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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">  <html lang="en"> <head>  <title>ExpiringMap (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/ExpiringMap.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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class="blockList"> <li class="blockList"><a name="nested_class_summary">  </a> <h3>Nested Class Summary</h3> <table class="overviewSummary" border="0" cellpadding="3" cellspacing="0" summary="Nested Class Summary table, listing nested classes, and an explanation"> <caption><span>Nested Classes</span><span class="tabEnd"> </span></caption> <tr> <th class="colFirst" scope="col">Modifier and Type</th> <th class="colLast" scope="col">Class and Description</th> </tr> <tr class="altColor"> <td class="colFirst"><code>static class </code></td> <td class="colLast"><code><strong><a href="../../../../org/apache/cassandra/utils/ExpiringMap.CacheableObject.html" title="class in org.apache.cassandra.utils">ExpiringMap.CacheableObject</a><<a href="../../../../org/apache/cassandra/utils/ExpiringMap.CacheableObject.html" title="type parameter in ExpiringMap.CacheableObject">T</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/utils/ExpiringMap.html#ExpiringMap(long)">ExpiringMap</a></strong>(long defaultExpiration)</code> </td> </tr> <tr class="rowColor"> <td class="colOne"><code><strong><a href="../../../../org/apache/cassandra/utils/ExpiringMap.html#ExpiringMap(long,%20com.google.common.base.Function)">ExpiringMap</a></strong>(long defaultExpiration, com.google.common.base.Function<<a href="../../../../org/apache/cassandra/utils/Pair.html" title="class in org.apache.cassandra.utils">Pair</a><<a href="../../../../org/apache/cassandra/utils/ExpiringMap.html" title="type parameter in ExpiringMap">K</a>,<a href="../../../../org/apache/cassandra/utils/ExpiringMap.CacheableObject.html" title="class in org.apache.cassandra.utils">ExpiringMap.CacheableObject</a><<a href="../../../../org/apache/cassandra/utils/ExpiringMap.html" title="type parameter in ExpiringMap">V</a>>>,?> postExpireHook)</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>boolean</code></td> <td class="colLast"><code><strong><a href="../../../../org/apache/cassandra/utils/ExpiringMap.html#containsKey(K)">containsKey</a></strong>(<a href="../../../../org/apache/cassandra/utils/ExpiringMap.html" title="type parameter in ExpiringMap">K</a> key)</code> </td> </tr> <tr class="rowColor"> <td class="colFirst"><code><a href="../../../../org/apache/cassandra/utils/ExpiringMap.html" title="type parameter in ExpiringMap">V</a></code></td> <td class="colLast"><code><strong><a href="../../../../org/apache/cassandra/utils/ExpiringMap.html#get(K)">get</a></strong>(<a href="../../../../org/apache/cassandra/utils/ExpiringMap.html" title="type parameter in ExpiringMap">K</a> key)</code> </td> </tr> <tr class="altColor"> <td class="colFirst"><code>long</code></td> <td class="colLast"><code><strong><a href="../../../../org/apache/cassandra/utils/ExpiringMap.html#getAge(K)">getAge</a></strong>(<a href="../../../../org/apache/cassandra/utils/ExpiringMap.html" title="type parameter in ExpiringMap">K</a> key)</code> </td> </tr> <tr class="rowColor"> <td class="colFirst"><code>boolean</code></td> <td class="colLast"><code><strong><a href="../../../../org/apache/cassandra/utils/ExpiringMap.html#isEmpty()">isEmpty</a></strong>()</code> </td> </tr> <tr class="altColor"> <td class="colFirst"><code>java.util.Set<<a href="../../../../org/apache/cassandra/utils/ExpiringMap.html" title="type parameter in ExpiringMap">K</a>></code></td> <td class="colLast"><code><strong><a href="../../../../org/apache/cassandra/utils/ExpiringMap.html#keySet()">keySet</a></strong>()</code> </td> </tr> <tr class="rowColor"> <td class="colFirst"><code><a href="../../../../org/apache/cassandra/utils/ExpiringMap.html" title="type parameter in ExpiringMap">V</a></code></td> <td class="colLast"><code><strong><a href="../../../../org/apache/cassandra/utils/ExpiringMap.html#put(K,%20V)">put</a></strong>(<a href="../../../../org/apache/cassandra/utils/ExpiringMap.html" title="type parameter in ExpiringMap">K</a> key, <a href="../../../../org/apache/cassandra/utils/ExpiringMap.html" title="type parameter in ExpiringMap">V</a> value)</code> </td> </tr> <tr class="altColor"> <td class="colFirst"><code><a href="../../../../org/apache/cassandra/utils/ExpiringMap.html" title="type parameter in ExpiringMap">V</a></code></td> <td class="colLast"><code><strong><a href="../../../../org/apache/cassandra/utils/ExpiringMap.html#put(K,%20V,%20long)">put</a></strong>(<a href="../../../../org/apache/cassandra/utils/ExpiringMap.html" title="type parameter in ExpiringMap">K</a> key, <a href="../../../../org/apache/cassandra/utils/ExpiringMap.html" title="type parameter in ExpiringMap">V</a> value, long timeout)</code> </td> </tr> <tr class="rowColor"> <td class="colFirst"><code><a href="../../../../org/apache/cassandra/utils/ExpiringMap.html" title="type parameter in ExpiringMap">V</a></code></td> <td class="colLast"><code><strong><a href="../../../../org/apache/cassandra/utils/ExpiringMap.html#remove(K)">remove</a></strong>(<a href="../../../../org/apache/cassandra/utils/ExpiringMap.html" title="type parameter in ExpiringMap">K</a> key)</code> </td> </tr> <tr class="altColor"> <td class="colFirst"><code>void</code></td> <td class="colLast"><code><strong><a href="../../../../org/apache/cassandra/utils/ExpiringMap.html#reset()">reset</a></strong>()</code> </td> </tr> <tr class="rowColor"> <td class="colFirst"><code>void</code></td> <td class="colLast"><code><strong><a href="../../../../org/apache/cassandra/utils/ExpiringMap.html#shutdownBlocking()">shutdownBlocking</a></strong>()</code> </td> </tr> <tr class="altColor"> <td class="colFirst"><code>int</code></td> <td class="colLast"><code><strong><a href="../../../../org/apache/cassandra/utils/ExpiringMap.html#size()">size</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, equals, finalize, getClass, hashCode, notify, notifyAll, toString, 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="constructor_detail">  </a> <h3>Constructor Detail</h3> <a name="ExpiringMap(long)">  </a> <ul class="blockList"> <li class="blockList"> <h4>ExpiringMap</h4> <pre>public ExpiringMap(long defaultExpiration)</pre> </li> </ul> <a name="ExpiringMap(long, com.google.common.base.Function)">  </a> <ul class="blockListLast"> <li class="blockList"> <h4>ExpiringMap</h4> <pre>public ExpiringMap(long defaultExpiration, com.google.common.base.Function<<a href="../../../../org/apache/cassandra/utils/Pair.html" title="class in org.apache.cassandra.utils">Pair</a><<a href="../../../../org/apache/cassandra/utils/ExpiringMap.html" title="type parameter in ExpiringMap">K</a>,<a href="../../../../org/apache/cassandra/utils/ExpiringMap.CacheableObject.html" title="class in org.apache.cassandra.utils">ExpiringMap.CacheableObject</a><<a href="../../../../org/apache/cassandra/utils/ExpiringMap.html" title="type parameter in ExpiringMap">V</a>>>,?> postExpireHook)</pre> <dl><dt><span class="strong">Parameters:</span></dt><dd><code>defaultExpiration</code> - the TTL for objects in the cache in milliseconds</dd></dl> </li> </ul> </li> </ul>  <ul class="blockList"> <li class="blockList"><a name="method_detail">  </a> <h3>Method Detail</h3> <a name="shutdownBlocking()">  </a> <ul class="blockList"> <li class="blockList"> <h4>shutdownBlocking</h4> <pre>public void shutdownBlocking()</pre> </li> </ul> <a name="reset()">  </a> <ul class="blockList"> <li class="blockList"> <h4>reset</h4> <pre>public void reset()</pre> </li> </ul> <a name="put(java.lang.Object,java.lang.Object)">  </a><a name="put(K, V)">  </a> <ul class="blockList"> <li class="blockList"> <h4>put</h4> <pre>public <a href="../../../../org/apache/cassandra/utils/ExpiringMap.html" title="type parameter in ExpiringMap">V</a> put(<a href="../../../../org/apache/cassandra/utils/ExpiringMap.html" title="type parameter in ExpiringMap">K</a> key, <a href="../../../../org/apache/cassandra/utils/ExpiringMap.html" title="type parameter in ExpiringMap">V</a> value)</pre> </li> </ul> <a name="put(java.lang.Object,java.lang.Object,long)">  </a><a name="put(K, V, long)">  </a> <ul class="blockList"> <li class="blockList"> <h4>put</h4> <pre>public <a href="../../../../org/apache/cassandra/utils/ExpiringMap.html" title="type parameter in ExpiringMap">V</a> put(<a href="../../../../org/apache/cassandra/utils/ExpiringMap.html" title="type parameter in ExpiringMap">K</a> key, <a href="../../../../org/apache/cassandra/utils/ExpiringMap.html" title="type parameter in ExpiringMap">V</a> value, long timeout)</pre> </li> </ul> <a name="get(java.lang.Object)">  </a><a name="get(K)">  </a> <ul class="blockList"> <li class="blockList"> <h4>get</h4> <pre>public <a href="../../../../org/apache/cassandra/utils/ExpiringMap.html" title="type parameter in ExpiringMap">V</a> get(<a href="../../../../org/apache/cassandra/utils/ExpiringMap.html" title="type parameter in ExpiringMap">K</a> key)</pre> </li> </ul> <a name="remove(java.lang.Object)">  </a><a name="remove(K)">  </a> <ul class="blockList"> <li class="blockList"> <h4>remove</h4> <pre>public <a href="../../../../org/apache/cassandra/utils/ExpiringMap.html" title="type parameter in ExpiringMap">V</a> remove(<a href="../../../../org/apache/cassandra/utils/ExpiringMap.html" title="type parameter in ExpiringMap">K</a> key)</pre> </li> </ul> <a name="getAge(java.lang.Object)">  </a><a name="getAge(K)">  </a> <ul class="blockList"> <li class="blockList"> <h4>getAge</h4> <pre>public long getAge(<a href="../../../../org/apache/cassandra/utils/ExpiringMap.html" title="type parameter in ExpiringMap">K</a> key)</pre> <dl><dt><span class="strong">Returns:</span></dt><dd>System.nanoTime() when key was put into the map.</dd></dl> </li> </ul> <a name="size()">  </a> <ul class="blockList"> <li class="blockList"> <h4>size</h4> <pre>public int size()</pre> </li> </ul> <a name="containsKey(java.lang.Object)">  </a><a name="containsKey(K)">  </a> <ul class="blockList"> <li class="blockList"> <h4>containsKey</h4> <pre>public boolean containsKey(<a href="../../../../org/apache/cassandra/utils/ExpiringMap.html" title="type parameter in ExpiringMap">K</a> key)</pre> </li> </ul> <a name="isEmpty()">  </a> <ul class="blockList"> <li class="blockList"> <h4>isEmpty</h4> <pre>public boolean isEmpty()</pre> </li> </ul> <a name="keySet()">  </a> <ul class="blockListLast"> <li class="blockList"> <h4>keySet</h4> <pre>public java.util.Set<<a href="../../../../org/apache/cassandra/utils/ExpiringMap.html" title="type parameter in ExpiringMap">K</a>> keySet()</pre> </li> </ul> </li> </ul> </li> </ul> </div> </div>   <div 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