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<div class="subTitle">org.apache.ignite</div>
<h2 title="Class DataRegionMetricsAdapter" class="title">Class DataRegionMetricsAdapter</h2>
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<li>org.apache.ignite.DataRegionMetricsAdapter</li>
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<dt>All Implemented Interfaces:</dt>
<dd><a href="../../../org/apache/ignite/MemoryMetrics.html" title="interface in org.apache.ignite">MemoryMetrics</a></dd>
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<pre>public class <span class="typeNameLabel">DataRegionMetricsAdapter</span>
extends <a href="http://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a>
implements <a href="../../../org/apache/ignite/MemoryMetrics.html" title="interface in org.apache.ignite">MemoryMetrics</a></pre>
<div class="block">Converter class from <a href="../../../org/apache/ignite/DataRegionMetrics.html" title="interface in org.apache.ignite"><code>DataRegionMetrics</code></a> to legacy <a href="../../../org/apache/ignite/MemoryMetrics.html" title="interface in org.apache.ignite"><code>MemoryMetrics</code></a>.</div>
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<h3>Method Summary</h3>
<table class="memberSummary" border="0" cellpadding="3" cellspacing="0" summary="Method Summary table, listing methods, and an explanation">
<caption><span id="t0" class="activeTableTab"><span>All Methods</span><span class="tabEnd">&nbsp;</span></span><span id="t1" class="tableTab"><span><a href="javascript:show(1);">Static Methods</a></span><span class="tabEnd">&nbsp;</span></span><span id="t2" class="tableTab"><span><a href="javascript:show(2);">Instance Methods</a></span><span class="tabEnd">&nbsp;</span></span><span id="t4" class="tableTab"><span><a href="javascript:show(8);">Concrete Methods</a></span><span class="tabEnd">&nbsp;</span></span></caption>
<tr>
<th class="colFirst" scope="col">Modifier and Type</th>
<th class="colLast" scope="col">Method and Description</th>
</tr>
<tr id="i0" class="altColor">
<td class="colFirst"><code>static <a href="http://docs.oracle.com/javase/8/docs/api/java/util/Collection.html?is-external=true" title="class or interface in java.util">Collection</a>&lt;<a href="../../../org/apache/ignite/MemoryMetrics.html" title="interface in org.apache.ignite">MemoryMetrics</a>&gt;</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../org/apache/ignite/DataRegionMetricsAdapter.html#collectionOf-java.util.Collection-">collectionOf</a></span>(<a href="http://docs.oracle.com/javase/8/docs/api/java/util/Collection.html?is-external=true" title="class or interface in java.util">Collection</a>&lt;<a href="../../../org/apache/ignite/DataRegionMetrics.html" title="interface in org.apache.ignite">DataRegionMetrics</a>&gt;&nbsp;dataRegionMetrics)</code>
<div class="block">Converts collection of <a href="../../../org/apache/ignite/DataRegionMetrics.html" title="interface in org.apache.ignite"><code>DataRegionMetrics</code></a> into collection of legacy <a href="../../../org/apache/ignite/MemoryMetrics.html" title="interface in org.apache.ignite"><code>MemoryMetrics</code></a>.</div>
</td>
</tr>
<tr id="i1" class="rowColor">
<td class="colFirst"><code>float</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../org/apache/ignite/DataRegionMetricsAdapter.html#getAllocationRate--">getAllocationRate</a></span>()</code>
<div class="block">Gets pages allocation rate of a memory region.</div>
</td>
</tr>
<tr id="i2" class="altColor">
<td class="colFirst"><code>long</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../org/apache/ignite/DataRegionMetricsAdapter.html#getDirtyPages--">getDirtyPages</a></span>()</code>
<div class="block">Gets the number of dirty pages (pages which contents is different from the current persistent storage state).</div>
</td>
</tr>
<tr id="i3" class="rowColor">
<td class="colFirst"><code>float</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../org/apache/ignite/DataRegionMetricsAdapter.html#getEvictionRate--">getEvictionRate</a></span>()</code>
<div class="block">Gets eviction rate of a given memory region.</div>
</td>
</tr>
<tr id="i4" class="altColor">
<td class="colFirst"><code>float</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../org/apache/ignite/DataRegionMetricsAdapter.html#getLargeEntriesPagesPercentage--">getLargeEntriesPagesPercentage</a></span>()</code>
<div class="block">Gets percentage of pages that are fully occupied by large entries that go beyond page size.</div>
</td>
</tr>
<tr id="i5" class="rowColor">
<td class="colFirst"><code><a href="http://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../org/apache/ignite/DataRegionMetricsAdapter.html#getName--">getName</a></span>()</code>
<div class="block">A name of a memory region the metrics are collected for.</div>
</td>
</tr>
<tr id="i6" class="altColor">
<td class="colFirst"><code>float</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../org/apache/ignite/DataRegionMetricsAdapter.html#getPagesFillFactor--">getPagesFillFactor</a></span>()</code>
<div class="block">Gets the percentage of space that is still free and can be filled in.</div>
</td>
</tr>
<tr id="i7" class="rowColor">
<td class="colFirst"><code>float</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../org/apache/ignite/DataRegionMetricsAdapter.html#getPagesReplaceRate--">getPagesReplaceRate</a></span>()</code>
<div class="block">Gets rate (pages per second) at which pages get replaced with other pages from persistent storage.</div>
</td>
</tr>
<tr id="i8" class="altColor">
<td class="colFirst"><code>long</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../org/apache/ignite/DataRegionMetricsAdapter.html#getPhysicalMemoryPages--">getPhysicalMemoryPages</a></span>()</code>
<div class="block">Gets total number of pages currently loaded to the RAM.</div>
</td>
</tr>
<tr id="i9" class="rowColor">
<td class="colFirst"><code>long</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../org/apache/ignite/DataRegionMetricsAdapter.html#getTotalAllocatedPages--">getTotalAllocatedPages</a></span>()</code>
<div class="block">Gets a total number of allocated pages related to the memory policy.</div>
</td>
</tr>
<tr id="i10" class="altColor">
<td class="colFirst"><code>static <a href="../../../org/apache/ignite/DataRegionMetricsAdapter.html" title="class in org.apache.ignite">DataRegionMetricsAdapter</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../org/apache/ignite/DataRegionMetricsAdapter.html#valueOf-org.apache.ignite.DataRegionMetrics-">valueOf</a></span>(<a href="../../../org/apache/ignite/DataRegionMetrics.html" title="interface in org.apache.ignite">DataRegionMetrics</a>&nbsp;delegate)</code>&nbsp;</td>
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<h3>Methods inherited from class&nbsp;java.lang.<a href="http://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a></h3>
<code><a href="http://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#clone--" title="class or interface in java.lang">clone</a>, <a href="http://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#equals-java.lang.Object-" title="class or interface in java.lang">equals</a>, <a href="http://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#finalize--" title="class or interface in java.lang">finalize</a>, <a href="http://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#getClass--" title="class or interface in java.lang">getClass</a>, <a href="http://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#hashCode--" title="class or interface in java.lang">hashCode</a>, <a href="http://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#notify--" title="class or interface in java.lang">notify</a>, <a href="http://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#notifyAll--" title="class or interface in java.lang">notifyAll</a>, <a href="http://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#toString--" title="class or interface in java.lang">toString</a>, <a href="http://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#wait--" title="class or interface in java.lang">wait</a>, <a href="http://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#wait-long-" title="class or interface in java.lang">wait</a>, <a href="http://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#wait-long-int-" title="class or interface in java.lang">wait</a></code></li>
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<h3>Method Detail</h3>
<a name="collectionOf-java.util.Collection-">
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<h4>collectionOf</h4>
<pre>public static&nbsp;<a href="http://docs.oracle.com/javase/8/docs/api/java/util/Collection.html?is-external=true" title="class or interface in java.util">Collection</a>&lt;<a href="../../../org/apache/ignite/MemoryMetrics.html" title="interface in org.apache.ignite">MemoryMetrics</a>&gt;&nbsp;collectionOf(<a href="http://docs.oracle.com/javase/8/docs/api/java/util/Collection.html?is-external=true" title="class or interface in java.util">Collection</a>&lt;<a href="../../../org/apache/ignite/DataRegionMetrics.html" title="interface in org.apache.ignite">DataRegionMetrics</a>&gt;&nbsp;dataRegionMetrics)</pre>
<div class="block">Converts collection of <a href="../../../org/apache/ignite/DataRegionMetrics.html" title="interface in org.apache.ignite"><code>DataRegionMetrics</code></a> into collection of legacy <a href="../../../org/apache/ignite/MemoryMetrics.html" title="interface in org.apache.ignite"><code>MemoryMetrics</code></a>.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>dataRegionMetrics</code> - Data region metrics collection.</dd>
</dl>
</li>
</ul>
<a name="valueOf-org.apache.ignite.DataRegionMetrics-">
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<h4>valueOf</h4>
<pre>public static&nbsp;<a href="../../../org/apache/ignite/DataRegionMetricsAdapter.html" title="class in org.apache.ignite">DataRegionMetricsAdapter</a>&nbsp;valueOf(<a href="../../../org/apache/ignite/DataRegionMetrics.html" title="interface in org.apache.ignite">DataRegionMetrics</a>&nbsp;delegate)</pre>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>delegate</code> - DataRegionMetrics.</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>Wrapped <a href="../../../org/apache/ignite/DataRegionMetrics.html" title="interface in org.apache.ignite"><code>DataRegionMetrics</code></a> that implements <a href="../../../org/apache/ignite/MemoryMetrics.html" title="interface in org.apache.ignite"><code>MemoryMetrics</code></a>.
Null value is not wrapped and returned as is.</dd>
</dl>
</li>
</ul>
<a name="getName--">
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<h4>getName</h4>
<pre>public&nbsp;<a href="http://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;getName()</pre>
<div class="block">A name of a memory region the metrics are collected for.</div>
<dl>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code><a href="../../../org/apache/ignite/MemoryMetrics.html#getName--">getName</a></code>&nbsp;in interface&nbsp;<code><a href="../../../org/apache/ignite/MemoryMetrics.html" title="interface in org.apache.ignite">MemoryMetrics</a></code></dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>Name of the memory region.</dd>
</dl>
</li>
</ul>
<a name="getTotalAllocatedPages--">
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<h4>getTotalAllocatedPages</h4>
<pre>public&nbsp;long&nbsp;getTotalAllocatedPages()</pre>
<div class="block">Gets a total number of allocated pages related to the memory policy. When persistence is disabled, this
metric shows the total number of pages in memory. When persistence is enabled, this metric shows the
total number of pages in memory and on disk.</div>
<dl>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code><a href="../../../org/apache/ignite/MemoryMetrics.html#getTotalAllocatedPages--">getTotalAllocatedPages</a></code>&nbsp;in interface&nbsp;<code><a href="../../../org/apache/ignite/MemoryMetrics.html" title="interface in org.apache.ignite">MemoryMetrics</a></code></dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>Total number of allocated pages.</dd>
</dl>
</li>
</ul>
<a name="getAllocationRate--">
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<h4>getAllocationRate</h4>
<pre>public&nbsp;float&nbsp;getAllocationRate()</pre>
<div class="block">Gets pages allocation rate of a memory region.</div>
<dl>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code><a href="../../../org/apache/ignite/MemoryMetrics.html#getAllocationRate--">getAllocationRate</a></code>&nbsp;in interface&nbsp;<code><a href="../../../org/apache/ignite/MemoryMetrics.html" title="interface in org.apache.ignite">MemoryMetrics</a></code></dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>Number of allocated pages per second.</dd>
</dl>
</li>
</ul>
<a name="getEvictionRate--">
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<h4>getEvictionRate</h4>
<pre>public&nbsp;float&nbsp;getEvictionRate()</pre>
<div class="block">Gets eviction rate of a given memory region.</div>
<dl>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code><a href="../../../org/apache/ignite/MemoryMetrics.html#getEvictionRate--">getEvictionRate</a></code>&nbsp;in interface&nbsp;<code><a href="../../../org/apache/ignite/MemoryMetrics.html" title="interface in org.apache.ignite">MemoryMetrics</a></code></dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>Number of evicted pages per second.</dd>
</dl>
</li>
</ul>
<a name="getLargeEntriesPagesPercentage--">
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<h4>getLargeEntriesPagesPercentage</h4>
<pre>public&nbsp;float&nbsp;getLargeEntriesPagesPercentage()</pre>
<div class="block">Gets percentage of pages that are fully occupied by large entries that go beyond page size. The large entities
are split into fragments in a way so that each fragment can fit into a single page.</div>
<dl>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code><a href="../../../org/apache/ignite/MemoryMetrics.html#getLargeEntriesPagesPercentage--">getLargeEntriesPagesPercentage</a></code>&nbsp;in interface&nbsp;<code><a href="../../../org/apache/ignite/MemoryMetrics.html" title="interface in org.apache.ignite">MemoryMetrics</a></code></dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>Percentage of pages fully occupied by large entities.</dd>
</dl>
</li>
</ul>
<a name="getPagesFillFactor--">
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<h4>getPagesFillFactor</h4>
<pre>public&nbsp;float&nbsp;getPagesFillFactor()</pre>
<div class="block">Gets the percentage of space that is still free and can be filled in.</div>
<dl>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code><a href="../../../org/apache/ignite/MemoryMetrics.html#getPagesFillFactor--">getPagesFillFactor</a></code>&nbsp;in interface&nbsp;<code><a href="../../../org/apache/ignite/MemoryMetrics.html" title="interface in org.apache.ignite">MemoryMetrics</a></code></dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>The percentage of space that is still free and can be filled in.</dd>
</dl>
</li>
</ul>
<a name="getDirtyPages--">
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<ul class="blockList">
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<h4>getDirtyPages</h4>
<pre>public&nbsp;long&nbsp;getDirtyPages()</pre>
<div class="block">Gets the number of dirty pages (pages which contents is different from the current persistent storage state).
This metric is enabled only for Ignite nodes with enabled persistence.</div>
<dl>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code><a href="../../../org/apache/ignite/MemoryMetrics.html#getDirtyPages--">getDirtyPages</a></code>&nbsp;in interface&nbsp;<code><a href="../../../org/apache/ignite/MemoryMetrics.html" title="interface in org.apache.ignite">MemoryMetrics</a></code></dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>Current number of dirty pages.</dd>
</dl>
</li>
</ul>
<a name="getPagesReplaceRate--">
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<h4>getPagesReplaceRate</h4>
<pre>public&nbsp;float&nbsp;getPagesReplaceRate()</pre>
<div class="block">Gets rate (pages per second) at which pages get replaced with other pages from persistent storage.
The rate effectively represents the rate at which pages get 'evicted' in favor of newly needed pages.
This metric is enabled only for Ignite nodes with enabled persistence.</div>
<dl>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code><a href="../../../org/apache/ignite/MemoryMetrics.html#getPagesReplaceRate--">getPagesReplaceRate</a></code>&nbsp;in interface&nbsp;<code><a href="../../../org/apache/ignite/MemoryMetrics.html" title="interface in org.apache.ignite">MemoryMetrics</a></code></dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>Pages per second replace rate.</dd>
</dl>
</li>
</ul>
<a name="getPhysicalMemoryPages--">
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<h4>getPhysicalMemoryPages</h4>
<pre>public&nbsp;long&nbsp;getPhysicalMemoryPages()</pre>
<div class="block">Gets total number of pages currently loaded to the RAM. When persistence is disabled, this metric is equal
to <a href="../../../org/apache/ignite/MemoryMetrics.html#getTotalAllocatedPages--"><code>MemoryMetrics.getTotalAllocatedPages()</code></a>.</div>
<dl>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code><a href="../../../org/apache/ignite/MemoryMetrics.html#getPhysicalMemoryPages--">getPhysicalMemoryPages</a></code>&nbsp;in interface&nbsp;<code><a href="../../../org/apache/ignite/MemoryMetrics.html" title="interface in org.apache.ignite">MemoryMetrics</a></code></dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>Total number of pages loaded to RAM.</dd>
</dl>
</li>
</ul>
</li>
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<p class="legalCopy"><small><table width="100%" border="0" cellspacing=0 cellpadding=0 style="padding: 5px"> <tr> <td> <table style="padding-left: 0; margin: 0"> <tbody style="padding: 0; margin: 0"> <tr style="padding: 0; margin: 0"> <td> <a target=_blank href="https://ignite.apache.org"><nobr>2018 Copyright &#169; Apache Software Foundation</nobr></a> </td> </tr> </tbody> </table> </td> <td width="100%" align="right" valign="center"> <a href="https://twitter.com/ApacheIgnite" class="twitter-follow-button" data-show-count="false" data-size="large">Follow @ApacheIgnite</a> </td> </tr> <tr> <td colspan="2" valign="top" align="left"> <table style="padding-left: 0; margin: 0"> <tbody style="padding: 0; margin: 0"> <tr style="padding: 0; margin: 0"> <td> <b>Ignite Fabric</b> </td> <td>:&nbsp;&nbsp; ver. <strong>2.6.0</strong> </td> </tr> <tr style="padding: 0; margin: 0"> <td> <b>Release Date</b> </td> <td>:&nbsp;&nbsp; July 10 2018 </td> </tr> </tbody> </table> </td> </tr> </table></small></p>
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