.scan")) {
// add tagging information to the current step
scanPackages.tag("packages", () -> Arrays.toString(basePackages));
// perform the actual phase we're instrumenting
this.scanner.scan(basePackages);
}
StartupStep scanPackages = getApplicationStartup().start("spring.context.base-packages.scan");
// add tagging information to the current step
scanPackages.tag("packages", () -> Arrays.toString(basePackages));
// perform the actual phase we're instrumenting
this.scanner.scan(basePackages);
// end the current step
scanPackages.end();
----
Kotlin::
@@ -946,12 +953,13 @@ Kotlin::
[source,kotlin,indent=0,subs="verbatim,quotes"]
----
// create a startup step and start recording
try (val scanPackages = getApplicationStartup().start("spring.context.base-packages.scan")) {
// add tagging information to the current step
scanPackages.tag("packages", () -> Arrays.toString(basePackages));
// perform the actual phase we're instrumenting
this.scanner.scan(basePackages);
}
val scanPackages = getApplicationStartup().start("spring.context.base-packages.scan")
// add tagging information to the current step
scanPackages.tag("packages", () -> Arrays.toString(basePackages))
// perform the actual phase we're instrumenting
this.scanner.scan(basePackages)
// end the current step
scanPackages.end()
----
======
@@ -980,7 +988,6 @@ or ask for the `ApplicationStartup` type on any injection point.
NOTE: Developers should not use the `"spring.*"` namespace when creating custom startup steps.
This namespace is reserved for internal Spring usage and is subject to change.
[[context-create]]
== Convenient ApplicationContext Instantiation for Web Applications
@@ -1013,6 +1020,7 @@ Examples are `/WEB-INF/{asterisk}Context.xml` (for all files with names that end
(for all such files in any subdirectory of `WEB-INF`).
[[context-deploy-rar]]
== Deploying a Spring `ApplicationContext` as a Jakarta EE RAR File
@@ -1043,8 +1051,7 @@ all application classes into a RAR file (which is a standard JAR file with a dif
file extension).
. Add all required library JARs into the root of the RAR archive.
. Add a
`META-INF/ra.xml` deployment descriptor (as shown in the
{spring-framework-api}/jca/context/SpringContextResourceAdapter.html[javadoc for `SpringContextResourceAdapter`])
`META-INF/ra.xml` deployment descriptor (as shown in the {spring-framework-api}/jca/context/SpringContextResourceAdapter.html[javadoc for `SpringContextResourceAdapter`])
and the corresponding Spring XML bean definition file(s) (typically
`META-INF/applicationContext.xml`).
. Drop the resulting RAR file into your
@@ -1057,3 +1064,7 @@ other modules. A RAR-based `ApplicationContext` may also, for example, schedule
or react to new files in the file system (or the like). If it needs to allow synchronous
access from the outside, it could (for example) export RMI endpoints, which may be used
by other application modules on the same machine.
@@ -45,5 +45,8 @@ xref:data-access/orm/jpa.adoc[Spring's JPA support] where load-time weaving may
necessary for JPA class transformation.
Consult the
{spring-framework-api}/orm/jpa/LocalContainerEntityManagerFactoryBean.html[`LocalContainerEntityManagerFactoryBean`]
javadoc for more detail. For more on AspectJ load-time weaving, see
xref:core/aop/using-aspectj.adoc#aop-aj-ltw[Load-time Weaving with AspectJ in the Spring Framework].
javadoc for more detail. For more on AspectJ load-time weaving, see xref:core/aop/using-aspectj.adoc#aop-aj-ltw[Load-time Weaving with AspectJ in the Spring Framework].
@@ -57,9 +57,9 @@ The following table describes these properties:
In addition to bean definitions that contain information on how to create a specific
bean, the `ApplicationContext` implementations also permit the registration of existing
objects that are created outside the container (by users). This is done by accessing the
ApplicationContext's `BeanFactory` through the `getAutowireCapableBeanFactory()` method,
which returns the `DefaultListableBeanFactory` implementation. `DefaultListableBeanFactory`
supports this registration through the `registerSingleton(..)` and `registerBeanDefinition(..)`
ApplicationContext's `BeanFactory` through the `getBeanFactory()` method, which returns
the `DefaultListableBeanFactory` implementation. `DefaultListableBeanFactory` supports
this registration through the `registerSingleton(..)` and `registerBeanDefinition(..)`
methods. However, typical applications work solely with beans defined through regular
bean definition metadata.
@@ -74,6 +74,7 @@ lead to concurrent access exceptions, inconsistent state in the bean container,
====
[[beans-definition-overriding]]
== Overriding Beans
@@ -99,10 +100,11 @@ the `@Bean` factory method in favor of any pre-declared constructor on the bean
****
NOTE: We acknowledge that overriding beans in test scenarios is convenient, and there is
explicit support for this. Please refer to
explicit support for this as of Spring Framework 6.2. Please refer to
xref:testing/testcontext-framework/bean-overriding.adoc[this section] for more details.
[[beans-beanname]]
== Naming Beans
@@ -145,6 +147,7 @@ case when there is more than one character and both the first and second charact
are upper case, the original casing gets preserved. These are the same rules as
defined by `java.beans.Introspector.decapitalize` (which Spring uses here).
[[beans-beanname-alias]]
=== Aliasing a Bean outside the Bean Definition
@@ -194,6 +197,7 @@ See xref:core/beans/java/bean-annotation.adoc[Using the `@Bean` Annotation] for
****
[[beans-factory-class]]
== Instantiating Beans
@@ -205,8 +209,7 @@ If you use XML-based configuration metadata, you specify the type (or class) of
that is to be instantiated in the `class` attribute of the `<bean/>` element. This
`class` attribute (which, internally, is a `Class` property on a `BeanDefinition`
instance) is usually mandatory. (For exceptions, see
xref:core/beans/definition.adoc#beans-factory-class-instance-factory-method[Instantiation by Using an Instance Factory Method]
and xref:core/beans/child-bean-definitions.adoc[Bean Definition Inheritance].)
xref:core/beans/definition.adoc#beans-factory-class-instance-factory-method[Instantiation by Using an Instance Factory Method] and xref:core/beans/child-bean-definitions.adoc[Bean Definition Inheritance].)
You can use the `Class` property in one of two ways:
* Typically, to specify the bean class to be constructed in the case where the container
@@ -230,6 +233,7 @@ a bean definition would be `com.example.SomeThing$OtherThing` or
`com.example.SomeThing.OtherThing`.
****
[[beans-factory-class-ctor]]
=== Instantiation with a Constructor
@@ -264,6 +268,7 @@ NOTE: In the case of constructor arguments, the container can select a correspon
constructor among several overloaded constructors. That said, to avoid ambiguities,
it is recommended to keep your constructor signatures as straightforward as possible.
[[beans-factory-class-static-factory-method]]
=== Instantiation with a Static Factory Method
@@ -341,6 +346,7 @@ overloads of the `mock` method. Choose the most specific variant of `mock` possi
----
====
[[beans-factory-class-instance-factory-method]]
=== Instantiation by Using an Instance Factory Method
@@ -472,6 +478,7 @@ xref:core/beans/definition.adoc#beans-factory-class-static-factory-method[static
`FactoryBean` (notice the capitalization) refers to a Spring-specific
xref:core/beans/factory-extension.adoc#beans-factory-extension-factorybean[`FactoryBean`] implementation class.
[[beans-factory-type-determination]]
=== Determining a Bean's Runtime Type
@@ -487,3 +494,5 @@ The recommended way to find out about the actual runtime type of a particular be
a `BeanFactory.getType` call for the specified bean name. This takes all of the above
cases into account and returns the type of object that a `BeanFactory.getBean` call is
going to return for the same bean name.
@@ -7,3 +7,6 @@ Spring parlance). Even the simplest application has a few objects that work toge
present what the end-user sees as a coherent application. This next section explains how
you go from defining a number of bean definitions that stand alone to a fully realized
application where objects collaborate to achieve a goal.
@@ -16,8 +16,7 @@ advantages:
during development, without negating the option of switching to explicit wiring when
the code base becomes more stable.
When using XML-based configuration metadata (see
xref:core/beans/dependencies/factory-collaborators.adoc[Dependency Injection]), you
When using XML-based configuration metadata (see xref:core/beans/dependencies/factory-collaborators.adoc[Dependency Injection]), you
can specify the autowire mode for a bean definition with the `autowire` attribute of the
`<bean/>` element. The autowiring functionality has four modes. You specify autowiring
per bean and can thus choose which ones to autowire. The following table describes the
@@ -61,6 +60,7 @@ instance's values consist of all bean instances that match the expected type, an
`Map` instance's keys contain the corresponding bean names.
[[beans-autowired-exceptions]]
== Limitations and Disadvantages of Autowiring
@@ -90,14 +90,14 @@ In the latter scenario, you have several options:
* Abandon autowiring in favor of explicit wiring.
* Avoid autowiring for a bean definition by setting its `autowire-candidate` attributes
to `false`, as described in the
xref:core/beans/dependencies/factory-autowire.adoc#beans-factory-autowire-candidate[next section].
to `false`, as described in the xref:core/beans/dependencies/factory-autowire.adoc#beans-factory-autowire-candidate[next section].
* Designate a single bean definition as the primary candidate by setting the
`primary` attribute of its `<bean/>` element to `true`.
* Implement the more fine-grained control available with annotation-based configuration,
as described in xref:core/beans/annotation-config.adoc[Annotation-based Container Configuration].
[[beans-factory-autowire-candidate]]
== Excluding a Bean from Autowiring
@@ -139,3 +139,6 @@ get injected by plain declared type only, rather by type plus specific qualifier
In contrast, `autowireCandidate=false` behaves exactly like the `autowire-candidate`
attribute as explained above: Such a bean will never get injected by type at all.
====
@@ -16,9 +16,8 @@ not know the location or class of the dependencies. As a result, your classes be
to test, particularly when the dependencies are on interfaces or abstract base classes,
which allow for stub or mock implementations to be used in unit tests.
DI exists in two major variants:
xref:core/beans/dependencies/factory-collaborators.adoc#beans-constructor-injection[Constructor-based dependency injection]
and xref:core/beans/dependencies/factory-collaborators.adoc#beans-setter-injection[Setter-based dependency injection].
DI exists in two major variants: xref:core/beans/dependencies/factory-collaborators.adoc#beans-constructor-injection[Constructor-based dependency injection]
and xref:core/beans/dependencies/factory-collaborators.adoc#beans-setter-injection[Setter-based dependency injection].
[[beans-constructor-injection]]
@@ -607,3 +606,6 @@ contains the `static` factory method (although, in this example, it is). An inst
(non-static) factory method can be used in an essentially identical fashion (aside
from the use of the `factory-bean` attribute instead of the `class` attribute), so we
do not discuss those details here.
@@ -3,7 +3,7 @@
If a bean is a dependency of another bean, that usually means that one bean is set as a
property of another. Typically you accomplish this with the
xref:core/beans/dependencies/factory-properties-detailed.adoc#beans-ref-element[`<ref/>` element]
xref:core/beans/dependencies/factory-properties-detailed.adoc#beans-ref-element[`<ref/>` element>]
in XML-based metadata or through xref:core/beans/dependencies/factory-autowire.adoc[autowiring].
However, sometimes dependencies between beans are less direct. An example is when a static
@@ -37,3 +37,6 @@ in the case of xref:core/beans/factory-scopes.adoc#beans-factory-scopes-singleto
beans only, a corresponding destruction-time dependency. Dependent beans that define a
`depends-on` relationship with a given bean are destroyed first, prior to the given bean
itself being destroyed. Thus, `depends-on` can also control shutdown order.
@@ -29,3 +29,6 @@ annotated class or in XML using the `default-lazy-init` attribute on the `<beans
shows:
include-code::./LazyConfiguration[tag=snippet,indent=0]

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