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 <div class="subTitle">org.apache.openjpa.util</div>
 <h2 title="Class CacheMap" class="title">Class CacheMap</h2>
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 <li>org.apache.openjpa.util.CacheMap</li>
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 <dt>All Implemented Interfaces:</dt>
 <dd><a href="http://docs.oracle.com/javase/8/docs/api/java/util/Map.html?is-external=true" title="class or interface in java.util">Map</a></dd>
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 <br>
 <pre>public class <span class="typeNameLabel">CacheMap</span>
 extends <a href="http://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a>
 implements <a href="http://docs.oracle.com/javase/8/docs/api/java/util/Map.html?is-external=true" title="class or interface in java.util">Map</a></pre>
 <div class="block">Fixed-size map that has ability to pin/unpin entries and move overflow to
  a backing soft map.</div>
 <dl>
 <dt><span class="simpleTagLabel">Author:</span></dt>
 <dd>Patrick Linskey, Abe White</dd>
 </dl>
 </li>
 </ul>
 </div>
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 <h3>Nested classes/interfaces inherited from interface&nbsp;java.util.<a href="http://docs.oracle.com/javase/8/docs/api/java/util/Map.html?is-external=true" title="class or interface in java.util">Map</a></h3>
 <code><a href="http://docs.oracle.com/javase/8/docs/api/java/util/Map.Entry.html?is-external=true" title="class or interface in java.util">Map.Entry</a>&lt;<a href="http://docs.oracle.com/javase/8/docs/api/java/util/Map.Entry.html?is-external=true" title="class or interface in java.util">K</a>,<a href="http://docs.oracle.com/javase/8/docs/api/java/util/Map.Entry.html?is-external=true" title="class or interface in java.util">V</a>&gt;</code></li>
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 <caption><span>Fields</span><span class="tabEnd">&nbsp;</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>protected <a href="../../../../org/apache/openjpa/lib/util/SizedMap.html" title="interface in org.apache.openjpa.lib.util">SizedMap</a></code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/openjpa/util/CacheMap.html#cacheMap">cacheMap</a></span></code>
 <div class="block">The map for non-expired and non-pinned references.</div>
 </td>
 </tr>
 <tr class="rowColor">
 <td class="colFirst"><code>protected <a href="http://docs.oracle.com/javase/8/docs/api/java/util/Map.html?is-external=true" title="class or interface in java.util">Map</a></code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/openjpa/util/CacheMap.html#pinnedMap">pinnedMap</a></span></code>
 <div class="block">The set of objects pinned into the cache.</div>
 </td>
 </tr>
 <tr class="altColor">
 <td class="colFirst"><code>protected <a href="../../../../org/apache/openjpa/lib/util/SizedMap.html" title="interface in org.apache.openjpa.lib.util">SizedMap</a></code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/openjpa/util/CacheMap.html#softMap">softMap</a></span></code>
 <div class="block">The map for expired references.</div>
 </td>
 </tr>
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 <caption><span>Constructors</span><span class="tabEnd">&nbsp;</span></caption>
 <tr>
 <th class="colOne" scope="col">Constructor and Description</th>
 </tr>
 <tr class="altColor">
 <td class="colOne"><code><span class="memberNameLink"><a href="../../../../org/apache/openjpa/util/CacheMap.html#CacheMap--">CacheMap</a></span>()</code>
 <div class="block">Create a non-LRU (and therefore highly concurrent) cache map with a
  size of 1000.</div>
 </td>
 </tr>
 <tr class="rowColor">
 <td class="colOne"><code><span class="memberNameLink"><a href="../../../../org/apache/openjpa/util/CacheMap.html#CacheMap-boolean-">CacheMap</a></span>(boolean&nbsp;lru)</code>
 <div class="block">Create a cache map with a size of 1000.</div>
 </td>
 </tr>
 <tr class="altColor">
 <td class="colOne"><code><span class="memberNameLink"><a href="../../../../org/apache/openjpa/util/CacheMap.html#CacheMap-boolean-int-">CacheMap</a></span>(boolean&nbsp;lru,
         int&nbsp;max)</code>
 <div class="block">Create a cache map with the given properties.</div>
 </td>
 </tr>
 <tr class="rowColor">
 <td class="colOne"><code><span class="memberNameLink"><a href="../../../../org/apache/openjpa/util/CacheMap.html#CacheMap-boolean-int-int-float-">CacheMap</a></span>(boolean&nbsp;lru,
         int&nbsp;max,
         int&nbsp;size,
         float&nbsp;load)</code>
 <div class="block"><span class="deprecatedLabel">Deprecated.</span>&nbsp;
 <div class="block"><span class="deprecationComment">use <a href="../../../../org/apache/openjpa/util/CacheMap.html#CacheMap-boolean-int-int-float-int-"><code>CacheMap(boolean, int, int, float, int)</code></a>
  instead.</span></div>
 </div>
 </td>
 </tr>
 <tr class="altColor">
 <td class="colOne"><code><span class="memberNameLink"><a href="../../../../org/apache/openjpa/util/CacheMap.html#CacheMap-boolean-int-int-float-int-">CacheMap</a></span>(boolean&nbsp;lru,
         int&nbsp;max,
         int&nbsp;size,
         float&nbsp;load,
         int&nbsp;concurrencyLevel)</code>
 <div class="block">Create a cache map with the given properties.</div>
 </td>
 </tr>
 </table>
 </li>
 </ul>
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 <h3>Method Summary</h3>
 <table class="memberSummary" border="0" cellpadding="3" cellspacing="0" summary="Method Summary table, listing methods, and an explanation">
 <caption><span id="t0" class="activeTableTab"><span>All Methods</span><span class="tabEnd">&nbsp;</span></span><span id="t2" class="tableTab"><span><a href="javascript:show(2);">Instance Methods</a></span><span class="tabEnd">&nbsp;</span></span><span id="t4" class="tableTab"><span><a href="javascript:show(8);">Concrete Methods</a></span><span class="tabEnd">&nbsp;</span></span></caption>
 <tr>
 <th class="colFirst" scope="col">Modifier and Type</th>
 <th class="colLast" scope="col">Method and Description</th>
 </tr>
 <tr id="i0" class="altColor">
 <td class="colFirst"><code>protected void</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/openjpa/util/CacheMap.html#cacheMapOverflowRemoved-java.lang.Object-java.lang.Object-">cacheMapOverflowRemoved</a></span>(<a href="http://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a>&nbsp;key,
                        <a href="http://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a>&nbsp;value)</code>
 <div class="block">Called from <a href="../../../../org/apache/openjpa/lib/util/SizedMap.html#overflowRemoved-java.lang.Object-java.lang.Object-"><code>SizedMap.overflowRemoved(java.lang.Object, java.lang.Object)</code></a> in the cache map.</div>
 </td>
 </tr>
 <tr id="i1" class="rowColor">
 <td class="colFirst"><code>void</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/openjpa/util/CacheMap.html#clear--">clear</a></span>()</code>
 <div class="block">Removes pinned objects as well as unpinned ones.</div>
 </td>
 </tr>
 <tr id="i2" class="altColor">
 <td class="colFirst"><code>boolean</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/openjpa/util/CacheMap.html#containsKey-java.lang.Object-">containsKey</a></span>(<a href="http://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a>&nbsp;key)</code>&nbsp;</td>
 </tr>
 <tr id="i3" class="rowColor">
 <td class="colFirst"><code>boolean</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/openjpa/util/CacheMap.html#containsValue-java.lang.Object-">containsValue</a></span>(<a href="http://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a>&nbsp;val)</code>&nbsp;</td>
 </tr>
 <tr id="i4" class="altColor">
 <td class="colFirst"><code>protected void</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/openjpa/util/CacheMap.html#entryAdded-java.lang.Object-java.lang.Object-">entryAdded</a></span>(<a href="http://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a>&nbsp;key,
           <a href="http://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a>&nbsp;value)</code>
 <div class="block">Invoked when an entry is added to the cache.</div>
 </td>
 </tr>
 <tr id="i5" class="rowColor">
 <td class="colFirst"><code>protected void</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/openjpa/util/CacheMap.html#entryRemoved-java.lang.Object-java.lang.Object-boolean-">entryRemoved</a></span>(<a href="http://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a>&nbsp;key,
             <a href="http://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a>&nbsp;value,
             boolean&nbsp;expired)</code>
 <div class="block">Invoked when a key-value pair is evicted from this data
  structure.</div>
 </td>
 </tr>
 <tr id="i6" class="altColor">
 <td class="colFirst"><code><a href="http://docs.oracle.com/javase/8/docs/api/java/util/Set.html?is-external=true" title="class or interface in java.util">Set</a></code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/openjpa/util/CacheMap.html#entrySet--">entrySet</a></span>()</code>&nbsp;</td>
 </tr>
 <tr id="i7" class="rowColor">
 <td class="colFirst"><code><a href="http://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a></code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/openjpa/util/CacheMap.html#get-java.lang.Object-">get</a></span>(<a href="http://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a>&nbsp;key)</code>&nbsp;</td>
 </tr>
 <tr id="i8" class="altColor">
 <td class="colFirst"><code>int</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/openjpa/util/CacheMap.html#getCacheSize--">getCacheSize</a></span>()</code>
 <div class="block">The maximum number of hard references to maintain, or -1 for no limit.</div>
 </td>
 </tr>
 <tr id="i9" class="rowColor">
 <td class="colFirst"><code><a href="http://docs.oracle.com/javase/8/docs/api/java/util/Set.html?is-external=true" title="class or interface in java.util">Set</a></code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/openjpa/util/CacheMap.html#getPinnedKeys--">getPinnedKeys</a></span>()</code>
 <div class="block">The keys pinned into the map.</div>
 </td>
 </tr>
 <tr id="i10" class="altColor">
 <td class="colFirst"><code>int</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/openjpa/util/CacheMap.html#getSoftReferenceSize--">getSoftReferenceSize</a></span>()</code>
 <div class="block">The maximum number of soft references to maintain, or -1 for no limit.</div>
 </td>
 </tr>
 <tr id="i11" class="rowColor">
 <td class="colFirst"><code>boolean</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/openjpa/util/CacheMap.html#isEmpty--">isEmpty</a></span>()</code>&nbsp;</td>
 </tr>
 <tr id="i12" class="altColor">
 <td class="colFirst"><code>boolean</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/openjpa/util/CacheMap.html#isLRU--">isLRU</a></span>()</code>
 <div class="block">Whether this cache map uses LRU eviction.</div>
 </td>
 </tr>
 <tr id="i13" class="rowColor">
 <td class="colFirst"><code><a href="http://docs.oracle.com/javase/8/docs/api/java/util/Set.html?is-external=true" title="class or interface in java.util">Set</a></code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/openjpa/util/CacheMap.html#keySet--">keySet</a></span>()</code>&nbsp;</td>
 </tr>
 <tr id="i14" class="altColor">
 <td class="colFirst"><code>boolean</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/openjpa/util/CacheMap.html#pin-java.lang.Object-">pin</a></span>(<a href="http://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a>&nbsp;key)</code>
 <div class="block">Locks the given key and its value into the map.</div>
 </td>
 </tr>
 <tr id="i15" class="rowColor">
 <td class="colFirst"><code>protected <a href="http://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a></code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/openjpa/util/CacheMap.html#put-java.util.Map-java.lang.Object-java.lang.Object-">put</a></span>(<a href="http://docs.oracle.com/javase/8/docs/api/java/util/Map.html?is-external=true" title="class or interface in java.util">Map</a>&nbsp;map,
    <a href="http://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a>&nbsp;key,
    <a href="http://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a>&nbsp;value)</code>
 <div class="block">Put the given entry into the given map.</div>
 </td>
 </tr>
 <tr id="i16" class="altColor">
 <td class="colFirst"><code><a href="http://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a></code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/openjpa/util/CacheMap.html#put-java.lang.Object-java.lang.Object-">put</a></span>(<a href="http://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a>&nbsp;key,
    <a href="http://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a>&nbsp;value)</code>&nbsp;</td>
 </tr>
 <tr id="i17" class="rowColor">
 <td class="colFirst"><code>void</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/openjpa/util/CacheMap.html#putAll-java.util.Map-">putAll</a></span>(<a href="http://docs.oracle.com/javase/8/docs/api/java/util/Map.html?is-external=true" title="class or interface in java.util">Map</a>&nbsp;map)</code>&nbsp;</td>
 </tr>
 <tr id="i18" class="altColor">
 <td class="colFirst"><code>void</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/openjpa/util/CacheMap.html#putAll-java.util.Map-boolean-">putAll</a></span>(<a href="http://docs.oracle.com/javase/8/docs/api/java/util/Map.html?is-external=true" title="class or interface in java.util">Map</a>&nbsp;map,
       boolean&nbsp;replaceExisting)</code>&nbsp;</td>
 </tr>
 <tr id="i19" class="rowColor">
 <td class="colFirst"><code>void</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/openjpa/util/CacheMap.html#readLock--">readLock</a></span>()</code>
 <div class="block">Acquire read lock.</div>
 </td>
 </tr>
 <tr id="i20" class="altColor">
 <td class="colFirst"><code>void</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/openjpa/util/CacheMap.html#readUnlock--">readUnlock</a></span>()</code>
 <div class="block">Release read lock.</div>
 </td>
 </tr>
 <tr id="i21" class="rowColor">
 <td class="colFirst"><code>protected <a href="http://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a></code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/openjpa/util/CacheMap.html#remove-java.util.Map-java.lang.Object-">remove</a></span>(<a href="http://docs.oracle.com/javase/8/docs/api/java/util/Map.html?is-external=true" title="class or interface in java.util">Map</a>&nbsp;map,
       <a href="http://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a>&nbsp;key)</code>
 <div class="block">Remove the given key from the given map.</div>
 </td>
 </tr>
 <tr id="i22" class="altColor">
 <td class="colFirst"><code><a href="http://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a></code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/openjpa/util/CacheMap.html#remove-java.lang.Object-">remove</a></span>(<a href="http://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a>&nbsp;key)</code>
 <div class="block">If <code>key</code> is pinned into the cache, the pin is
  cleared and the object is removed.</div>
 </td>
 </tr>
 <tr id="i23" class="rowColor">
 <td class="colFirst"><code>void</code></td>
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 <td class="colFirst"><code>int</code></td>
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 <tr id="i30" class="altColor">
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 <td class="colFirst"><code>void</code></td>
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 <dl>
 <dt><span class="simpleTagLabel">Since:</span></dt>
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 <div class="block">Put the given entry into the given map. Allows subclasses to
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