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<div class="subTitle">org.apache.openjpa.datacache</div>
<h2 title="Interface CacheStatistics" class="title">Interface CacheStatistics</h2>
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<dl>
<dt>All Superinterfaces:</dt>
<dd><a href="http://download.oracle.com/javase/6/docs/api/java/io/Serializable.html?is-external=true" title="class or interface in java.io">Serializable</a></dd>
</dl>
<dl>
<dt>All Known Subinterfaces:</dt>
<dd><a href="../../../../org/apache/openjpa/datacache/CacheStatisticsSPI.html" title="interface in org.apache.openjpa.datacache">CacheStatisticsSPI</a></dd>
</dl>
<dl>
<dt>All Known Implementing Classes:</dt>
<dd><a href="../../../../org/apache/openjpa/datacache/CacheStatisticsImpl.html" title="class in org.apache.openjpa.datacache">CacheStatisticsImpl</a></dd>
</dl>
<hr>
<br>
<pre>public interface <span class="strong">CacheStatistics</span>
extends <a href="http://download.oracle.com/javase/6/docs/api/java/io/Serializable.html?is-external=true" title="class or interface in java.io">Serializable</a></pre>
<div class="block">Counts number of read/write requests and hit ratio for a cache in total and
per-class basis.
All methods with Class as input argument treats null as
<code>java.lang.Object</code>. All per-class statistics depends on
determining the runtime type of the instance being cached. If it is not
possible to determine the runtime type from the given context, the statistics
is registered under generic <code>java.lang.Object</code>.</div>
<dl><dt><span class="strong">Since:</span></dt>
<dd>1.3.0</dd></dl>
</li>
</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><a href="http://download.oracle.com/javase/6/docs/api/java/util/Set.html?is-external=true" title="class or interface in java.util">Set</a>&lt;<a href="http://download.oracle.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&gt;</code></td>
<td class="colLast"><code><strong><a href="../../../../org/apache/openjpa/datacache/CacheStatistics.html#classNames()">classNames</a></strong>()</code>
<div class="block">Returns the types that are known to this cache being tracked.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>long</code></td>
<td class="colLast"><code><strong><a href="../../../../org/apache/openjpa/datacache/CacheStatistics.html#getHitCount()">getHitCount</a></strong>()</code>
<div class="block">Gets number of total read requests that has been found in cache since
last reset.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>long</code></td>
<td class="colLast"><code><strong><a href="../../../../org/apache/openjpa/datacache/CacheStatistics.html#getHitCount(java.lang.Class)">getHitCount</a></strong>(<a href="http://download.oracle.com/javase/6/docs/api/java/lang/Class.html?is-external=true" title="class or interface in java.lang">Class</a>&lt;?&gt;&nbsp;cls)</code>
<div class="block"><strong>Deprecated.</strong>&nbsp;
<div class="block"><i>- should use getHitCount(String c)</i></div>
</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>long</code></td>
<td class="colLast"><code><strong><a href="../../../../org/apache/openjpa/datacache/CacheStatistics.html#getHitCount(java.lang.String)">getHitCount</a></strong>(<a href="http://download.oracle.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;c)</code>
<div class="block">Gets number of total read requests that has been found in cache for the given class since last reset.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>long</code></td>
<td class="colLast"><code><strong><a href="../../../../org/apache/openjpa/datacache/CacheStatistics.html#getReadCount()">getReadCount</a></strong>()</code>
<div class="block">Gets number of total read requests since last reset.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>long</code></td>
<td class="colLast"><code><strong><a href="../../../../org/apache/openjpa/datacache/CacheStatistics.html#getReadCount(java.lang.Class)">getReadCount</a></strong>(<a href="http://download.oracle.com/javase/6/docs/api/java/lang/Class.html?is-external=true" title="class or interface in java.lang">Class</a>&lt;?&gt;&nbsp;cls)</code>
<div class="block"><strong>Deprecated.</strong>&nbsp;
<div class="block"><i>- should use getReadCount(String c)</i></div>
</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>long</code></td>
<td class="colLast"><code><strong><a href="../../../../org/apache/openjpa/datacache/CacheStatistics.html#getReadCount(java.lang.String)">getReadCount</a></strong>(<a href="http://download.oracle.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;c)</code>
<div class="block">Gets number of total read requests for the given class since last reset.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>long</code></td>
<td class="colLast"><code><strong><a href="../../../../org/apache/openjpa/datacache/CacheStatistics.html#getTotalHitCount()">getTotalHitCount</a></strong>()</code>
<div class="block">Gets number of total read requests that has been found in cache since
start.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>long</code></td>
<td class="colLast"><code><strong><a href="../../../../org/apache/openjpa/datacache/CacheStatistics.html#getTotalHitCount(java.lang.Class)">getTotalHitCount</a></strong>(<a href="http://download.oracle.com/javase/6/docs/api/java/lang/Class.html?is-external=true" title="class or interface in java.lang">Class</a>&lt;?&gt;&nbsp;cls)</code>
<div class="block"><strong>Deprecated.</strong>&nbsp;
<div class="block"><i>- should use getTotalHitCount(String c)</i></div>
</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>long</code></td>
<td class="colLast"><code><strong><a href="../../../../org/apache/openjpa/datacache/CacheStatistics.html#getTotalHitCount(java.lang.String)">getTotalHitCount</a></strong>(<a href="http://download.oracle.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;c)</code>
<div class="block">Gets number of total read requests that has been found in cache for the given class since start.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>long</code></td>
<td class="colLast"><code><strong><a href="../../../../org/apache/openjpa/datacache/CacheStatistics.html#getTotalReadCount()">getTotalReadCount</a></strong>()</code>
<div class="block">Gets number of total read requests since start.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>long</code></td>
<td class="colLast"><code><strong><a href="../../../../org/apache/openjpa/datacache/CacheStatistics.html#getTotalReadCount(java.lang.Class)">getTotalReadCount</a></strong>(<a href="http://download.oracle.com/javase/6/docs/api/java/lang/Class.html?is-external=true" title="class or interface in java.lang">Class</a>&lt;?&gt;&nbsp;cls)</code>
<div class="block"><strong>Deprecated.</strong>&nbsp;
<div class="block"><i>- should use getTotalReadCount(String c)</i></div>
</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>long</code></td>
<td class="colLast"><code><strong><a href="../../../../org/apache/openjpa/datacache/CacheStatistics.html#getTotalReadCount(java.lang.String)">getTotalReadCount</a></strong>(<a href="http://download.oracle.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;c)</code>
<div class="block">Gets number of total read requests for the given class since start.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>long</code></td>
<td class="colLast"><code><strong><a href="../../../../org/apache/openjpa/datacache/CacheStatistics.html#getTotalWriteCount()">getTotalWriteCount</a></strong>()</code>
<div class="block">Gets number of total write requests since start.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>long</code></td>
<td class="colLast"><code><strong><a href="../../../../org/apache/openjpa/datacache/CacheStatistics.html#getTotalWriteCount(java.lang.Class)">getTotalWriteCount</a></strong>(<a href="http://download.oracle.com/javase/6/docs/api/java/lang/Class.html?is-external=true" title="class or interface in java.lang">Class</a>&lt;?&gt;&nbsp;cls)</code>
<div class="block"><strong>Deprecated.</strong>&nbsp;
<div class="block"><i>- should use getTotalWriteCount(String c)</i></div>
</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>long</code></td>
<td class="colLast"><code><strong><a href="../../../../org/apache/openjpa/datacache/CacheStatistics.html#getTotalWriteCount(java.lang.String)">getTotalWriteCount</a></strong>(<a href="http://download.oracle.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;c)</code>
<div class="block">Gets number of total write requests for the given class since start.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>long</code></td>
<td class="colLast"><code><strong><a href="../../../../org/apache/openjpa/datacache/CacheStatistics.html#getWriteCount()">getWriteCount</a></strong>()</code>
<div class="block">Gets number of total write requests since last reset.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>long</code></td>
<td class="colLast"><code><strong><a href="../../../../org/apache/openjpa/datacache/CacheStatistics.html#getWriteCount(java.lang.Class)">getWriteCount</a></strong>(<a href="http://download.oracle.com/javase/6/docs/api/java/lang/Class.html?is-external=true" title="class or interface in java.lang">Class</a>&lt;?&gt;&nbsp;cls)</code>
<div class="block"><strong>Deprecated.</strong>&nbsp;
<div class="block"><i>- should use getWriteCount(String c)</i></div>
</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>long</code></td>
<td class="colLast"><code><strong><a href="../../../../org/apache/openjpa/datacache/CacheStatistics.html#getWriteCount(java.lang.String)">getWriteCount</a></strong>(<a href="http://download.oracle.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;c)</code>
<div class="block">Gets number of total write requests for the given class since last reset.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>boolean</code></td>
<td class="colLast"><code><strong><a href="../../../../org/apache/openjpa/datacache/CacheStatistics.html#isEnabled()">isEnabled</a></strong>()</code>
<div class="block">Returns whether or not statistics will be collected.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><strong><a href="../../../../org/apache/openjpa/datacache/CacheStatistics.html#reset()">reset</a></strong>()</code>
<div class="block">Clears all accumulated statistics.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code><a href="http://download.oracle.com/javase/6/docs/api/java/util/Date.html?is-external=true" title="class or interface in java.util">Date</a></code></td>
<td class="colLast"><code><strong><a href="../../../../org/apache/openjpa/datacache/CacheStatistics.html#since()">since</a></strong>()</code>
<div class="block">Gets the time of last reset.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code><a href="http://download.oracle.com/javase/6/docs/api/java/util/Date.html?is-external=true" title="class or interface in java.util">Date</a></code></td>
<td class="colLast"><code><strong><a href="../../../../org/apache/openjpa/datacache/CacheStatistics.html#start()">start</a></strong>()</code>
<div class="block">Gets the time of start.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code><a href="http://download.oracle.com/javase/6/docs/api/java/util/Map.html?is-external=true" title="class or interface in java.util">Map</a>&lt;<a href="http://download.oracle.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>,long[]&gt;</code></td>
<td class="colLast"><code><strong><a href="../../../../org/apache/openjpa/datacache/CacheStatistics.html#toMap()">toMap</a></strong>()</code>&nbsp;</td>
</tr>
</table>
</li>
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<h3>Method Detail</h3>
<a name="getReadCount()">
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<h4>getReadCount</h4>
<pre>long&nbsp;getReadCount()</pre>
<div class="block">Gets number of total read requests since last reset.</div>
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<a name="getHitCount()">
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<h4>getHitCount</h4>
<pre>long&nbsp;getHitCount()</pre>
<div class="block">Gets number of total read requests that has been found in cache since
last reset.</div>
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</ul>
<a name="getWriteCount()">
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<h4>getWriteCount</h4>
<pre>long&nbsp;getWriteCount()</pre>
<div class="block">Gets number of total write requests since last reset.</div>
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<h4>getTotalReadCount</h4>
<pre>long&nbsp;getTotalReadCount()</pre>
<div class="block">Gets number of total read requests since start.</div>
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<h4>getTotalHitCount</h4>
<pre>long&nbsp;getTotalHitCount()</pre>
<div class="block">Gets number of total read requests that has been found in cache since
start.</div>
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<a name="getTotalWriteCount()">
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<h4>getTotalWriteCount</h4>
<pre>long&nbsp;getTotalWriteCount()</pre>
<div class="block">Gets number of total write requests since start.</div>
</li>
</ul>
<a name="getReadCount(java.lang.Class)">
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<h4>getReadCount</h4>
<pre>long&nbsp;getReadCount(<a href="http://download.oracle.com/javase/6/docs/api/java/lang/Class.html?is-external=true" title="class or interface in java.lang">Class</a>&lt;?&gt;&nbsp;cls)</pre>
<div class="block"><span class="strong">Deprecated.</span>&nbsp;<i>- should use getReadCount(String c)</i></div>
<div class="block">Gets number of total read requests for the given class since last reset.</div>
</li>
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<a name="getReadCount(java.lang.String)">
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<h4>getReadCount</h4>
<pre>long&nbsp;getReadCount(<a href="http://download.oracle.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;c)</pre>
<div class="block">Gets number of total read requests for the given class since last reset.</div>
</li>
</ul>
<a name="getHitCount(java.lang.Class)">
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<h4>getHitCount</h4>
<pre>long&nbsp;getHitCount(<a href="http://download.oracle.com/javase/6/docs/api/java/lang/Class.html?is-external=true" title="class or interface in java.lang">Class</a>&lt;?&gt;&nbsp;cls)</pre>
<div class="block"><span class="strong">Deprecated.</span>&nbsp;<i>- should use getHitCount(String c)</i></div>
<div class="block">Gets number of total read requests that has been found in cache for the given class since last reset.</div>
</li>
</ul>
<a name="getHitCount(java.lang.String)">
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<h4>getHitCount</h4>
<pre>long&nbsp;getHitCount(<a href="http://download.oracle.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;c)</pre>
<div class="block">Gets number of total read requests that has been found in cache for the given class since last reset.</div>
</li>
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<a name="getWriteCount(java.lang.Class)">
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<h4>getWriteCount</h4>
<pre>long&nbsp;getWriteCount(<a href="http://download.oracle.com/javase/6/docs/api/java/lang/Class.html?is-external=true" title="class or interface in java.lang">Class</a>&lt;?&gt;&nbsp;cls)</pre>
<div class="block"><span class="strong">Deprecated.</span>&nbsp;<i>- should use getWriteCount(String c)</i></div>
<div class="block">Gets number of total write requests for the given class since last reset.</div>
</li>
</ul>
<a name="getWriteCount(java.lang.String)">
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<h4>getWriteCount</h4>
<pre>long&nbsp;getWriteCount(<a href="http://download.oracle.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;c)</pre>
<div class="block">Gets number of total write requests for the given class since last reset.</div>
</li>
</ul>
<a name="getTotalReadCount(java.lang.Class)">
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<h4>getTotalReadCount</h4>
<pre>long&nbsp;getTotalReadCount(<a href="http://download.oracle.com/javase/6/docs/api/java/lang/Class.html?is-external=true" title="class or interface in java.lang">Class</a>&lt;?&gt;&nbsp;cls)</pre>
<div class="block"><span class="strong">Deprecated.</span>&nbsp;<i>- should use getTotalReadCount(String c)</i></div>
<div class="block">Gets number of total read requests for the given class since start.</div>
</li>
</ul>
<a name="getTotalReadCount(java.lang.String)">
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<h4>getTotalReadCount</h4>
<pre>long&nbsp;getTotalReadCount(<a href="http://download.oracle.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;c)</pre>
<div class="block">Gets number of total read requests for the given class since start.</div>
</li>
</ul>
<a name="getTotalHitCount(java.lang.String)">
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<h4>getTotalHitCount</h4>
<pre>long&nbsp;getTotalHitCount(<a href="http://download.oracle.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;c)</pre>
<div class="block">Gets number of total read requests that has been found in cache for the given class since start.</div>
</li>
</ul>
<a name="getTotalHitCount(java.lang.Class)">
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<h4>getTotalHitCount</h4>
<pre>long&nbsp;getTotalHitCount(<a href="http://download.oracle.com/javase/6/docs/api/java/lang/Class.html?is-external=true" title="class or interface in java.lang">Class</a>&lt;?&gt;&nbsp;cls)</pre>
<div class="block"><span class="strong">Deprecated.</span>&nbsp;<i>- should use getTotalHitCount(String c)</i></div>
<div class="block">Gets number of total read requests that has been found in cache for the given class since start.</div>
</li>
</ul>
<a name="getTotalWriteCount(java.lang.String)">
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<h4>getTotalWriteCount</h4>
<pre>long&nbsp;getTotalWriteCount(<a href="http://download.oracle.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;c)</pre>
<div class="block">Gets number of total write requests for the given class since start.</div>
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<h4>getTotalWriteCount</h4>
<pre>long&nbsp;getTotalWriteCount(<a href="http://download.oracle.com/javase/6/docs/api/java/lang/Class.html?is-external=true" title="class or interface in java.lang">Class</a>&lt;?&gt;&nbsp;cls)</pre>
<div class="block"><span class="strong">Deprecated.</span>&nbsp;<i>- should use getTotalWriteCount(String c)</i></div>
<div class="block">Gets number of total write requests for the given class since start.</div>
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<h4>since</h4>
<pre><a href="http://download.oracle.com/javase/6/docs/api/java/util/Date.html?is-external=true" title="class or interface in java.util">Date</a>&nbsp;since()</pre>
<div class="block">Gets the time of last reset.</div>
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<h4>start</h4>
<pre><a href="http://download.oracle.com/javase/6/docs/api/java/util/Date.html?is-external=true" title="class or interface in java.util">Date</a>&nbsp;start()</pre>
<div class="block">Gets the time of start.</div>
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<h4>reset</h4>
<pre>void&nbsp;reset()</pre>
<div class="block">Clears all accumulated statistics.</div>
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<h4>isEnabled</h4>
<pre>boolean&nbsp;isEnabled()</pre>
<div class="block">Returns whether or not statistics will be collected.</div>
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<h4>classNames</h4>
<pre><a href="http://download.oracle.com/javase/6/docs/api/java/util/Set.html?is-external=true" title="class or interface in java.util">Set</a>&lt;<a href="http://download.oracle.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&gt;&nbsp;classNames()</pre>
<div class="block">Returns the types that are known to this cache being tracked.</div>
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<h4>toMap</h4>
<pre><a href="http://download.oracle.com/javase/6/docs/api/java/util/Map.html?is-external=true" title="class or interface in java.util">Map</a>&lt;<a href="http://download.oracle.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>,long[]&gt;&nbsp;toMap()</pre>
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