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<div class="subTitle">org.apache.ignite.cache</div>
<h2 title="Interface CacheMetrics" class="title">Interface CacheMetrics</h2>
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<dt>All Known Subinterfaces:</dt>
<dd><a href="../../../../org/apache/ignite/mxbean/CacheMetricsMXBean.html" title="interface in org.apache.ignite.mxbean">CacheMetricsMXBean</a></dd>
</dl>
<hr>
<br>
<pre>public interface <span class="strong">CacheMetrics</span></pre>
<div class="block">Cache metrics used to obtain statistics on cache itself.
Use <a href="../../../../org/apache/ignite/IgniteCache.html#metrics()"><code>IgniteCache.metrics()</code></a> to obtain metrics for a cache.</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">&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>float</code></td>
<td class="colLast"><code><strong><a href="../../../../org/apache/ignite/cache/CacheMetrics.html#getAverageGetTime()">getAverageGetTime</a></strong>()</code>
<div class="block">The mean time to execute gets.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>float</code></td>
<td class="colLast"><code><strong><a href="../../../../org/apache/ignite/cache/CacheMetrics.html#getAveragePutTime()">getAveragePutTime</a></strong>()</code>
<div class="block">The mean time to execute puts.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>float</code></td>
<td class="colLast"><code><strong><a href="../../../../org/apache/ignite/cache/CacheMetrics.html#getAverageRemoveTime()">getAverageRemoveTime</a></strong>()</code>
<div class="block">The mean time to execute removes.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>float</code></td>
<td class="colLast"><code><strong><a href="../../../../org/apache/ignite/cache/CacheMetrics.html#getAverageTxCommitTime()">getAverageTxCommitTime</a></strong>()</code>
<div class="block">The mean time to execute tx commit.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>float</code></td>
<td class="colLast"><code><strong><a href="../../../../org/apache/ignite/cache/CacheMetrics.html#getAverageTxRollbackTime()">getAverageTxRollbackTime</a></strong>()</code>
<div class="block">The mean time to execute tx rollbacks.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>long</code></td>
<td class="colLast"><code><strong><a href="../../../../org/apache/ignite/cache/CacheMetrics.html#getCacheEvictions()">getCacheEvictions</a></strong>()</code>
<div class="block">The total number of evictions from the cache.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>long</code></td>
<td class="colLast"><code><strong><a href="../../../../org/apache/ignite/cache/CacheMetrics.html#getCacheGets()">getCacheGets</a></strong>()</code>
<div class="block">The total number of requests to the cache.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>float</code></td>
<td class="colLast"><code><strong><a href="../../../../org/apache/ignite/cache/CacheMetrics.html#getCacheHitPercentage()">getCacheHitPercentage</a></strong>()</code>
<div class="block">This is a measure of cache efficiency.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>long</code></td>
<td class="colLast"><code><strong><a href="../../../../org/apache/ignite/cache/CacheMetrics.html#getCacheHits()">getCacheHits</a></strong>()</code>
<div class="block">The number of get requests that were satisfied by the cache.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>long</code></td>
<td class="colLast"><code><strong><a href="../../../../org/apache/ignite/cache/CacheMetrics.html#getCacheMisses()">getCacheMisses</a></strong>()</code>
<div class="block">A miss is a get request that is not satisfied.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>float</code></td>
<td class="colLast"><code><strong><a href="../../../../org/apache/ignite/cache/CacheMetrics.html#getCacheMissPercentage()">getCacheMissPercentage</a></strong>()</code>
<div class="block">Returns the percentage of cache accesses that did not find a requested entry
in the cache.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>long</code></td>
<td class="colLast"><code><strong><a href="../../../../org/apache/ignite/cache/CacheMetrics.html#getCachePuts()">getCachePuts</a></strong>()</code>
<div class="block">The total number of puts to the cache.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>long</code></td>
<td class="colLast"><code><strong><a href="../../../../org/apache/ignite/cache/CacheMetrics.html#getCacheRemovals()">getCacheRemovals</a></strong>()</code>
<div class="block">The total number of removals from the cache.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>long</code></td>
<td class="colLast"><code><strong><a href="../../../../org/apache/ignite/cache/CacheMetrics.html#getCacheTxCommits()">getCacheTxCommits</a></strong>()</code>
<div class="block">Gets total number of transaction commits.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>long</code></td>
<td class="colLast"><code><strong><a href="../../../../org/apache/ignite/cache/CacheMetrics.html#getCacheTxRollbacks()">getCacheTxRollbacks</a></strong>()</code>
<div class="block">Gets total number of transaction rollbacks.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>int</code></td>
<td class="colLast"><code><strong><a href="../../../../org/apache/ignite/cache/CacheMetrics.html#getDhtEvictQueueCurrentSize()">getDhtEvictQueueCurrentSize</a></strong>()</code>
<div class="block">Gets current size of evict queue used to batch up evictions.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>int</code></td>
<td class="colLast"><code><strong><a href="../../../../org/apache/ignite/cache/CacheMetrics.html#getKeySize()">getKeySize</a></strong>()</code>
<div class="block">Gets number of keys in the cache, possibly with <code>null</code> values.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code><a href="http://docs.oracle.com/javase/7/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a></code></td>
<td class="colLast"><code><strong><a href="../../../../org/apache/ignite/cache/CacheMetrics.html#getKeyType()">getKeyType</a></strong>()</code>
<div class="block">Determines the required type of keys for this <code>Cache</code>, if any.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>long</code></td>
<td class="colLast"><code><strong><a href="../../../../org/apache/ignite/cache/CacheMetrics.html#getOffHeapAllocatedSize()">getOffHeapAllocatedSize</a></strong>()</code>
<div class="block">Gets memory size allocated in off-heap.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>long</code></td>
<td class="colLast"><code><strong><a href="../../../../org/apache/ignite/cache/CacheMetrics.html#getOffHeapBackupEntriesCount()">getOffHeapBackupEntriesCount</a></strong>()</code>
<div class="block">Gets number of backup entries stored in off-heap memory.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>long</code></td>
<td class="colLast"><code><strong><a href="../../../../org/apache/ignite/cache/CacheMetrics.html#getOffHeapEntriesCount()">getOffHeapEntriesCount</a></strong>()</code>
<div class="block">Gets number of entries stored in off-heap memory.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>long</code></td>
<td class="colLast"><code><strong><a href="../../../../org/apache/ignite/cache/CacheMetrics.html#getOffHeapEvictions()">getOffHeapEvictions</a></strong>()</code>
<div class="block">The total number of evictions from the off-heap memory.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>long</code></td>
<td class="colLast"><code><strong><a href="../../../../org/apache/ignite/cache/CacheMetrics.html#getOffHeapGets()">getOffHeapGets</a></strong>()</code>
<div class="block">The total number of get requests to the off-heap memory.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>float</code></td>
<td class="colLast"><code><strong><a href="../../../../org/apache/ignite/cache/CacheMetrics.html#getOffHeapHitPercentage()">getOffHeapHitPercentage</a></strong>()</code>
<div class="block">Gets the percentage of hits on off-heap memory.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>long</code></td>
<td class="colLast"><code><strong><a href="../../../../org/apache/ignite/cache/CacheMetrics.html#getOffHeapHits()">getOffHeapHits</a></strong>()</code>
<div class="block">The number of get requests that were satisfied by the off-heap memory.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>long</code></td>
<td class="colLast"><code><strong><a href="../../../../org/apache/ignite/cache/CacheMetrics.html#getOffHeapMisses()">getOffHeapMisses</a></strong>()</code>
<div class="block">A miss is a get request that is not satisfied by off-heap memory.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>float</code></td>
<td class="colLast"><code><strong><a href="../../../../org/apache/ignite/cache/CacheMetrics.html#getOffHeapMissPercentage()">getOffHeapMissPercentage</a></strong>()</code>
<div class="block">Gets the percentage of misses on off-heap memory.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>long</code></td>
<td class="colLast"><code><strong><a href="../../../../org/apache/ignite/cache/CacheMetrics.html#getOffHeapPrimaryEntriesCount()">getOffHeapPrimaryEntriesCount</a></strong>()</code>
<div class="block">Gets number of primary entries stored in off-heap memory.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>long</code></td>
<td class="colLast"><code><strong><a href="../../../../org/apache/ignite/cache/CacheMetrics.html#getOffHeapPuts()">getOffHeapPuts</a></strong>()</code>
<div class="block">The total number of put requests to the off-heap memory.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>long</code></td>
<td class="colLast"><code><strong><a href="../../../../org/apache/ignite/cache/CacheMetrics.html#getOffHeapRemovals()">getOffHeapRemovals</a></strong>()</code>
<div class="block">The total number of removals from the off-heap memory.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>int</code></td>
<td class="colLast"><code><strong><a href="../../../../org/apache/ignite/cache/CacheMetrics.html#getSize()">getSize</a></strong>()</code>
<div class="block">Gets number of non-<code>null</code> values in the cache.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>int</code></td>
<td class="colLast"><code><strong><a href="../../../../org/apache/ignite/cache/CacheMetrics.html#getTxCommitQueueSize()">getTxCommitQueueSize</a></strong>()</code>
<div class="block">Gets committed transaction queue size.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>int</code></td>
<td class="colLast"><code><strong><a href="../../../../org/apache/ignite/cache/CacheMetrics.html#getTxCommittedVersionsSize()">getTxCommittedVersionsSize</a></strong>()</code>
<div class="block">Gets number of cached committed transaction IDs.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>int</code></td>
<td class="colLast"><code><strong><a href="../../../../org/apache/ignite/cache/CacheMetrics.html#getTxDhtCommitQueueSize()">getTxDhtCommitQueueSize</a></strong>()</code>
<div class="block">Gets committed DHT transaction queue size.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>int</code></td>
<td class="colLast"><code><strong><a href="../../../../org/apache/ignite/cache/CacheMetrics.html#getTxDhtCommittedVersionsSize()">getTxDhtCommittedVersionsSize</a></strong>()</code>
<div class="block">Gets number of cached committed DHT transaction IDs.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>int</code></td>
<td class="colLast"><code><strong><a href="../../../../org/apache/ignite/cache/CacheMetrics.html#getTxDhtPrepareQueueSize()">getTxDhtPrepareQueueSize</a></strong>()</code>
<div class="block">Gets prepared DHT transaction queue size.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>int</code></td>
<td class="colLast"><code><strong><a href="../../../../org/apache/ignite/cache/CacheMetrics.html#getTxDhtRolledbackVersionsSize()">getTxDhtRolledbackVersionsSize</a></strong>()</code>
<div class="block">Gets number of cached rolled back DHT transaction IDs.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>int</code></td>
<td class="colLast"><code><strong><a href="../../../../org/apache/ignite/cache/CacheMetrics.html#getTxDhtStartVersionCountsSize()">getTxDhtStartVersionCountsSize</a></strong>()</code>
<div class="block">Gets DHT start version counts map size.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>int</code></td>
<td class="colLast"><code><strong><a href="../../../../org/apache/ignite/cache/CacheMetrics.html#getTxDhtThreadMapSize()">getTxDhtThreadMapSize</a></strong>()</code>
<div class="block">Gets transaction DHT per-thread map size.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>int</code></td>
<td class="colLast"><code><strong><a href="../../../../org/apache/ignite/cache/CacheMetrics.html#getTxDhtXidMapSize()">getTxDhtXidMapSize</a></strong>()</code>
<div class="block">Gets transaction DHT per-Xid map size.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>int</code></td>
<td class="colLast"><code><strong><a href="../../../../org/apache/ignite/cache/CacheMetrics.html#getTxPrepareQueueSize()">getTxPrepareQueueSize</a></strong>()</code>
<div class="block">Gets prepared transaction queue size.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>int</code></td>
<td class="colLast"><code><strong><a href="../../../../org/apache/ignite/cache/CacheMetrics.html#getTxRolledbackVersionsSize()">getTxRolledbackVersionsSize</a></strong>()</code>
<div class="block">Gets number of cached rolled back transaction IDs.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>int</code></td>
<td class="colLast"><code><strong><a href="../../../../org/apache/ignite/cache/CacheMetrics.html#getTxStartVersionCountsSize()">getTxStartVersionCountsSize</a></strong>()</code>
<div class="block">Gets start version counts map size.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>int</code></td>
<td class="colLast"><code><strong><a href="../../../../org/apache/ignite/cache/CacheMetrics.html#getTxThreadMapSize()">getTxThreadMapSize</a></strong>()</code>
<div class="block">Gets transaction per-thread map size.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>int</code></td>
<td class="colLast"><code><strong><a href="../../../../org/apache/ignite/cache/CacheMetrics.html#getTxXidMapSize()">getTxXidMapSize</a></strong>()</code>
<div class="block">Gets transaction per-Xid map size.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code><a href="http://docs.oracle.com/javase/7/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a></code></td>
<td class="colLast"><code><strong><a href="../../../../org/apache/ignite/cache/CacheMetrics.html#getValueType()">getValueType</a></strong>()</code>
<div class="block">Determines the required type of values for this <code>Cache</code>, if any.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>int</code></td>
<td class="colLast"><code><strong><a href="../../../../org/apache/ignite/cache/CacheMetrics.html#getWriteBehindBufferSize()">getWriteBehindBufferSize</a></strong>()</code>
<div class="block">Gets count of entries that were processed by the write-behind store and have not been
flushed to the underlying store yet.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>int</code></td>
<td class="colLast"><code><strong><a href="../../../../org/apache/ignite/cache/CacheMetrics.html#getWriteBehindCriticalOverflowCount()">getWriteBehindCriticalOverflowCount</a></strong>()</code>
<div class="block">Gets count of write buffer overflow events in progress at the moment.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>int</code></td>
<td class="colLast"><code><strong><a href="../../../../org/apache/ignite/cache/CacheMetrics.html#getWriteBehindErrorRetryCount()">getWriteBehindErrorRetryCount</a></strong>()</code>
<div class="block">Gets count of cache entries that are in a store-retry state.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>long</code></td>
<td class="colLast"><code><strong><a href="../../../../org/apache/ignite/cache/CacheMetrics.html#getWriteBehindFlushFrequency()">getWriteBehindFlushFrequency</a></strong>()</code>
<div class="block">Gets the cache flush frequency.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>int</code></td>
<td class="colLast"><code><strong><a href="../../../../org/apache/ignite/cache/CacheMetrics.html#getWriteBehindFlushSize()">getWriteBehindFlushSize</a></strong>()</code>
<div class="block">Gets the maximum size of the write-behind buffer.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>int</code></td>
<td class="colLast"><code><strong><a href="../../../../org/apache/ignite/cache/CacheMetrics.html#getWriteBehindFlushThreadCount()">getWriteBehindFlushThreadCount</a></strong>()</code>
<div class="block">Gets the number of flush threads that will perform store update operations.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>int</code></td>
<td class="colLast"><code><strong><a href="../../../../org/apache/ignite/cache/CacheMetrics.html#getWriteBehindStoreBatchSize()">getWriteBehindStoreBatchSize</a></strong>()</code>
<div class="block">Gets the maximum count of similar (put or remove) operations that can be grouped to a single batch.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>int</code></td>
<td class="colLast"><code><strong><a href="../../../../org/apache/ignite/cache/CacheMetrics.html#getWriteBehindTotalCriticalOverflowCount()">getWriteBehindTotalCriticalOverflowCount</a></strong>()</code>
<div class="block">Gets count of write buffer overflow events since initialization.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>boolean</code></td>
<td class="colLast"><code><strong><a href="../../../../org/apache/ignite/cache/CacheMetrics.html#isEmpty()">isEmpty</a></strong>()</code>
<div class="block">Returns <code>true</code> if this cache is empty.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>boolean</code></td>
<td class="colLast"><code><strong><a href="../../../../org/apache/ignite/cache/CacheMetrics.html#isManagementEnabled()">isManagementEnabled</a></strong>()</code>
<div class="block">Checks whether management is enabled on this cache.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>boolean</code></td>
<td class="colLast"><code><strong><a href="../../../../org/apache/ignite/cache/CacheMetrics.html#isReadThrough()">isReadThrough</a></strong>()</code>
<div class="block">Determines if a <code>Cache</code> should operate in read-through mode.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>boolean</code></td>
<td class="colLast"><code><strong><a href="../../../../org/apache/ignite/cache/CacheMetrics.html#isStatisticsEnabled()">isStatisticsEnabled</a></strong>()</code>
<div class="block">Checks whether statistics collection is enabled in this cache.</div>
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<tr class="altColor">
<td class="colFirst"><code>boolean</code></td>
<td class="colLast"><code><strong><a href="../../../../org/apache/ignite/cache/CacheMetrics.html#isStoreByValue()">isStoreByValue</a></strong>()</code>
<div class="block">Whether storeByValue <code>true</code> or storeByReference <code>false</code>.</div>
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<tr class="rowColor">
<td class="colFirst"><code>boolean</code></td>
<td class="colLast"><code><strong><a href="../../../../org/apache/ignite/cache/CacheMetrics.html#isWriteBehindEnabled()">isWriteBehindEnabled</a></strong>()</code>
<div class="block">Returns <code>true</code> if write-behind is enabled.</div>
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<tr class="altColor">
<td class="colFirst"><code>boolean</code></td>
<td class="colLast"><code><strong><a href="../../../../org/apache/ignite/cache/CacheMetrics.html#isWriteThrough()">isWriteThrough</a></strong>()</code>
<div class="block">Determines if a <code>Cache</code> should operate in "write-through"
mode.</div>
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<tr class="rowColor">
<td class="colFirst"><code><a href="http://docs.oracle.com/javase/7/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a></code></td>
<td class="colLast"><code><strong><a href="../../../../org/apache/ignite/cache/CacheMetrics.html#name()">name</a></strong>()</code>
<div class="block">Gets name of this cache.</div>
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<pre>long&nbsp;getCacheHits()</pre>
<div class="block">The number of get requests that were satisfied by the cache.</div>
<dl><dt><span class="strong">Returns:</span></dt><dd>The number of hits.</dd></dl>
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<pre>float&nbsp;getCacheHitPercentage()</pre>
<div class="block">This is a measure of cache efficiency.</div>
<dl><dt><span class="strong">Returns:</span></dt><dd>The percentage of successful hits, as a decimal e.g 75.</dd></dl>
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<pre>long&nbsp;getCacheMisses()</pre>
<div class="block">A miss is a get request that is not satisfied.</div>
<dl><dt><span class="strong">Returns:</span></dt><dd>The number of misses.</dd></dl>
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<pre>float&nbsp;getCacheMissPercentage()</pre>
<div class="block">Returns the percentage of cache accesses that did not find a requested entry
in the cache.</div>
<dl><dt><span class="strong">Returns:</span></dt><dd>The percentage of accesses that failed to find anything.</dd></dl>
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<pre>long&nbsp;getCacheGets()</pre>
<div class="block">The total number of requests to the cache. This will be equal to the sum of
the hits and misses.</div>
<dl><dt><span class="strong">Returns:</span></dt><dd>The number of gets.</dd></dl>
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<pre>long&nbsp;getCachePuts()</pre>
<div class="block">The total number of puts to the cache.</div>
<dl><dt><span class="strong">Returns:</span></dt><dd>The number of puts.</dd></dl>
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<pre>long&nbsp;getCacheRemovals()</pre>
<div class="block">The total number of removals from the cache. This does not include evictions,
where the cache itself initiates the removal to make space.</div>
<dl><dt><span class="strong">Returns:</span></dt><dd>The number of removals.</dd></dl>
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<pre>long&nbsp;getCacheEvictions()</pre>
<div class="block">The total number of evictions from the cache. An eviction is a removal
initiated by the cache itself to free up space. An eviction is not treated as
a removal and does not appear in the removal counts.</div>
<dl><dt><span class="strong">Returns:</span></dt><dd>The number of evictions.</dd></dl>
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<pre>float&nbsp;getAverageGetTime()</pre>
<div class="block">The mean time to execute gets.</div>
<dl><dt><span class="strong">Returns:</span></dt><dd>The time in µs.</dd></dl>
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<pre>float&nbsp;getAveragePutTime()</pre>
<div class="block">The mean time to execute puts.</div>
<dl><dt><span class="strong">Returns:</span></dt><dd>The time in µs.</dd></dl>
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<pre>float&nbsp;getAverageRemoveTime()</pre>
<div class="block">The mean time to execute removes.</div>
<dl><dt><span class="strong">Returns:</span></dt><dd>The time in µs.</dd></dl>
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<pre>float&nbsp;getAverageTxCommitTime()</pre>
<div class="block">The mean time to execute tx commit.</div>
<dl><dt><span class="strong">Returns:</span></dt><dd>The time in µs.</dd></dl>
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<pre>float&nbsp;getAverageTxRollbackTime()</pre>
<div class="block">The mean time to execute tx rollbacks.</div>
<dl><dt><span class="strong">Returns:</span></dt><dd>Number of transaction rollbacks.</dd></dl>
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<pre>long&nbsp;getCacheTxCommits()</pre>
<div class="block">Gets total number of transaction commits.</div>
<dl><dt><span class="strong">Returns:</span></dt><dd>Number of transaction commits.</dd></dl>
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<pre>long&nbsp;getCacheTxRollbacks()</pre>
<div class="block">Gets total number of transaction rollbacks.</div>
<dl><dt><span class="strong">Returns:</span></dt><dd>Number of transaction rollbacks.</dd></dl>
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<div class="block">Gets name of this cache.</div>
<dl><dt><span class="strong">Returns:</span></dt><dd>Cache name.</dd></dl>
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<pre>long&nbsp;getOffHeapGets()</pre>
<div class="block">The total number of get requests to the off-heap memory.</div>
<dl><dt><span class="strong">Returns:</span></dt><dd>The number of gets.</dd></dl>
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<pre>long&nbsp;getOffHeapPuts()</pre>
<div class="block">The total number of put requests to the off-heap memory.</div>
<dl><dt><span class="strong">Returns:</span></dt><dd>The number of puts.</dd></dl>
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<pre>long&nbsp;getOffHeapRemovals()</pre>
<div class="block">The total number of removals from the off-heap memory. This does not include evictions.</div>
<dl><dt><span class="strong">Returns:</span></dt><dd>The number of removals.</dd></dl>
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<pre>long&nbsp;getOffHeapEvictions()</pre>
<div class="block">The total number of evictions from the off-heap memory.</div>
<dl><dt><span class="strong">Returns:</span></dt><dd>The number of evictions.</dd></dl>
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<pre>long&nbsp;getOffHeapHits()</pre>
<div class="block">The number of get requests that were satisfied by the off-heap memory.</div>
<dl><dt><span class="strong">Returns:</span></dt><dd>The off-heap hits number.</dd></dl>
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<pre>float&nbsp;getOffHeapHitPercentage()</pre>
<div class="block">Gets the percentage of hits on off-heap memory.</div>
<dl><dt><span class="strong">Returns:</span></dt><dd>The percentage of hits on off-heap memory.</dd></dl>
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<pre>long&nbsp;getOffHeapMisses()</pre>
<div class="block">A miss is a get request that is not satisfied by off-heap memory.</div>
<dl><dt><span class="strong">Returns:</span></dt><dd>The off-heap misses number.</dd></dl>
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<pre>float&nbsp;getOffHeapMissPercentage()</pre>
<div class="block">Gets the percentage of misses on off-heap memory.</div>
<dl><dt><span class="strong">Returns:</span></dt><dd>The percentage of misses on off-heap memory.</dd></dl>
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<pre>long&nbsp;getOffHeapEntriesCount()</pre>
<div class="block">Gets number of entries stored in off-heap memory.</div>
<dl><dt><span class="strong">Returns:</span></dt><dd>Number of entries stored in off-heap memory.</dd></dl>
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<pre>long&nbsp;getOffHeapPrimaryEntriesCount()</pre>
<div class="block">Gets number of primary entries stored in off-heap memory.</div>
<dl><dt><span class="strong">Returns:</span></dt><dd>Number of primary entries stored in off-heap memory.</dd></dl>
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<pre>long&nbsp;getOffHeapBackupEntriesCount()</pre>
<div class="block">Gets number of backup entries stored in off-heap memory.</div>
<dl><dt><span class="strong">Returns:</span></dt><dd>Number of backup entries stored in off-heap memory.</dd></dl>
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<h4>getOffHeapAllocatedSize</h4>
<pre>long&nbsp;getOffHeapAllocatedSize()</pre>
<div class="block">Gets memory size allocated in off-heap.</div>
<dl><dt><span class="strong">Returns:</span></dt><dd>Memory size allocated in off-heap.</dd></dl>
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<h4>getSize</h4>
<pre>int&nbsp;getSize()</pre>
<div class="block">Gets number of non-<code>null</code> values in the cache.</div>
<dl><dt><span class="strong">Returns:</span></dt><dd>Number of non-<code>null</code> values in the cache.</dd></dl>
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<a name="getKeySize()">
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<h4>getKeySize</h4>
<pre>int&nbsp;getKeySize()</pre>
<div class="block">Gets number of keys in the cache, possibly with <code>null</code> values.</div>
<dl><dt><span class="strong">Returns:</span></dt><dd>Number of keys in the cache.</dd></dl>
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<pre>boolean&nbsp;isEmpty()</pre>
<div class="block">Returns <code>true</code> if this cache is empty.</div>
<dl><dt><span class="strong">Returns:</span></dt><dd><code>True</code> if this cache is empty.</dd></dl>
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<a name="getDhtEvictQueueCurrentSize()">
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<h4>getDhtEvictQueueCurrentSize</h4>
<pre>int&nbsp;getDhtEvictQueueCurrentSize()</pre>
<div class="block">Gets current size of evict queue used to batch up evictions.</div>
<dl><dt><span class="strong">Returns:</span></dt><dd>Current size of evict queue.</dd></dl>
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<h4>getTxThreadMapSize</h4>
<pre>int&nbsp;getTxThreadMapSize()</pre>
<div class="block">Gets transaction per-thread map size.</div>
<dl><dt><span class="strong">Returns:</span></dt><dd>Thread map size.</dd></dl>
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<h4>getTxXidMapSize</h4>
<pre>int&nbsp;getTxXidMapSize()</pre>
<div class="block">Gets transaction per-Xid map size.</div>
<dl><dt><span class="strong">Returns:</span></dt><dd>Transaction per-Xid map size.</dd></dl>
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<h4>getTxCommitQueueSize</h4>
<pre>int&nbsp;getTxCommitQueueSize()</pre>
<div class="block">Gets committed transaction queue size.</div>
<dl><dt><span class="strong">Returns:</span></dt><dd>Committed transaction queue size.</dd></dl>
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<a name="getTxPrepareQueueSize()">
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<h4>getTxPrepareQueueSize</h4>
<pre>int&nbsp;getTxPrepareQueueSize()</pre>
<div class="block">Gets prepared transaction queue size.</div>
<dl><dt><span class="strong">Returns:</span></dt><dd>Prepared transaction queue size.</dd></dl>
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<h4>getTxStartVersionCountsSize</h4>
<pre>int&nbsp;getTxStartVersionCountsSize()</pre>
<div class="block">Gets start version counts map size.</div>
<dl><dt><span class="strong">Returns:</span></dt><dd>Start version counts map size.</dd></dl>
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<a name="getTxCommittedVersionsSize()">
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<h4>getTxCommittedVersionsSize</h4>
<pre>int&nbsp;getTxCommittedVersionsSize()</pre>
<div class="block">Gets number of cached committed transaction IDs.</div>
<dl><dt><span class="strong">Returns:</span></dt><dd>Number of cached committed transaction IDs.</dd></dl>
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<pre>int&nbsp;getTxRolledbackVersionsSize()</pre>
<div class="block">Gets number of cached rolled back transaction IDs.</div>
<dl><dt><span class="strong">Returns:</span></dt><dd>Number of cached rolled back transaction IDs.</dd></dl>
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<pre>int&nbsp;getTxDhtThreadMapSize()</pre>
<div class="block">Gets transaction DHT per-thread map size.</div>
<dl><dt><span class="strong">Returns:</span></dt><dd>DHT thread map size.</dd></dl>
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<pre>int&nbsp;getTxDhtXidMapSize()</pre>
<div class="block">Gets transaction DHT per-Xid map size.</div>
<dl><dt><span class="strong">Returns:</span></dt><dd>Transaction DHT per-Xid map size.</dd></dl>
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<a name="getTxDhtCommitQueueSize()">
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<pre>int&nbsp;getTxDhtCommitQueueSize()</pre>
<div class="block">Gets committed DHT transaction queue size.</div>
<dl><dt><span class="strong">Returns:</span></dt><dd>Committed DHT transaction queue size.</dd></dl>
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<pre>int&nbsp;getTxDhtPrepareQueueSize()</pre>
<div class="block">Gets prepared DHT transaction queue size.</div>
<dl><dt><span class="strong">Returns:</span></dt><dd>Prepared DHT transaction queue size.</dd></dl>
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<a name="getTxDhtStartVersionCountsSize()">
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<h4>getTxDhtStartVersionCountsSize</h4>
<pre>int&nbsp;getTxDhtStartVersionCountsSize()</pre>
<div class="block">Gets DHT start version counts map size.</div>
<dl><dt><span class="strong">Returns:</span></dt><dd>DHT start version counts map size.</dd></dl>
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<pre>int&nbsp;getTxDhtCommittedVersionsSize()</pre>
<div class="block">Gets number of cached committed DHT transaction IDs.</div>
<dl><dt><span class="strong">Returns:</span></dt><dd>Number of cached committed DHT transaction IDs.</dd></dl>
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<h4>getTxDhtRolledbackVersionsSize</h4>
<pre>int&nbsp;getTxDhtRolledbackVersionsSize()</pre>
<div class="block">Gets number of cached rolled back DHT transaction IDs.</div>
<dl><dt><span class="strong">Returns:</span></dt><dd>Number of cached rolled back DHT transaction IDs.</dd></dl>
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<a name="isWriteBehindEnabled()">
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<pre>boolean&nbsp;isWriteBehindEnabled()</pre>
<div class="block">Returns <code>true</code> if write-behind is enabled.</div>
<dl><dt><span class="strong">Returns:</span></dt><dd><code>True</code> if write-behind is enabled.</dd></dl>
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<h4>getWriteBehindFlushSize</h4>
<pre>int&nbsp;getWriteBehindFlushSize()</pre>
<div class="block">Gets the maximum size of the write-behind buffer. When the count of unique keys
in write buffer exceeds this value, the buffer is scheduled for write to the underlying store.
<p/>
If this value is <code>0</code>, then flush is performed only on time-elapsing basis. However,
when this value is <code>0</code>, the cache critical size is set to
<a href="../../../../org/apache/ignite/configuration/CacheConfiguration.html#DFLT_WRITE_BEHIND_CRITICAL_SIZE"><code>CacheConfiguration.DFLT_WRITE_BEHIND_CRITICAL_SIZE</code></a></div>
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<pre>int&nbsp;getWriteBehindFlushThreadCount()</pre>
<div class="block">Gets the number of flush threads that will perform store update operations.</div>
<dl><dt><span class="strong">Returns:</span></dt><dd>Count of worker threads.</dd></dl>
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<pre>long&nbsp;getWriteBehindFlushFrequency()</pre>
<div class="block">Gets the cache flush frequency. All pending operations on the underlying store will be performed
within time interval not less then this value.
<p/>
If this value is <code>0</code>, then flush is performed only when buffer size exceeds flush size.</div>
<dl><dt><span class="strong">Returns:</span></dt><dd>Flush frequency in milliseconds.</dd></dl>
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<pre>int&nbsp;getWriteBehindStoreBatchSize()</pre>
<div class="block">Gets the maximum count of similar (put or remove) operations that can be grouped to a single batch.</div>
<dl><dt><span class="strong">Returns:</span></dt><dd>Maximum size of batch.</dd></dl>
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<pre>int&nbsp;getWriteBehindTotalCriticalOverflowCount()</pre>
<div class="block">Gets count of write buffer overflow events since initialization. Each overflow event causes
the ongoing flush operation to be performed synchronously.</div>
<dl><dt><span class="strong">Returns:</span></dt><dd>Count of cache overflow events since start.</dd></dl>
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<pre>int&nbsp;getWriteBehindCriticalOverflowCount()</pre>
<div class="block">Gets count of write buffer overflow events in progress at the moment. Each overflow event causes
the ongoing flush operation to be performed synchronously.</div>
<dl><dt><span class="strong">Returns:</span></dt><dd>Count of cache overflow events since start.</dd></dl>
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<pre>int&nbsp;getWriteBehindErrorRetryCount()</pre>
<div class="block">Gets count of cache entries that are in a store-retry state. An entry is assigned a store-retry state
when underlying store failed due some reason and cache has enough space to retain this entry till
the next try.</div>
<dl><dt><span class="strong">Returns:</span></dt><dd>Count of entries in store-retry state.</dd></dl>
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<pre>int&nbsp;getWriteBehindBufferSize()</pre>
<div class="block">Gets count of entries that were processed by the write-behind store and have not been
flushed to the underlying store yet.</div>
<dl><dt><span class="strong">Returns:</span></dt><dd>Total count of entries in cache store internal buffer.</dd></dl>
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<pre><a href="http://docs.oracle.com/javase/7/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;getKeyType()</pre>
<div class="block">Determines the required type of keys for this <code>Cache</code>, if any.</div>
<dl><dt><span class="strong">Returns:</span></dt><dd>The fully qualified class name of the key type,
or <code>"java.lang.Object"</code> if the type is undefined.</dd></dl>
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<pre><a href="http://docs.oracle.com/javase/7/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;getValueType()</pre>
<div class="block">Determines the required type of values for this <code>Cache</code>, if any.</div>
<dl><dt><span class="strong">Returns:</span></dt><dd>The fully qualified class name of the value type,
or <code>"java.lang.Object"</code> if the type is undefined.</dd></dl>
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<pre>boolean&nbsp;isStoreByValue()</pre>
<div class="block">Whether storeByValue <code>true</code> or storeByReference <code>false</code>.
When <code>true</code>, both keys and values are stored by value.
<p>
When <code>false</code>, both keys and values are stored by reference.
Caches stored by reference are capable of mutation by any threads holding
the reference. The effects are:
<ul>
<li>if the key is mutated, then the key may not be retrievable or
removable</li>
<li>if the value is mutated, then all threads in the JVM can potentially
observe those mutations, subject to the normal Java Memory Model rules.</li>
</ul>
Storage by reference only applies to the local heap. If an entry is moved off
heap it will need to be transformed into a representation. Any mutations that
occur after transformation may not be reflected in the cache.
<p>
When a cache is storeByValue, any mutation to the key or value does not affect
the key of value stored in the cache.
<p>
The default value is <code>true</code>.</div>
<dl><dt><span class="strong">Returns:</span></dt><dd><code>True</code> if the cache is store by value.</dd></dl>
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<pre>boolean&nbsp;isStatisticsEnabled()</pre>
<div class="block">Checks whether statistics collection is enabled in this cache.
<p>
The default value is <code>false</code>.</div>
<dl><dt><span class="strong">Returns:</span></dt><dd><code>True</code> if statistics collection is enabled.</dd></dl>
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<pre>boolean&nbsp;isManagementEnabled()</pre>
<div class="block">Checks whether management is enabled on this cache.
<p>
The default value is <code>false</code>.</div>
<dl><dt><span class="strong">Returns:</span></dt><dd><code>true</code> if management is enabled.</dd></dl>
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<pre>boolean&nbsp;isReadThrough()</pre>
<div class="block">Determines if a <code>Cache</code> should operate in read-through mode.
<p>
The default value is <code>false</code></div>
<dl><dt><span class="strong">Returns:</span></dt><dd><code>True</code> when a <code>Cache</code> is in
"read-through" mode.</dd><dt><span class="strong">See Also:</span></dt><dd><code>CacheLoader</code></dd></dl>
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<pre>boolean&nbsp;isWriteThrough()</pre>
<div class="block">Determines if a <code>Cache</code> should operate in "write-through"
mode.
<p>
will appropriately cause the configured <code>CacheWriter</code> to be invoked.
<p>
The default value is <code>false</code></div>
<dl><dt><span class="strong">Returns:</span></dt><dd><code>True</code> when a <code>Cache</code> is in "write-through" mode.</dd><dt><span class="strong">See Also:</span></dt><dd><code>CacheWriter</code></dd></dl>
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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>2017 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>2.0.0</strong> </td> </tr> <tr style="padding: 0; margin: 0"> <td> <b>Release Date</b> </td> <td>:&nbsp;&nbsp; April 30 2017 </td> </tr> </tbody> </table> </td> </tr> </table></small></p>
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