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db6.1-java-devel-6.1.29.0-1.x86_64.rpm

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<div class="aboutLanguage"><em><b>Berkeley DB</b><br><font size="-1"> version 6.1.29</font></em></div>
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<div class="subTitle">com.sleepycat.db</div>
<h2 title="Class BtreeStats" class="title">Class BtreeStats</h2>
</div>
<div class="contentContainer">
<ul class="inheritance">
<li>java.lang.Object</li>
<li>
<ul class="inheritance">
<li><a href="../../../com/sleepycat/db/DatabaseStats.html" title="class in com.sleepycat.db">com.sleepycat.db.DatabaseStats</a></li>
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<ul class="inheritance">
<li>com.sleepycat.db.BtreeStats</li>
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<pre>public class <span class="strong">BtreeStats</span>
extends <a href="../../../com/sleepycat/db/DatabaseStats.html" title="class in com.sleepycat.db">DatabaseStats</a></pre>
<div class="block">The BtreeStats object is used to return Btree
or Recno database statistics.</div>
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</ul>
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<h3>Method Summary</h3>
<table class="overviewSummary" border="0" cellpadding="3" cellspacing="0" summary="Method Summary table, listing methods, and an explanation">
<caption><span>Methods</span><span class="tabEnd">&nbsp;</span></caption>
<tr>
<th class="colFirst" scope="col">Modifier and Type</th>
<th class="colLast" scope="col">Method and Description</th>
</tr>
<tr class="altColor">
<td class="colFirst"><code>int</code></td>
<td class="colLast"><code><strong><a href="../../../com/sleepycat/db/BtreeStats.html#getDupPages()">getDupPages</a></strong>()</code>
<div class="block">The number of database duplicate pages.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>long</code></td>
<td class="colLast"><code><strong><a href="../../../com/sleepycat/db/BtreeStats.html#getDupPagesFree()">getDupPagesFree</a></strong>()</code>
<div class="block">The number of bytes free in database duplicate pages.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>int</code></td>
<td class="colLast"><code><strong><a href="../../../com/sleepycat/db/BtreeStats.html#getEmptyPages()">getEmptyPages</a></strong>()</code>
<div class="block">The number of empty database pages.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>int</code></td>
<td class="colLast"><code><strong><a href="../../../com/sleepycat/db/BtreeStats.html#getFree()">getFree</a></strong>()</code>
<div class="block">The number of pages on the free list.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>int</code></td>
<td class="colLast"><code><strong><a href="../../../com/sleepycat/db/BtreeStats.html#getIntPages()">getIntPages</a></strong>()</code>
<div class="block">The number of database internal pages.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>long</code></td>
<td class="colLast"><code><strong><a href="../../../com/sleepycat/db/BtreeStats.html#getIntPagesFree()">getIntPagesFree</a></strong>()</code>
<div class="block">The number of bytes free in database internal pages.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>int</code></td>
<td class="colLast"><code><strong><a href="../../../com/sleepycat/db/BtreeStats.html#getLeafPages()">getLeafPages</a></strong>()</code>
<div class="block">The number of database leaf pages.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>long</code></td>
<td class="colLast"><code><strong><a href="../../../com/sleepycat/db/BtreeStats.html#getLeafPagesFree()">getLeafPagesFree</a></strong>()</code>
<div class="block">The number of bytes free in database leaf pages.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>int</code></td>
<td class="colLast"><code><strong><a href="../../../com/sleepycat/db/BtreeStats.html#getLevels()">getLevels</a></strong>()</code>
<div class="block">The number of levels in the database.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>int</code></td>
<td class="colLast"><code><strong><a href="../../../com/sleepycat/db/BtreeStats.html#getMagic()">getMagic</a></strong>()</code>
<div class="block">The magic number that identifies the file as a Btree database.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>int</code></td>
<td class="colLast"><code><strong><a href="../../../com/sleepycat/db/BtreeStats.html#getMetaFlags()">getMetaFlags</a></strong>()</code>
<div class="block">Reports internal flags.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>int</code></td>
<td class="colLast"><code><strong><a href="../../../com/sleepycat/db/BtreeStats.html#getMinKey()">getMinKey</a></strong>()</code>
<div class="block">The minimum keys per page.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>int</code></td>
<td class="colLast"><code><strong><a href="../../../com/sleepycat/db/BtreeStats.html#getNumBlobs()">getNumBlobs</a></strong>()</code>
<div class="block">The number of blob records.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>int</code></td>
<td class="colLast"><code><strong><a href="../../../com/sleepycat/db/BtreeStats.html#getNumData()">getNumData</a></strong>()</code>
<div class="block">The number of key/data pairs or records in the database.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>int</code></td>
<td class="colLast"><code><strong><a href="../../../com/sleepycat/db/BtreeStats.html#getNumKeys()">getNumKeys</a></strong>()</code>
<div class="block">The number of keys or records in the database.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>int</code></td>
<td class="colLast"><code><strong><a href="../../../com/sleepycat/db/BtreeStats.html#getOverPages()">getOverPages</a></strong>()</code>
<div class="block">The number of database overflow pages.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>long</code></td>
<td class="colLast"><code><strong><a href="../../../com/sleepycat/db/BtreeStats.html#getOverPagesFree()">getOverPagesFree</a></strong>()</code>
<div class="block">The number of bytes free in database overflow pages.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>int</code></td>
<td class="colLast"><code><strong><a href="../../../com/sleepycat/db/BtreeStats.html#getPageCount()">getPageCount</a></strong>()</code>
<div class="block">The number of pages in the database.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>int</code></td>
<td class="colLast"><code><strong><a href="../../../com/sleepycat/db/BtreeStats.html#getPageSize()">getPageSize</a></strong>()</code>
<div class="block">The underlying database page size, in bytes.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>int</code></td>
<td class="colLast"><code><strong><a href="../../../com/sleepycat/db/BtreeStats.html#getReLen()">getReLen</a></strong>()</code>
<div class="block">The length of fixed-length records.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>int</code></td>
<td class="colLast"><code><strong><a href="../../../com/sleepycat/db/BtreeStats.html#getRePad()">getRePad</a></strong>()</code>
<div class="block">The padding byte value for fixed-length records.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>int</code></td>
<td class="colLast"><code><strong><a href="../../../com/sleepycat/db/BtreeStats.html#getVersion()">getVersion</a></strong>()</code>
<div class="block">The version of the Btree database.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>java.lang.String</code></td>
<td class="colLast"><code><strong><a href="../../../com/sleepycat/db/BtreeStats.html#toString()">toString</a></strong>()</code>
<div class="block">For convenience, the BtreeStats class has a toString method
    that lists all the data fields.</div>
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</tr>
</table>
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<h3>Methods inherited from class&nbsp;java.lang.Object</h3>
<code>clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait</code></li>
</ul>
</li>
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<h3>Method Detail</h3>
<a name="getMagic()">
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<h4>getMagic</h4>
<pre>public&nbsp;int&nbsp;getMagic()</pre>
<div class="block">The magic number that identifies the file as a Btree database.</div>
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<a name="getVersion()">
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<h4>getVersion</h4>
<pre>public&nbsp;int&nbsp;getVersion()</pre>
<div class="block">The version of the Btree database.</div>
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<h4>getMetaFlags</h4>
<pre>public&nbsp;int&nbsp;getMetaFlags()</pre>
<div class="block">Reports internal flags. For internal use only.</div>
</li>
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<a name="getNumKeys()">
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<h4>getNumKeys</h4>
<pre>public&nbsp;int&nbsp;getNumKeys()</pre>
<div class="block">The number of keys or records in the database.
    <p>
    For the Btree Access Method, the number of keys in the database.  If
    the <a href="../../../com/sleepycat/db/Database.html#getStats(com.sleepycat.db.Transaction,%20com.sleepycat.db.StatsConfig)"><code>Database.getStats</code></a> call was not configured by the
    <a href="../../../com/sleepycat/db/StatsConfig.html#setFast(boolean)"><code>StatsConfig.setFast</code></a> method or the database was configured
    to support retrieval by record number, the count will be exact.
    Otherwise, the count will be the last saved value unless it has
    never been calculated, in which case it will be 0.
    <p>
    For the Recno Access Method, the number of records in the database.
    If the database was configured with mutable record numbers the count
    will be exact.  Otherwise, if the <a href="../../../com/sleepycat/db/Database.html#getStats(com.sleepycat.db.Transaction,%20com.sleepycat.db.StatsConfig)"><code>Database.getStats</code></a> call
    was configured by the <a href="../../../com/sleepycat/db/StatsConfig.html#setFast(boolean)"><code>StatsConfig.setFast</code></a> method, the
    count will be exact but will include deleted records; if the
    <a href="../../../com/sleepycat/db/Database.html#getStats(com.sleepycat.db.Transaction,%20com.sleepycat.db.StatsConfig)"><code>Database.getStats</code></a> call was not configured by the
    <a href="../../../com/sleepycat/db/StatsConfig.html#setFast(boolean)"><code>StatsConfig.setFast</code></a> method, the count will be exact and
    will not include deleted records.</div>
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<h4>getNumData</h4>
<pre>public&nbsp;int&nbsp;getNumData()</pre>
<div class="block">The number of key/data pairs or records in the database.
    <p>
    For the Btree Access Method, the number of key/data pairs in the
    database.  If the <a href="../../../com/sleepycat/db/Database.html#getStats(com.sleepycat.db.Transaction,%20com.sleepycat.db.StatsConfig)"><code>Database.getStats</code></a> call was not
    configured by the <a href="../../../com/sleepycat/db/StatsConfig.html#setFast(boolean)"><code>StatsConfig.setFast</code></a> method, the count
    will be exact.  Otherwise, the count will be the last saved value
    unless it has never been calculated, in which case it will be 0.
    <p>
    For the Recno Access Method, the number of records in the database.
    If the database was configured with mutable record numbers, the
    count will be exact.  Otherwise, if the <a href="../../../com/sleepycat/db/Database.html#getStats(com.sleepycat.db.Transaction,%20com.sleepycat.db.StatsConfig)"><code>Database.getStats</code></a>
    call was configured by the <a href="../../../com/sleepycat/db/StatsConfig.html#setFast(boolean)"><code>StatsConfig.setFast</code></a> method, the
    count will be exact but will include deleted records; if the
    <a href="../../../com/sleepycat/db/Database.html#getStats(com.sleepycat.db.Transaction,%20com.sleepycat.db.StatsConfig)"><code>Database.getStats</code></a> call was not configured by the
    <a href="../../../com/sleepycat/db/StatsConfig.html#setFast(boolean)"><code>StatsConfig.setFast</code></a> method, the count will be exact and
    will not include deleted records.</div>
</li>
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<a name="getPageCount()">
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<h4>getPageCount</h4>
<pre>public&nbsp;int&nbsp;getPageCount()</pre>
<div class="block">The number of pages in the database.
    <p>
    Returned if <a href="../../../com/sleepycat/db/StatsConfig.html#setFast(boolean)"><code>StatsConfig.setFast(boolean)</code></a> was configured.</div>
</li>
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<h4>getPageSize</h4>
<pre>public&nbsp;int&nbsp;getPageSize()</pre>
<div class="block">The underlying database page size, in bytes.</div>
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<h4>getMinKey</h4>
<pre>public&nbsp;int&nbsp;getMinKey()</pre>
<div class="block">The minimum keys per page.</div>
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<h4>getNumBlobs</h4>
<pre>public&nbsp;int&nbsp;getNumBlobs()</pre>
<div class="block">The number of blob records.</div>
</li>
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<h4>getReLen</h4>
<pre>public&nbsp;int&nbsp;getReLen()</pre>
<div class="block">The length of fixed-length records.</div>
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<h4>getRePad</h4>
<pre>public&nbsp;int&nbsp;getRePad()</pre>
<div class="block">The padding byte value for fixed-length records.</div>
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<h4>getLevels</h4>
<pre>public&nbsp;int&nbsp;getLevels()</pre>
<div class="block">The number of levels in the database.
<p>
The information is only included if the <a href="../../../com/sleepycat/db/Database.html#getStats(com.sleepycat.db.Transaction,%20com.sleepycat.db.StatsConfig)"><code>Database.getStats</code></a> call
was not configured by the <a href="../../../com/sleepycat/db/StatsConfig.html#setFast(boolean)"><code>StatsConfig.setFast</code></a> method.</div>
</li>
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<h4>getIntPages</h4>
<pre>public&nbsp;int&nbsp;getIntPages()</pre>
<div class="block">The number of database internal pages.
<p>
The information is only included if the <a href="../../../com/sleepycat/db/Database.html#getStats(com.sleepycat.db.Transaction,%20com.sleepycat.db.StatsConfig)"><code>Database.getStats</code></a> call
was not configured by the <a href="../../../com/sleepycat/db/StatsConfig.html#setFast(boolean)"><code>StatsConfig.setFast</code></a> method.</div>
</li>
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<h4>getLeafPages</h4>
<pre>public&nbsp;int&nbsp;getLeafPages()</pre>
<div class="block">The number of database leaf pages.
<p>
The information is only included if the <a href="../../../com/sleepycat/db/Database.html#getStats(com.sleepycat.db.Transaction,%20com.sleepycat.db.StatsConfig)"><code>Database.getStats</code></a> call
was not configured by the <a href="../../../com/sleepycat/db/StatsConfig.html#setFast(boolean)"><code>StatsConfig.setFast</code></a> method.</div>
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<h4>getDupPages</h4>
<pre>public&nbsp;int&nbsp;getDupPages()</pre>
<div class="block">The number of database duplicate pages.
<p>
The information is only included if the <a href="../../../com/sleepycat/db/Database.html#getStats(com.sleepycat.db.Transaction,%20com.sleepycat.db.StatsConfig)"><code>Database.getStats</code></a> call
was not configured by the <a href="../../../com/sleepycat/db/StatsConfig.html#setFast(boolean)"><code>StatsConfig.setFast</code></a> method.</div>
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<a name="getOverPages()">
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<h4>getOverPages</h4>
<pre>public&nbsp;int&nbsp;getOverPages()</pre>
<div class="block">The number of database overflow pages.
<p>
The information is only included if the <a href="../../../com/sleepycat/db/Database.html#getStats(com.sleepycat.db.Transaction,%20com.sleepycat.db.StatsConfig)"><code>Database.getStats</code></a> call
was not configured by the <a href="../../../com/sleepycat/db/StatsConfig.html#setFast(boolean)"><code>StatsConfig.setFast</code></a> method.</div>
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<h4>getEmptyPages</h4>
<pre>public&nbsp;int&nbsp;getEmptyPages()</pre>
<div class="block">The number of empty database pages.
<p>
The information is only included if the <a href="../../../com/sleepycat/db/Database.html#getStats(com.sleepycat.db.Transaction,%20com.sleepycat.db.StatsConfig)"><code>Database.getStats</code></a> call
was not configured by the <a href="../../../com/sleepycat/db/StatsConfig.html#setFast(boolean)"><code>StatsConfig.setFast</code></a> method.</div>
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<h4>getFree</h4>
<pre>public&nbsp;int&nbsp;getFree()</pre>
<div class="block">The number of pages on the free list.
<p>
The information is only included if the <a href="../../../com/sleepycat/db/Database.html#getStats(com.sleepycat.db.Transaction,%20com.sleepycat.db.StatsConfig)"><code>Database.getStats</code></a> call
was not configured by the <a href="../../../com/sleepycat/db/StatsConfig.html#setFast(boolean)"><code>StatsConfig.setFast</code></a> method.</div>
</li>
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<h4>getIntPagesFree</h4>
<pre>public&nbsp;long&nbsp;getIntPagesFree()</pre>
<div class="block">The number of bytes free in database internal pages.
<p>
The information is only included if the <a href="../../../com/sleepycat/db/Database.html#getStats(com.sleepycat.db.Transaction,%20com.sleepycat.db.StatsConfig)"><code>Database.getStats</code></a> call
was not configured by the <a href="../../../com/sleepycat/db/StatsConfig.html#setFast(boolean)"><code>StatsConfig.setFast</code></a> method.</div>
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<h4>getLeafPagesFree</h4>
<pre>public&nbsp;long&nbsp;getLeafPagesFree()</pre>
<div class="block">The number of bytes free in database leaf pages.
<p>
The information is only included if the <a href="../../../com/sleepycat/db/Database.html#getStats(com.sleepycat.db.Transaction,%20com.sleepycat.db.StatsConfig)"><code>Database.getStats</code></a> call
was not configured by the <a href="../../../com/sleepycat/db/StatsConfig.html#setFast(boolean)"><code>StatsConfig.setFast</code></a> method.</div>
</li>
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<h4>getDupPagesFree</h4>
<pre>public&nbsp;long&nbsp;getDupPagesFree()</pre>
<div class="block">The number of bytes free in database duplicate pages.
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The information is only included if the <a href="../../../com/sleepycat/db/Database.html#getStats(com.sleepycat.db.Transaction,%20com.sleepycat.db.StatsConfig)"><code>Database.getStats</code></a> call
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<pre>public&nbsp;long&nbsp;getOverPagesFree()</pre>
<div class="block">The number of bytes free in database overflow pages.
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was not configured by the <a href="../../../com/sleepycat/db/StatsConfig.html#setFast(boolean)"><code>StatsConfig.setFast</code></a> method.</div>
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<pre>public&nbsp;java.lang.String&nbsp;toString()</pre>
<div class="block">For convenience, the BtreeStats class has a toString method
    that lists all the data fields.</div>
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