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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
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<title>BtreeStats (Oracle - Berkeley DB Java API)</title>
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<div class="aboutLanguage"><em><b>Berkeley DB</b><br><font size="-1"> version 6.1.23</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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<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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<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"> </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>
</td>
</tr>
</table>
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<h3>Methods inherited from class java.lang.Object</h3>
<code>clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait</code></li>
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<h3>Method Detail</h3>
<a name="getMagic()">
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</a>
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<h4>getMagic</h4>
<pre>public int getMagic()</pre>
<div class="block">The magic number that identifies the file as a Btree database.</div>
</li>
</ul>
<a name="getVersion()">
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</a>
<ul class="blockList">
<li class="blockList">
<h4>getVersion</h4>
<pre>public int getVersion()</pre>
<div class="block">The version of the Btree database.</div>
</li>
</ul>
<a name="getMetaFlags()">
<!-- -->
</a>
<ul class="blockList">
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<h4>getMetaFlags</h4>
<pre>public int getMetaFlags()</pre>
<div class="block">Reports internal flags. For internal use only.</div>
</li>
</ul>
<a name="getNumKeys()">
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<h4>getNumKeys</h4>
<pre>public int 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>
</li>
</ul>
<a name="getNumData()">
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<ul class="blockList">
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<h4>getNumData</h4>
<pre>public int 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>
</ul>
<a name="getPageCount()">
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<ul class="blockList">
<li class="blockList">
<h4>getPageCount</h4>
<pre>public int 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>
</ul>
<a name="getPageSize()">
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<ul class="blockList">
<li class="blockList">
<h4>getPageSize</h4>
<pre>public int getPageSize()</pre>
<div class="block">The underlying database page size, in bytes.</div>
</li>
</ul>
<a name="getMinKey()">
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</a>
<ul class="blockList">
<li class="blockList">
<h4>getMinKey</h4>
<pre>public int getMinKey()</pre>
<div class="block">The minimum keys per page.</div>
</li>
</ul>
<a name="getNumBlobs()">
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</a>
<ul class="blockList">
<li class="blockList">
<h4>getNumBlobs</h4>
<pre>public int getNumBlobs()</pre>
<div class="block">The number of blob records.</div>
</li>
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<a name="getReLen()">
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<h4>getReLen</h4>
<pre>public int getReLen()</pre>
<div class="block">The length of fixed-length records.</div>
</li>
</ul>
<a name="getRePad()">
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<h4>getRePad</h4>
<pre>public int getRePad()</pre>
<div class="block">The padding byte value for fixed-length records.</div>
</li>
</ul>
<a name="getLevels()">
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<h4>getLevels</h4>
<pre>public int 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>
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<a name="getIntPages()">
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<h4>getIntPages</h4>
<pre>public int 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>
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<h4>getLeafPages</h4>
<pre>public int 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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<a name="getDupPages()">
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<h4>getDupPages</h4>
<pre>public int 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 int 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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<a name="getEmptyPages()">
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<h4>getEmptyPages</h4>
<pre>public int 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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<a name="getFree()">
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<h4>getFree</h4>
<pre>public int 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>
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<a name="getIntPagesFree()">
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<h4>getIntPagesFree</h4>
<pre>public long 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 long 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>
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<h4>getDupPagesFree</h4>
<pre>public long getDupPagesFree()</pre>
<div class="block">The number of bytes free in 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="getOverPagesFree()">
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<h4>getOverPagesFree</h4>
<pre>public long getOverPagesFree()</pre>
<div class="block">The number of bytes free in 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>toString</h4>
<pre>public java.lang.String toString()</pre>
<div class="block">For convenience, the BtreeStats class has a toString method
that lists all the data fields.</div>
<dl>
<dt><strong>Overrides:</strong></dt>
<dd><code>toString</code> in class <code>java.lang.Object</code></dd>
</dl>
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