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<div class="subTitle">org.apache.openjpa.datacache</div>
<h2 title="Interface DataCacheManager" class="title">Interface DataCacheManager</h2>
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<dt>All Known Implementing Classes:</dt>
<dd><a href="../../../../org/apache/openjpa/datacache/DataCacheManagerImpl.html" title="class in org.apache.openjpa.datacache">DataCacheManagerImpl</a></dd>
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<pre>public interface <span class="strong">DataCacheManager</span></pre>
<div class="block">Manages the system's data and query caches. You can retrieve the data cache manager from the
<a href="../../../../org/apache/openjpa/conf/OpenJPAConfiguration.html#getDataCacheManagerInstance()"><code>OpenJPAConfiguration.getDataCacheManagerInstance()</code></a>.
<br>
Manages zero or more individual <a href="../../../../org/apache/openjpa/datacache/DataCache.html" title="interface in org.apache.openjpa.datacache"><code>caches</code></a> or partitions. Each individual partition
is identified by a string-based identifier.
Decides eligibility to cache for managed types.</div>
<dl><dt><span class="strong">Author:</span></dt>
<dd>Abe White, Patrick Linskey, Pinaki Poddar</dd></dl>
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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>void</code></td>
<td class="colLast"><code><strong><a href="../../../../org/apache/openjpa/datacache/DataCacheManager.html#close()">close</a></strong>()</code>
<div class="block">Close all caches.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code><a href="../../../../org/apache/openjpa/datacache/ClearableScheduler.html" title="class in org.apache.openjpa.datacache">ClearableScheduler</a></code></td>
<td class="colLast"><code><strong><a href="../../../../org/apache/openjpa/datacache/DataCacheManager.html#getClearableScheduler()">getClearableScheduler</a></strong>()</code>
<div class="block">Return the runnable which schedules evictions.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code><a href="../../../../org/apache/openjpa/datacache/DataCache.html" title="interface in org.apache.openjpa.datacache">DataCache</a></code></td>
<td class="colLast"><code><strong><a href="../../../../org/apache/openjpa/datacache/DataCacheManager.html#getDataCache(java.lang.String)">getDataCache</a></strong>(<a href="http://download.oracle.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;name)</code>
<div class="block">Return the named data cache, or null if it does not exist.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code><a href="../../../../org/apache/openjpa/datacache/DataCache.html" title="interface in org.apache.openjpa.datacache">DataCache</a></code></td>
<td class="colLast"><code><strong><a href="../../../../org/apache/openjpa/datacache/DataCacheManager.html#getDataCache(java.lang.String,%20boolean)">getDataCache</a></strong>(<a href="http://download.oracle.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;name,
boolean&nbsp;create)</code>
<div class="block">Return the named data cache.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code><a href="../../../../org/apache/openjpa/datacache/CacheDistributionPolicy.html" title="interface in org.apache.openjpa.datacache">CacheDistributionPolicy</a></code></td>
<td class="colLast"><code><strong><a href="../../../../org/apache/openjpa/datacache/DataCacheManager.html#getDistributionPolicy()">getDistributionPolicy</a></strong>()</code>
<div class="block">Return the user-specific policy that <em>suggests</em> the cache where a managed entity state is stored.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code><a href="../../../../org/apache/openjpa/datacache/DataCachePCDataGenerator.html" title="class in org.apache.openjpa.datacache">DataCachePCDataGenerator</a></code></td>
<td class="colLast"><code><strong><a href="../../../../org/apache/openjpa/datacache/DataCacheManager.html#getPCDataGenerator()">getPCDataGenerator</a></strong>()</code>
<div class="block">Return the PCData generator if configured.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code><a href="../../../../org/apache/openjpa/datacache/DataCache.html" title="interface in org.apache.openjpa.datacache">DataCache</a></code></td>
<td class="colLast"><code><strong><a href="../../../../org/apache/openjpa/datacache/DataCacheManager.html#getSystemDataCache()">getSystemDataCache</a></strong>()</code>
<div class="block">Return the system-wide data cache, or null if caching is not enabled.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code><a href="../../../../org/apache/openjpa/datacache/QueryCache.html" title="interface in org.apache.openjpa.datacache">QueryCache</a></code></td>
<td class="colLast"><code><strong><a href="../../../../org/apache/openjpa/datacache/DataCacheManager.html#getSystemQueryCache()">getSystemQueryCache</a></strong>()</code>
<div class="block">Return the system query cache, or null if not configured.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><strong><a href="../../../../org/apache/openjpa/datacache/DataCacheManager.html#initialize(org.apache.openjpa.conf.OpenJPAConfiguration,%20org.apache.openjpa.lib.conf.ObjectValue,%20org.apache.openjpa.lib.conf.ObjectValue)">initialize</a></strong>(<a href="../../../../org/apache/openjpa/conf/OpenJPAConfiguration.html" title="interface in org.apache.openjpa.conf">OpenJPAConfiguration</a>&nbsp;conf,
<a href="../../../../org/apache/openjpa/lib/conf/ObjectValue.html" title="class in org.apache.openjpa.lib.conf">ObjectValue</a>&nbsp;dataCache,
<a href="../../../../org/apache/openjpa/lib/conf/ObjectValue.html" title="class in org.apache.openjpa.lib.conf">ObjectValue</a>&nbsp;queryCache)</code>
<div class="block">Initialize the manager, supplying the cache configuration.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code><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>&lt;<a href="http://download.oracle.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>,<a href="http://download.oracle.com/javase/6/docs/api/java/lang/Boolean.html?is-external=true" title="class or interface in java.lang">Boolean</a>&gt;</code></td>
<td class="colLast"><code><strong><a href="../../../../org/apache/openjpa/datacache/DataCacheManager.html#listKnownTypes()">listKnownTypes</a></strong>()</code>
<div class="block">Returns the names of classes that are known to the cache and whether or not they are currently being cached.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code><a href="../../../../org/apache/openjpa/datacache/DataCache.html" title="interface in org.apache.openjpa.datacache">DataCache</a></code></td>
<td class="colLast"><code><strong><a href="../../../../org/apache/openjpa/datacache/DataCacheManager.html#selectCache(org.apache.openjpa.kernel.OpenJPAStateManager)">selectCache</a></strong>(<a href="../../../../org/apache/openjpa/kernel/OpenJPAStateManager.html" title="interface in org.apache.openjpa.kernel">OpenJPAStateManager</a>&nbsp;sm)</code>
<div class="block">Select the cache where the given managed proxy instance should be cached.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><strong><a href="../../../../org/apache/openjpa/datacache/DataCacheManager.html#startCaching(java.lang.String)">startCaching</a></strong>(<a href="http://download.oracle.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;cls)</code>
<div class="block">Start caching the type matching the provided class name.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><strong><a href="../../../../org/apache/openjpa/datacache/DataCacheManager.html#stopCaching(java.lang.String)">stopCaching</a></strong>(<a href="http://download.oracle.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;cls)</code>
<div class="block">Stop caching the type matching the provided class name.</div>
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<h3>Method Detail</h3>
<a name="initialize(org.apache.openjpa.conf.OpenJPAConfiguration, org.apache.openjpa.lib.conf.ObjectValue, org.apache.openjpa.lib.conf.ObjectValue)">
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<h4>initialize</h4>
<pre>void&nbsp;initialize(<a href="../../../../org/apache/openjpa/conf/OpenJPAConfiguration.html" title="interface in org.apache.openjpa.conf">OpenJPAConfiguration</a>&nbsp;conf,
<a href="../../../../org/apache/openjpa/lib/conf/ObjectValue.html" title="class in org.apache.openjpa.lib.conf">ObjectValue</a>&nbsp;dataCache,
<a href="../../../../org/apache/openjpa/lib/conf/ObjectValue.html" title="class in org.apache.openjpa.lib.conf">ObjectValue</a>&nbsp;queryCache)</pre>
<div class="block">Initialize the manager, supplying the cache configuration.</div>
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<a name="getSystemDataCache()">
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<h4>getSystemDataCache</h4>
<pre><a href="../../../../org/apache/openjpa/datacache/DataCache.html" title="interface in org.apache.openjpa.datacache">DataCache</a>&nbsp;getSystemDataCache()</pre>
<div class="block">Return the system-wide data cache, or null if caching is not enabled.</div>
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<a name="getDataCache(java.lang.String)">
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<h4>getDataCache</h4>
<pre><a href="../../../../org/apache/openjpa/datacache/DataCache.html" title="interface in org.apache.openjpa.datacache">DataCache</a>&nbsp;getDataCache(<a href="http://download.oracle.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;name)</pre>
<div class="block">Return the named data cache, or null if it does not exist.</div>
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<a name="getDataCache(java.lang.String, boolean)">
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<h4>getDataCache</h4>
<pre><a href="../../../../org/apache/openjpa/datacache/DataCache.html" title="interface in org.apache.openjpa.datacache">DataCache</a>&nbsp;getDataCache(<a href="http://download.oracle.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;name,
boolean&nbsp;create)</pre>
<div class="block">Return the named data cache. If the given name is null, the default
data cache is returned.</div>
<dl><dt><span class="strong">Parameters:</span></dt><dd><code>create</code> - if true, the cache will be created if it does
not already exist</dd></dl>
</li>
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<a name="getSystemQueryCache()">
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<h4>getSystemQueryCache</h4>
<pre><a href="../../../../org/apache/openjpa/datacache/QueryCache.html" title="interface in org.apache.openjpa.datacache">QueryCache</a>&nbsp;getSystemQueryCache()</pre>
<div class="block">Return the system query cache, or null if not configured.</div>
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<a name="getPCDataGenerator()">
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<h4>getPCDataGenerator</h4>
<pre><a href="../../../../org/apache/openjpa/datacache/DataCachePCDataGenerator.html" title="class in org.apache.openjpa.datacache">DataCachePCDataGenerator</a>&nbsp;getPCDataGenerator()</pre>
<div class="block">Return the PCData generator if configured.</div>
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<a name="getClearableScheduler()">
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<h4>getClearableScheduler</h4>
<pre><a href="../../../../org/apache/openjpa/datacache/ClearableScheduler.html" title="class in org.apache.openjpa.datacache">ClearableScheduler</a>&nbsp;getClearableScheduler()</pre>
<div class="block">Return the runnable which schedules evictions.</div>
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<a name="selectCache(org.apache.openjpa.kernel.OpenJPAStateManager)">
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<h4>selectCache</h4>
<pre><a href="../../../../org/apache/openjpa/datacache/DataCache.html" title="interface in org.apache.openjpa.datacache">DataCache</a>&nbsp;selectCache(<a href="../../../../org/apache/openjpa/kernel/OpenJPAStateManager.html" title="interface in org.apache.openjpa.kernel">OpenJPAStateManager</a>&nbsp;sm)</pre>
<div class="block">Select the cache where the given managed proxy instance should be cached.
This decision <em>may</em> override the cache returned by
<a href="../../../../org/apache/openjpa/datacache/CacheDistributionPolicy.html#selectCache(org.apache.openjpa.kernel.OpenJPAStateManager,%20java.lang.Object)"><code>policy</code></a>
as specified by the user.</div>
<dl><dt><span class="strong">Parameters:</span></dt><dd><code>sm</code> - the managed proxy instance</dd>
<dt><span class="strong">Returns:</span></dt><dd>the cache that will store the state of the given managed instance.</dd><dt><span class="strong">Since:</span></dt>
<dd>2.0.0</dd></dl>
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<a name="getDistributionPolicy()">
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<h4>getDistributionPolicy</h4>
<pre><a href="../../../../org/apache/openjpa/datacache/CacheDistributionPolicy.html" title="interface in org.apache.openjpa.datacache">CacheDistributionPolicy</a>&nbsp;getDistributionPolicy()</pre>
<div class="block">Return the user-specific policy that <em>suggests</em> the cache where a managed entity state is stored.</div>
<dl><dt><span class="strong">Since:</span></dt>
<dd>2.0.0</dd></dl>
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<h4>close</h4>
<pre>void&nbsp;close()</pre>
<div class="block">Close all caches.</div>
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<a name="stopCaching(java.lang.String)">
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<h4>stopCaching</h4>
<pre>void&nbsp;stopCaching(<a href="http://download.oracle.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;cls)</pre>
<div class="block">Stop caching the type matching the provided class name.</div>
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<h4>startCaching</h4>
<pre>void&nbsp;startCaching(<a href="http://download.oracle.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;cls)</pre>
<div class="block">Start caching the type matching the provided class name.</div>
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<h4>listKnownTypes</h4>
<pre><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>&lt;<a href="http://download.oracle.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>,<a href="http://download.oracle.com/javase/6/docs/api/java/lang/Boolean.html?is-external=true" title="class or interface in java.lang">Boolean</a>&gt;&nbsp;listKnownTypes()</pre>
<div class="block">Returns the names of classes that are known to the cache and whether or not they are currently being cached.</div>
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