cassandra-server

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">  <html lang="en"> <head>  <title>RowCacheKey (apache-cassandra API)</title> <meta name="date" content="2014-09-07"> <link rel="stylesheet" type="text/css" href="../../../../stylesheet.css" title="Style"> </head> <body> <script type="text/javascript"> </script> <noscript> <div>JavaScript is disabled on your browser.</div> </noscript>  <div class="topNav"><a name="navbar_top">  </a><a href="#skip-navbar_top" title="Skip navigation links"></a><a name="navbar_top_firstrow">  </a> <ul class="navList" title="Navigation"> <li><a href="../../../../overview-summary.html">Overview</a></li> <li><a href="package-summary.html">Package</a></li> <li class="navBarCell1Rev">Class</li> <li><a href="class-use/RowCacheKey.html">Use</a></li> <li><a href="package-tree.html">Tree</a></li> <li><a href="../../../../deprecated-list.html">Deprecated</a></li> <li><a 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<li><a href="#constructor_summary">Constr</a> | </li> <li><a href="#method_summary">Method</a></li> </ul> <ul class="subNavList"> <li>Detail: </li> <li><a href="#field_detail">Field</a> | </li> <li><a href="#constructor_detail">Constr</a> | </li> <li><a href="#method_detail">Method</a></li> </ul> </div> <a name="skip-navbar_top">  </a></div>   <div class="header"> <div class="subTitle">org.apache.cassandra.cache</div> <h2 title="Class RowCacheKey" class="title">Class RowCacheKey</h2> </div> <div class="contentContainer"> <ul class="inheritance"> <li>java.lang.Object</li> <li> <ul class="inheritance"> <li>org.apache.cassandra.cache.RowCacheKey</li> </ul> </li> </ul> <div class="description"> <ul class="blockList"> <li class="blockList"> <dl> <dt>All Implemented Interfaces:</dt> <dd>java.lang.Comparable<<a href="../../../../org/apache/cassandra/cache/RowCacheKey.html" title="class in org.apache.cassandra.cache">RowCacheKey</a>>, <a href="../../../../org/apache/cassandra/cache/CacheKey.html" title="interface in org.apache.cassandra.cache">CacheKey</a>, <a href="../../../../org/apache/cassandra/cache/IMeasurableMemory.html" title="interface in org.apache.cassandra.cache">IMeasurableMemory</a></dd> </dl> <hr> <br> <pre>public class <span class="strong">RowCacheKey</span> extends java.lang.Object implements <a href="../../../../org/apache/cassandra/cache/CacheKey.html" title="interface in org.apache.cassandra.cache">CacheKey</a>, java.lang.Comparable<<a href="../../../../org/apache/cassandra/cache/RowCacheKey.html" title="class in org.apache.cassandra.cache">RowCacheKey</a>></pre> </li> </ul> </div> <div class="summary"> <ul class="blockList"> <li class="blockList">  <ul class="blockList"> <li class="blockList"><a name="nested_class_summary">  </a> <h3>Nested Class Summary</h3> <ul class="blockList"> <li class="blockList"><a name="nested_classes_inherited_from_class_org.apache.cassandra.cache.CacheKey">  </a> <h3>Nested classes/interfaces inherited from interface org.apache.cassandra.cache.<a href="../../../../org/apache/cassandra/cache/CacheKey.html" title="interface in org.apache.cassandra.cache">CacheKey</a></h3> <code><a href="../../../../org/apache/cassandra/cache/CacheKey.PathInfo.html" title="class in org.apache.cassandra.cache">CacheKey.PathInfo</a></code></li> </ul> </li> </ul>  <ul class="blockList"> <li class="blockList"><a name="field_summary">  </a> <h3>Field Summary</h3> <table class="overviewSummary" border="0" cellpadding="3" cellspacing="0" summary="Field Summary table, listing fields, and an explanation"> <caption><span>Fields</span><span class="tabEnd"> </span></caption> <tr> <th class="colFirst" scope="col">Modifier and Type</th> <th class="colLast" scope="col">Field and Description</th> </tr> <tr class="altColor"> <td class="colFirst"><code>java.util.UUID</code></td> <td class="colLast"><code><strong><a href="../../../../org/apache/cassandra/cache/RowCacheKey.html#cfId">cfId</a></strong></code> </td> </tr> <tr class="rowColor"> <td class="colFirst"><code>byte[]</code></td> <td class="colLast"><code><strong><a href="../../../../org/apache/cassandra/cache/RowCacheKey.html#key">key</a></strong></code> </td> </tr> </table> </li> </ul>  <ul class="blockList"> <li class="blockList"><a name="constructor_summary">  </a> <h3>Constructor Summary</h3> <table class="overviewSummary" border="0" cellpadding="3" cellspacing="0" summary="Constructor Summary table, listing constructors, and an explanation"> <caption><span>Constructors</span><span class="tabEnd"> </span></caption> <tr> <th class="colOne" scope="col">Constructor and Description</th> </tr> <tr class="altColor"> <td class="colOne"><code><strong><a href="../../../../org/apache/cassandra/cache/RowCacheKey.html#RowCacheKey(java.util.UUID,%20java.nio.ByteBuffer)">RowCacheKey</a></strong>(java.util.UUID cfId, java.nio.ByteBuffer key)</code> </td> </tr> <tr class="rowColor"> <td class="colOne"><code><strong><a href="../../../../org/apache/cassandra/cache/RowCacheKey.html#RowCacheKey(java.util.UUID,%20org.apache.cassandra.db.DecoratedKey)">RowCacheKey</a></strong>(java.util.UUID cfId, <a href="../../../../org/apache/cassandra/db/DecoratedKey.html" title="class in org.apache.cassandra.db">DecoratedKey</a> key)</code> </td> </tr> </table> </li> </ul>  <ul class="blockList"> <li class="blockList"><a name="method_summary">  </a> <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="../../../../org/apache/cassandra/cache/RowCacheKey.html#compareTo(org.apache.cassandra.cache.RowCacheKey)">compareTo</a></strong>(<a href="../../../../org/apache/cassandra/cache/RowCacheKey.html" title="class in org.apache.cassandra.cache">RowCacheKey</a> otherKey)</code> </td> </tr> <tr class="rowColor"> <td class="colFirst"><code>boolean</code></td> <td class="colLast"><code><strong><a href="../../../../org/apache/cassandra/cache/RowCacheKey.html#equals(java.lang.Object)">equals</a></strong>(java.lang.Object o)</code> </td> </tr> <tr class="altColor"> <td class="colFirst"><code><a href="../../../../org/apache/cassandra/cache/CacheKey.PathInfo.html" title="class in org.apache.cassandra.cache">CacheKey.PathInfo</a></code></td> <td class="colLast"><code><strong><a href="../../../../org/apache/cassandra/cache/RowCacheKey.html#getPathInfo()">getPathInfo</a></strong>()</code> </td> </tr> <tr class="rowColor"> <td class="colFirst"><code>int</code></td> <td class="colLast"><code><strong><a href="../../../../org/apache/cassandra/cache/RowCacheKey.html#hashCode()">hashCode</a></strong>()</code> </td> </tr> <tr class="altColor"> <td class="colFirst"><code>java.lang.String</code></td> <td class="colLast"><code><strong><a href="../../../../org/apache/cassandra/cache/RowCacheKey.html#toString()">toString</a></strong>()</code> </td> </tr> <tr class="rowColor"> <td class="colFirst"><code>long</code></td> <td class="colLast"><code><strong><a href="../../../../org/apache/cassandra/cache/RowCacheKey.html#unsharedHeapSize()">unsharedHeapSize</a></strong>()</code> </td> </tr> </table> <ul class="blockList"> <li class="blockList"><a name="methods_inherited_from_class_java.lang.Object">  </a> <h3>Methods inherited from class java.lang.Object</h3> <code>clone, finalize, getClass, notify, notifyAll, wait, wait, wait</code></li> </ul> </li> </ul> </li> </ul> </div> <div class="details"> <ul class="blockList"> <li class="blockList">  <ul class="blockList"> <li class="blockList"><a name="field_detail">  </a> <h3>Field Detail</h3> <a name="cfId">  </a> <ul class="blockList"> <li class="blockList"> <h4>cfId</h4> <pre>public final java.util.UUID cfId</pre> </li> </ul> <a name="key">  </a> <ul class="blockListLast"> <li class="blockList"> <h4>key</h4> <pre>public final byte[] key</pre> </li> </ul> </li> </ul>  <ul class="blockList"> <li class="blockList"><a name="constructor_detail">  </a> <h3>Constructor Detail</h3> <a name="RowCacheKey(java.util.UUID, org.apache.cassandra.db.DecoratedKey)">  </a> <ul class="blockList"> <li class="blockList"> <h4>RowCacheKey</h4> <pre>public RowCacheKey(java.util.UUID cfId, <a href="../../../../org/apache/cassandra/db/DecoratedKey.html" title="class in org.apache.cassandra.db">DecoratedKey</a> key)</pre> </li> </ul> <a name="RowCacheKey(java.util.UUID, java.nio.ByteBuffer)">  </a> <ul class="blockListLast"> <li class="blockList"> <h4>RowCacheKey</h4> <pre>public RowCacheKey(java.util.UUID cfId, java.nio.ByteBuffer key)</pre> </li> </ul> </li> </ul>  <ul class="blockList"> <li class="blockList"><a name="method_detail">  </a> <h3>Method Detail</h3> <a name="getPathInfo()">  </a> <ul class="blockList"> <li class="blockList"> <h4>getPathInfo</h4> <pre>public <a href="../../../../org/apache/cassandra/cache/CacheKey.PathInfo.html" title="class in org.apache.cassandra.cache">CacheKey.PathInfo</a> getPathInfo()</pre> <dl> <dt><strong>Specified by:</strong></dt> <dd><code><a href="../../../../org/apache/cassandra/cache/CacheKey.html#getPathInfo()">getPathInfo</a></code> in interface <code><a href="../../../../org/apache/cassandra/cache/CacheKey.html" title="interface in org.apache.cassandra.cache">CacheKey</a></code></dd> <dt><span class="strong">Returns:</span></dt><dd>The keyspace and ColumnFamily names to which this key belongs</dd></dl> </li> </ul> <a name="unsharedHeapSize()">  </a> <ul class="blockList"> <li class="blockList"> <h4>unsharedHeapSize</h4> <pre>public long unsharedHeapSize()</pre> <dl> <dt><strong>Specified by:</strong></dt> <dd><code><a href="../../../../org/apache/cassandra/cache/IMeasurableMemory.html#unsharedHeapSize()">unsharedHeapSize</a></code> in interface <code><a href="../../../../org/apache/cassandra/cache/IMeasurableMemory.html" title="interface in org.apache.cassandra.cache">IMeasurableMemory</a></code></dd> <dt><span class="strong">Returns:</span></dt><dd>the amount of on-heap memory retained by the object that might be reclaimed if the object were reclaimed, i.e. it should try to exclude globally cached data where possible, or counting portions of arrays that are referenced by the object but used by other objects only (e.g. slabbed byte-buffers), etc.</dd></dl> </li> </ul> <a name="equals(java.lang.Object)">  </a> <ul class="blockList"> <li class="blockList"> <h4>equals</h4> <pre>public boolean equals(java.lang.Object o)</pre> <dl> <dt><strong>Overrides:</strong></dt> <dd><code>equals</code> in class <code>java.lang.Object</code></dd> </dl> </li> </ul> <a name="hashCode()">  </a> <ul class="blockList"> <li class="blockList"> <h4>hashCode</h4> <pre>public int hashCode()</pre> <dl> <dt><strong>Overrides:</strong></dt> <dd><code>hashCode</code> in class <code>java.lang.Object</code></dd> </dl> </li> </ul> <a name="compareTo(org.apache.cassandra.cache.RowCacheKey)">  </a> <ul class="blockList"> <li class="blockList"> <h4>compareTo</h4> <pre>public int compareTo(<a href="../../../../org/apache/cassandra/cache/RowCacheKey.html" title="class in org.apache.cassandra.cache">RowCacheKey</a> otherKey)</pre> <dl> <dt><strong>Specified by:</strong></dt> <dd><code>compareTo</code> in interface <code>java.lang.Comparable<<a href="../../../../org/apache/cassandra/cache/RowCacheKey.html" title="class in org.apache.cassandra.cache">RowCacheKey</a>></code></dd> </dl> </li> </ul> <a name="toString()">  </a> <ul class="blockListLast"> <li class="blockList"> <h4>toString</h4> <pre>public java.lang.String toString()</pre> <dl> <dt><strong>Overrides:</strong></dt> <dd><code>toString</code> in class <code>java.lang.Object</code></dd> </dl> </li> </ul> </li> </ul> </li> </ul> </div> </div>   <div class="bottomNav"><a name="navbar_bottom">  </a><a href="#skip-navbar_bottom" title="Skip navigation links"></a><a name="navbar_bottom_firstrow">  </a> <ul class="navList" title="Navigation"> <li><a href="../../../../overview-summary.html">Overview</a></li> <li><a href="package-summary.html">Package</a></li> <li class="navBarCell1Rev">Class</li> <li><a href="class-use/RowCacheKey.html">Use</a></li> <li><a href="package-tree.html">Tree</a></li> <li><a href="../../../../deprecated-list.html">Deprecated</a></li> <li><a href="../../../../index-all.html">Index</a></li> <li><a href="../../../../help-doc.html">Help</a></li> </ul> </div> <div class="subNav"> <ul class="navList"> <li><a href="../../../../org/apache/cassandra/cache/RefCountedMemory.html" title="class in 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