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Yasuhiro KIMURA
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<div class="aboutLanguage"><b>Berkeley DB</b><br><font size="-1"> version 18.1.40</font></div>
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<div class="subTitle"><span class="packageLabelInType">Package</span> <a href="package-summary.html">com.sleepycat.db</a></div>
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<h2 title="Class StatsConfig" class="title">Class StatsConfig</h2>
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<pre>public class <span class="typeNameLabel">StatsConfig</span>
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extends java.lang.Object</pre>
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<div class="block">Specifies the attributes of a statistics retrieval operation.</div>
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<td class="colFirst"><code>static <a href="StatsConfig.html" title="class in com.sleepycat.db">StatsConfig</a></code></td>
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<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#DEFAULT">DEFAULT</a></span></code></th>
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<th class="colConstructorName" scope="row"><code><span class="memberNameLink"><a href="#StatsConfig--">StatsConfig</a></span>()</code></th>
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<div class="block">An instance created using the default constructor is initialized
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<th class="colFirst" scope="col">Modifier and Type</th>
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<th class="colLast" scope="col">Description</th>
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<tr id="i0" class="altColor">
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<td class="colFirst"><code>boolean</code></td>
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<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#getClear--">getClear</a></span>()</code></th>
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<td class="colLast">
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<div class="block">Return if the statistics operation is configured to reset
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statistics after they are returned.</div>
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</td>
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<tr id="i1" class="rowColor">
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<td class="colFirst"><code>boolean</code></td>
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<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#getFast--">getFast</a></span>()</code></th>
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<td class="colLast">
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<div class="block">Return if the statistics operation is configured to return only the
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values which do not require expensive actions.</div>
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</td>
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</tr>
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<tr id="i2" class="altColor">
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<td class="colFirst"><code>void</code></td>
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<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#setClear-boolean-">setClear</a></span>​(boolean clear)</code></th>
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<td class="colLast">
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<div class="block">Configure the statistics operation to reset statistics after they
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are returned.</div>
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</td>
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</tr>
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<tr id="i3" class="rowColor">
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<td class="colFirst"><code>void</code></td>
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<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#setFast-boolean-">setFast</a></span>​(boolean fast)</code></th>
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<td class="colLast">
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<div class="block">Configure the statistics operation to return only the values which
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do not incur some performance penalty.</div>
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</td>
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<code>clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait</code></li>
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<h4>DEFAULT</h4>
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<pre>public static final <a href="StatsConfig.html" title="class in com.sleepycat.db">StatsConfig</a> DEFAULT</pre>
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<h4>StatsConfig</h4>
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<pre>public StatsConfig()</pre>
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<div class="block">An instance created using the default constructor is initialized
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with the system's default settings.</div>
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<h4>setClear</h4>
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<pre class="methodSignature">public void setClear​(boolean clear)</pre>
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<div class="block">Configure the statistics operation to reset statistics after they
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are returned. The default value is false.
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<p></div>
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<dl>
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<dt><span class="paramLabel">Parameters:</span></dt>
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<dd><code>clear</code> - If set to true, configure the statistics operation to reset
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statistics after they are returned.</dd>
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</dl>
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<pre class="methodSignature">public boolean getClear()</pre>
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<div class="block">Return if the statistics operation is configured to reset
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statistics after they are returned.
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<p></div>
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<dl>
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<dt><span class="returnLabel">Returns:</span></dt>
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<dd>If the statistics operation is configured to reset statistics after
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they are returned.</dd>
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</dl>
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<h4>setFast</h4>
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<pre class="methodSignature">public void setFast​(boolean fast)</pre>
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<div class="block">Configure the statistics operation to return only the values which
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do not incur some performance penalty.
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<p>
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The default value is false.
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<p>
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For example, skip stats that require a traversal of the database or
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in-memory tree, or which lock down the lock table for a period of
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time.
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<p>
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Among other things, this flag makes it possible for applications to
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request key and record counts without incurring the performance
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penalty of traversing the entire database. If the underlying
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database is of type Recno, or of type Btree and the database was
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configured to support retrieval by record number, the count of keys
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will be exact. Otherwise, the count of keys will be the value saved
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the last time the database was traversed, or 0 if no count of keys
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has ever been made. If the underlying database is of type Recno,
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the count of data items will be exact, otherwise, the count of data
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items will be the value saved the last time the database was
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traversed, or 0 if no count of data items has ever been done.
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<p></div>
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<dl>
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<dt><span class="paramLabel">Parameters:</span></dt>
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<dd><code>fast</code> - If set to true, configure the statistics operation to return only
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the values which do not incur some performance penalty.</dd>
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</dl>
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<h4>getFast</h4>
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<pre class="methodSignature">public boolean getFast()</pre>
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<div class="block">Return if the statistics operation is configured to return only the
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values which do not require expensive actions.
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<p></div>
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<dl>
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<dt><span class="returnLabel">Returns:</span></dt>
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<dd>If the statistics operation is configured to return only the values
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which do not require expensive actions.</dd>
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</dl>
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</li>
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