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| <div class="subTitle">org.apache.openjpa.lib.util.concurrent</div> |
| <h2 title="Interface ConcurrentMap" class="title">Interface ConcurrentMap</h2> |
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| <dt>All Superinterfaces:</dt> |
| <dd><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></dd> |
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| <dt>All Known Implementing Classes:</dt> |
| <dd><a href="../../../../../../org/apache/openjpa/lib/util/concurrent/ConcurrentHashMap.html" title="class in org.apache.openjpa.lib.util.concurrent">ConcurrentHashMap</a>, <a href="../../../../../../org/apache/openjpa/lib/util/concurrent/ConcurrentReferenceHashMap.html" title="class in org.apache.openjpa.lib.util.concurrent">ConcurrentReferenceHashMap</a></dd> |
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| <pre>public interface <span class="strong">ConcurrentMap</span> |
| extends <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></pre> |
| <div class="block">A highly concurrent map.</div> |
| <dl><dt><span class="strong">Author:</span></dt> |
| <dd>Abe White</dd></dl> |
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| <code><a href="http://download.oracle.com/javase/6/docs/api/java/util/Map.Entry.html?is-external=true" title="class or interface in java.util">Map.Entry</a><<a href="http://download.oracle.com/javase/6/docs/api/java/util/Map.Entry.html?is-external=true" title="class or interface in java.util">K</a>,<a href="http://download.oracle.com/javase/6/docs/api/java/util/Map.Entry.html?is-external=true" title="class or interface in java.util">V</a>></code></li> |
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| <td class="colFirst"><code><a href="http://download.oracle.com/javase/6/docs/api/java/util/Iterator.html?is-external=true" title="class or interface in java.util">Iterator</a></code></td> |
| <td class="colLast"><code><strong><a href="../../../../../../org/apache/openjpa/lib/util/concurrent/ConcurrentMap.html#randomEntryIterator()">randomEntryIterator</a></strong>()</code> |
| <div class="block">Iterate over map entries, beginning at an arbitrary |
| (not strictly random) entry.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code><a href="http://download.oracle.com/javase/6/docs/api/java/util/Map.Entry.html?is-external=true" title="class or interface in java.util">Map.Entry</a></code></td> |
| <td class="colLast"><code><strong><a href="../../../../../../org/apache/openjpa/lib/util/concurrent/ConcurrentMap.html#removeRandom()">removeRandom</a></strong>()</code> |
| <div class="block">Remove an arbitrary(not strictly random) entry from the map.</div> |
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| <code><a href="http://download.oracle.com/javase/6/docs/api/java/util/Map.html?is-external=true#clear()" title="class or interface in java.util">clear</a>, <a href="http://download.oracle.com/javase/6/docs/api/java/util/Map.html?is-external=true#containsKey(java.lang.Object)" title="class or interface in java.util">containsKey</a>, <a href="http://download.oracle.com/javase/6/docs/api/java/util/Map.html?is-external=true#containsValue(java.lang.Object)" title="class or interface in java.util">containsValue</a>, <a href="http://download.oracle.com/javase/6/docs/api/java/util/Map.html?is-external=true#entrySet()" title="class or interface in java.util">entrySet</a>, <a href="http://download.oracle.com/javase/6/docs/api/java/util/Map.html?is-external=true#equals(java.lang.Object)" title="class or interface in java.util">equals</a>, <a href="http://download.oracle.com/javase/6/docs/api/java/util/Map.html?is-external=true#get(java.lang.Object)" title="class or interface in java.util">get</a>, <a href="http://download.oracle.com/javase/6/docs/api/java/util/Map.html?is-external=true#hashCode()" title="class or interface in java.util">hashCode</a>, <a href="http://download.oracle.com/javase/6/docs/api/java/util/Map.html?is-external=true#isEmpty()" title="class or interface in java.util">isEmpty</a>, <a href="http://download.oracle.com/javase/6/docs/api/java/util/Map.html?is-external=true#keySet()" title="class or interface in java.util">keySet</a>, <a href="http://download.oracle.com/javase/6/docs/api/java/util/Map.html?is-external=true#put(K,%20V)" title="class or interface in java.util">put</a>, <a href="http://download.oracle.com/javase/6/docs/api/java/util/Map.html?is-external=true#putAll(java.util.Map)" title="class or interface in java.util">putAll</a>, <a href="http://download.oracle.com/javase/6/docs/api/java/util/Map.html?is-external=true#remove(java.lang.Object)" title="class or interface in java.util">remove</a>, <a href="http://download.oracle.com/javase/6/docs/api/java/util/Map.html?is-external=true#size()" title="class or interface in java.util">size</a>, <a href="http://download.oracle.com/javase/6/docs/api/java/util/Map.html?is-external=true#values()" title="class or interface in java.util">values</a></code></li> |
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| <pre><a href="http://download.oracle.com/javase/6/docs/api/java/util/Map.Entry.html?is-external=true" title="class or interface in java.util">Map.Entry</a> removeRandom()</pre> |
| <div class="block">Remove an arbitrary(not strictly random) entry from the map. This |
| allows implementation of concurrent caches with size ceilings.</div> |
| <dl><dt><span class="strong">Returns:</span></dt><dd>the removed entry, or null if map is empty</dd></dl> |
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| <div class="block">Iterate over map entries, beginning at an arbitrary |
| (not strictly random) entry.</div> |
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