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Yasuhiro KIMURA
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477 lines
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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 HeapStats" class="title">Class HeapStats</h2>
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<ul class="inheritance">
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<li>java.lang.Object</li>
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<li><a href="DatabaseStats.html" title="class in com.sleepycat.db">com.sleepycat.db.DatabaseStats</a></li>
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<pre>public class <span class="typeNameLabel">HeapStats</span>
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extends <a href="DatabaseStats.html" title="class in com.sleepycat.db">DatabaseStats</a></pre>
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<div class="block">The HeapStats object is used to return Heap database statistics.</div>
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<h3>Method Summary</h3>
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<table class="memberSummary" summary="Method Summary table, listing methods, and an explanation">
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<caption><span id="t0" class="activeTableTab"><span>All Methods</span><span class="tabEnd"> </span></span><span id="t2" class="tableTab"><span><a href="javascript:show(2);">Instance Methods</a></span><span class="tabEnd"> </span></span><span id="t4" class="tableTab"><span><a href="javascript:show(8);">Concrete Methods</a></span><span class="tabEnd"> </span></span></caption>
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<tr>
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<th class="colFirst" scope="col">Modifier and Type</th>
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<th class="colSecond" scope="col">Method</th>
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<th class="colLast" scope="col">Description</th>
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</tr>
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<tr id="i0" class="altColor">
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<td class="colFirst"><code>int</code></td>
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<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#getHeapExtFiles--">getHeapExtFiles</a></span>()</code></th>
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<td class="colLast">
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<div class="block">The number of external files.</div>
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</td>
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</tr>
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<tr id="i1" class="rowColor">
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<td class="colFirst"><code>int</code></td>
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<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#getHeapMagic--">getHeapMagic</a></span>()</code></th>
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<td class="colLast">
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<div class="block">Magic number that identifies the file as a Heap file.</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>int</code></td>
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<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#getHeapMetaFlags--">getHeapMetaFlags</a></span>()</code></th>
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<td class="colLast">
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<div class="block">Reports internal flags.</div>
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</td>
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<tr id="i3" class="rowColor">
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<td class="colFirst"><code>int</code></td>
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<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#getHeapNumBlobs--">getHeapNumBlobs</a></span>()</code></th>
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<td class="colLast"> </td>
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</tr>
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<tr id="i4" class="altColor">
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<td class="colFirst"><code>int</code></td>
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<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#getHeapNumRecs--">getHeapNumRecs</a></span>()</code></th>
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<td class="colLast">
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<div class="block">Reports the number of records in the Heap database.</div>
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</td>
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</tr>
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<tr id="i5" class="rowColor">
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<td class="colFirst"><code>int</code></td>
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<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#getHeapNumRegions--">getHeapNumRegions</a></span>()</code></th>
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<td class="colLast">
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<div class="block">The number of regions in the Heap database.</div>
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</td>
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</tr>
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<tr id="i6" class="altColor">
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<td class="colFirst"><code>int</code></td>
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<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#getHeapPageCount--">getHeapPageCount</a></span>()</code></th>
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<td class="colLast">
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<div class="block">The number of pages in the database.</div>
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</td>
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</tr>
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<tr id="i7" class="rowColor">
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<td class="colFirst"><code>int</code></td>
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<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#getHeapPageSize--">getHeapPageSize</a></span>()</code></th>
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<td class="colLast">
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<div class="block">The underlying database page (and bucket) size, in bytes.</div>
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</td>
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</tr>
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<tr id="i8" class="altColor">
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<td class="colFirst"><code>int</code></td>
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<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#getHeapRegionSize--">getHeapRegionSize</a></span>()</code></th>
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<td class="colLast">
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<div class="block">The number of pages in a region in the Heap database.</div>
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</td>
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</tr>
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<tr id="i9" class="rowColor">
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<td class="colFirst"><code>int</code></td>
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<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#getHeapVersion--">getHeapVersion</a></span>()</code></th>
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<td class="colLast">
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<div class="block">The version of the Heap database.</div>
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</td>
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</tr>
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<tr id="i10" class="altColor">
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<td class="colFirst"><code>java.lang.String</code></td>
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<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#toString--">toString</a></span>()</code></th>
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<td class="colLast">
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<div class="block">For convenience, the HeapStats class has a toString method
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that lists all the data fields.</div>
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</td>
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<h3>Methods inherited from class java.lang.Object</h3>
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<code>clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait</code></li>
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<pre class="methodSignature">public int getHeapMagic()</pre>
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<div class="block">Magic number that identifies the file as a Heap file.</div>
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<dl>
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<dt><span class="returnLabel">Returns:</span></dt>
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<dd>magic number that identifies the file as a Heap file</dd>
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<div class="block">The version of the Heap database.</div>
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<dl>
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<dt><span class="returnLabel">Returns:</span></dt>
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<dd>the version of the Heap database</dd>
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<pre class="methodSignature">public int getHeapMetaFlags()</pre>
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<div class="block">Reports internal flags. For internal use only.</div>
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<dl>
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<dt><span class="returnLabel">Returns:</span></dt>
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<dd>internal flags</dd>
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<pre class="methodSignature">public int getHeapExtFiles()</pre>
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<div class="block">The number of external files.</div>
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<dl>
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<dt><span class="returnLabel">Returns:</span></dt>
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<dd>the number of external files</dd>
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<pre class="methodSignature">public int getHeapNumBlobs()</pre>
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<pre class="methodSignature">public int getHeapNumRecs()</pre>
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<div class="block">Reports the number of records in the Heap database.</div>
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<dl>
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<dt><span class="returnLabel">Returns:</span></dt>
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<dd>the number of records in the Heap database</dd>
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<h4>getHeapPageCount</h4>
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<pre class="methodSignature">public int getHeapPageCount()</pre>
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<div class="block">The number of pages in the database.</div>
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<dl>
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<dt><span class="returnLabel">Returns:</span></dt>
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<dd>the number of pages in the database</dd>
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<h4>getHeapPageSize</h4>
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<pre class="methodSignature">public int getHeapPageSize()</pre>
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<div class="block">The underlying database page (and bucket) size, in bytes.</div>
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<dl>
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<dt><span class="returnLabel">Returns:</span></dt>
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<dd>the underlying database page size, in bytes</dd>
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</dl>
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<h4>getHeapNumRegions</h4>
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<pre class="methodSignature">public int getHeapNumRegions()</pre>
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<div class="block">The number of regions in the Heap database.</div>
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<dl>
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<dt><span class="returnLabel">Returns:</span></dt>
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<dd>the number of regions in the Heap database</dd>
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<h4>getHeapRegionSize</h4>
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<pre class="methodSignature">public int getHeapRegionSize()</pre>
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<div class="block">The number of pages in a region in the Heap database. Returned if
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DB_FAST_STAT is set.</div>
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<dl>
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<dt><span class="returnLabel">Returns:</span></dt>
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<dd>the number of pages in a region in the Heap database</dd>
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</dl>
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<h4>toString</h4>
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<pre class="methodSignature">public java.lang.String toString()</pre>
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<div class="block">For convenience, the HeapStats class has a toString method
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that lists all the data fields.</div>
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<dl>
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<dt><span class="overrideSpecifyLabel">Overrides:</span></dt>
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<dd><code>toString</code> in class <code>java.lang.Object</code></dd>
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<dt><span class="returnLabel">Returns:</span></dt>
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<dd>a String that lists all the data fields</dd>
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</dl>
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</li>
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</ul>
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</li>
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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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