diff --git a/spring-jdbc/src/main/java/org/springframework/jdbc/support/incrementer/SqliteMaxValueIncrementer.java b/spring-jdbc/src/main/java/org/springframework/jdbc/support/incrementer/SqliteMaxValueIncrementer.java new file mode 100644 index 00000000000..245f53f267d --- /dev/null +++ b/spring-jdbc/src/main/java/org/springframework/jdbc/support/incrementer/SqliteMaxValueIncrementer.java @@ -0,0 +1,85 @@ +/* + * 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.jdbc.support.incrementer; + +import java.sql.Connection; +import java.sql.ResultSet; +import java.sql.SQLException; +import java.sql.Statement; + +import javax.sql.DataSource; + +import org.springframework.dao.DataAccessResourceFailureException; +import org.springframework.jdbc.datasource.DataSourceUtils; +import org.springframework.jdbc.support.JdbcUtils; + +/** + * {@link DataFieldMaxValueIncrementer} that increments the maximum value of a given table with + * the equivalent of an auto-increment column, using a SQLite {@code select max(rowid)} query. + * + * @author Luke Taylor + * @author Juergen Hoeller + * @since 7.0 + */ +public class SqliteMaxValueIncrementer extends AbstractColumnMaxValueIncrementer { + + /** + * Default constructor for bean property style usage. + * @see #setDataSource + * @see #setIncrementerName + * @see #setColumnName + */ + public SqliteMaxValueIncrementer() { + } + + /** + * Convenience constructor. + * @param dataSource the DataSource to use + * @param incrementerName the name of the sequence/table to use + * @param columnName the name of the column in the sequence table to use + */ + public SqliteMaxValueIncrementer(DataSource dataSource, String incrementerName, String columnName) { + super(dataSource, incrementerName, columnName); + } + + + @Override + protected long getNextKey() { + Connection con = DataSourceUtils.getConnection(getDataSource()); + Statement stmt = null; + try { + stmt = con.createStatement(); + DataSourceUtils.applyTransactionTimeout(stmt, getDataSource()); + stmt.executeUpdate("insert into " + getIncrementerName() + " values(null)"); + ResultSet rs = stmt.executeQuery("select max(rowid) from " + getIncrementerName()); + if (!rs.next()) { + throw new DataAccessResourceFailureException("rowid query failed after executing an update"); + } + long nextKey = rs.getLong(1); + stmt.executeUpdate("delete from " + getIncrementerName() + " where " + getColumnName() + " < " + nextKey); + return nextKey; + } + catch (SQLException ex) { + throw new DataAccessResourceFailureException("Could not obtain rowid", ex); + } + finally { + JdbcUtils.closeStatement(stmt); + DataSourceUtils.releaseConnection(con, getDataSource()); + } + } + +}