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<div class="subTitle">org.apache.openjpa.persistence</div>
<h2 title="Class JPAFacadeHelper" class="title">Class JPAFacadeHelper</h2>
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<li>org.apache.openjpa.persistence.JPAFacadeHelper</li>
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<pre>public class <span class="strong">JPAFacadeHelper</span>
extends <a href="http://download.oracle.com/javase/6/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a></pre>
<div class="block">Helper class for switching between OpenJPA's JPA facade and the underlying
Broker kernel.</div>
<dl><dt><span class="strong">Since:</span></dt>
<dd>1.0.0</dd></dl>
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</ul>
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<!-- =========== FIELD SUMMARY =========== -->
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<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">&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>static <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></code></td>
<td class="colLast"><code><strong><a href="../../../../org/apache/openjpa/persistence/JPAFacadeHelper.html#EM_KEY">EM_KEY</a></strong></code>&nbsp;</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>static <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></code></td>
<td class="colLast"><code><strong><a href="../../../../org/apache/openjpa/persistence/JPAFacadeHelper.html#EMF_KEY">EMF_KEY</a></strong></code>&nbsp;</td>
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<th class="colOne" scope="col">Constructor and Description</th>
</tr>
<tr class="altColor">
<td class="colOne"><code><strong><a href="../../../../org/apache/openjpa/persistence/JPAFacadeHelper.html#JPAFacadeHelper()">JPAFacadeHelper</a></strong>()</code>&nbsp;</td>
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<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>static <a href="http://download.oracle.com/javase/6/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a></code></td>
<td class="colLast"><code><strong><a href="../../../../org/apache/openjpa/persistence/JPAFacadeHelper.html#fromOpenJPAObjectId(java.lang.Object)">fromOpenJPAObjectId</a></strong>(<a href="http://download.oracle.com/javase/6/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a>&nbsp;oid)</code>
<div class="block">Translate from a OpenJPA identity object to a Persistence one.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>static <a href="http://download.oracle.com/javase/6/docs/api/java/lang/Class.html?is-external=true" title="class or interface in java.lang">Class</a></code></td>
<td class="colLast"><code><strong><a href="../../../../org/apache/openjpa/persistence/JPAFacadeHelper.html#fromOpenJPAObjectIdClass(java.lang.Class)">fromOpenJPAObjectIdClass</a></strong>(<a href="http://download.oracle.com/javase/6/docs/api/java/lang/Class.html?is-external=true" title="class or interface in java.lang">Class</a>&nbsp;oidClass)</code>
<div class="block">Translate from a OpenJPA identity class to a native one.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>static <a href="../../../../org/apache/openjpa/meta/ClassMetaData.html" title="class in org.apache.openjpa.meta">ClassMetaData</a></code></td>
<td class="colLast"><code><strong><a href="../../../../org/apache/openjpa/persistence/JPAFacadeHelper.html#getMetaData(javax.persistence.EntityManager,%20java.lang.Class)">getMetaData</a></strong>(<a href="http://download.oracle.com/javaee/6/api/javax/persistence/EntityManager.html?is-external=true" title="class or interface in javax.persistence">EntityManager</a>&nbsp;em,
<a href="http://download.oracle.com/javase/6/docs/api/java/lang/Class.html?is-external=true" title="class or interface in java.lang">Class</a>&nbsp;cls)</code>
<div class="block">Returns the <a href="../../../../org/apache/openjpa/meta/ClassMetaData.html" title="class in org.apache.openjpa.meta"><code>ClassMetaData</code></a> associated
with the persistent type <code>cls</code>.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>static <a href="../../../../org/apache/openjpa/meta/ClassMetaData.html" title="class in org.apache.openjpa.meta">ClassMetaData</a></code></td>
<td class="colLast"><code><strong><a href="../../../../org/apache/openjpa/persistence/JPAFacadeHelper.html#getMetaData(javax.persistence.EntityManagerFactory,%20java.lang.Class)">getMetaData</a></strong>(<a href="http://download.oracle.com/javaee/6/api/javax/persistence/EntityManagerFactory.html?is-external=true" title="class or interface in javax.persistence">EntityManagerFactory</a>&nbsp;emf,
<a href="http://download.oracle.com/javase/6/docs/api/java/lang/Class.html?is-external=true" title="class or interface in java.lang">Class</a>&nbsp;cls)</code>
<div class="block">Returns the <a href="../../../../org/apache/openjpa/meta/ClassMetaData.html" title="class in org.apache.openjpa.meta"><code>ClassMetaData</code></a> associated
with the persistent type <code>cls</code>.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>static <a href="../../../../org/apache/openjpa/meta/ClassMetaData.html" title="class in org.apache.openjpa.meta">ClassMetaData</a></code></td>
<td class="colLast"><code><strong><a href="../../../../org/apache/openjpa/persistence/JPAFacadeHelper.html#getMetaData(java.lang.Object)">getMetaData</a></strong>(<a href="http://download.oracle.com/javase/6/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a>&nbsp;o)</code>
<div class="block">Returns the <a href="../../../../org/apache/openjpa/meta/ClassMetaData.html" title="class in org.apache.openjpa.meta"><code>ClassMetaData</code></a> associated with
the persistent object <code>o</code>.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>static <a href="../../../../org/apache/openjpa/kernel/Broker.html" title="interface in org.apache.openjpa.kernel">Broker</a></code></td>
<td class="colLast"><code><strong><a href="../../../../org/apache/openjpa/persistence/JPAFacadeHelper.html#toBroker(javax.persistence.EntityManager)">toBroker</a></strong>(<a href="http://download.oracle.com/javaee/6/api/javax/persistence/EntityManager.html?is-external=true" title="class or interface in javax.persistence">EntityManager</a>&nbsp;em)</code>
<div class="block">Return the underlying broker for the given entity manager facade.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>static <a href="../../../../org/apache/openjpa/kernel/BrokerFactory.html" title="interface in org.apache.openjpa.kernel">BrokerFactory</a></code></td>
<td class="colLast"><code><strong><a href="../../../../org/apache/openjpa/persistence/JPAFacadeHelper.html#toBrokerFactory(javax.persistence.EntityManagerFactory)">toBrokerFactory</a></strong>(<a href="http://download.oracle.com/javaee/6/api/javax/persistence/EntityManagerFactory.html?is-external=true" title="class or interface in javax.persistence">EntityManagerFactory</a>&nbsp;emf)</code>
<div class="block">Return the underlying broker factory for the given persistence manager
factory facade.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>static <a href="../../../../org/apache/openjpa/persistence/OpenJPAEntityManager.html" title="interface in org.apache.openjpa.persistence">OpenJPAEntityManager</a></code></td>
<td class="colLast"><code><strong><a href="../../../../org/apache/openjpa/persistence/JPAFacadeHelper.html#toEntityManager(org.apache.openjpa.kernel.Broker)">toEntityManager</a></strong>(<a href="../../../../org/apache/openjpa/kernel/Broker.html" title="interface in org.apache.openjpa.kernel">Broker</a>&nbsp;broker)</code>
<div class="block">Return a persistence manager facade to the given broker retaining
previously associated persistence context type.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>static <a href="../../../../org/apache/openjpa/persistence/OpenJPAEntityManagerFactory.html" title="interface in org.apache.openjpa.persistence">OpenJPAEntityManagerFactory</a></code></td>
<td class="colLast"><code><strong><a href="../../../../org/apache/openjpa/persistence/JPAFacadeHelper.html#toEntityManagerFactory(org.apache.openjpa.kernel.BrokerFactory)">toEntityManagerFactory</a></strong>(<a href="../../../../org/apache/openjpa/kernel/BrokerFactory.html" title="interface in org.apache.openjpa.kernel">BrokerFactory</a>&nbsp;factory)</code>&nbsp;</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>static <a href="http://download.oracle.com/javase/6/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a></code></td>
<td class="colLast"><code><strong><a href="../../../../org/apache/openjpa/persistence/JPAFacadeHelper.html#toOpenJPAObjectId(org.apache.openjpa.meta.ClassMetaData,%20java.lang.Object)">toOpenJPAObjectId</a></strong>(<a href="../../../../org/apache/openjpa/meta/ClassMetaData.html" title="class in org.apache.openjpa.meta">ClassMetaData</a>&nbsp;meta,
<a href="http://download.oracle.com/javase/6/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a>&nbsp;oid)</code>
<div class="block">Translate from a Persistence identity object to a OpenJPA one.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>static <a href="http://download.oracle.com/javase/6/docs/api/java/util/Collection.html?is-external=true" title="class or interface in java.util">Collection</a>&lt;<a href="http://download.oracle.com/javase/6/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a>&gt;</code></td>
<td class="colLast"><code><strong><a href="../../../../org/apache/openjpa/persistence/JPAFacadeHelper.html#toOpenJPAObjectIds(org.apache.openjpa.meta.ClassMetaData,%20java.util.Collection)">toOpenJPAObjectIds</a></strong>(<a href="../../../../org/apache/openjpa/meta/ClassMetaData.html" title="class in org.apache.openjpa.meta">ClassMetaData</a>&nbsp;meta,
<a href="http://download.oracle.com/javase/6/docs/api/java/util/Collection.html?is-external=true" title="class or interface in java.util">Collection</a>&lt;<a href="http://download.oracle.com/javase/6/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a>&gt;&nbsp;oids)</code>
<div class="block">Return a collection of OpenJPA oids for the given native oid collection.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>static <a href="http://download.oracle.com/javase/6/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a>[]</code></td>
<td class="colLast"><code><strong><a href="../../../../org/apache/openjpa/persistence/JPAFacadeHelper.html#toOpenJPAObjectIds(org.apache.openjpa.meta.ClassMetaData,%20java.lang.Object...)">toOpenJPAObjectIds</a></strong>(<a href="../../../../org/apache/openjpa/meta/ClassMetaData.html" title="class in org.apache.openjpa.meta">ClassMetaData</a>&nbsp;meta,
<a href="http://download.oracle.com/javase/6/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a>...&nbsp;oids)</code>
<div class="block">Return an array of OpenJPA oids for the given native oid array.</div>
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<h3>Methods inherited from class&nbsp;java.lang.<a href="http://download.oracle.com/javase/6/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a></h3>
<code><a href="http://download.oracle.com/javase/6/docs/api/java/lang/Object.html?is-external=true#clone()" title="class or interface in java.lang">clone</a>, <a href="http://download.oracle.com/javase/6/docs/api/java/lang/Object.html?is-external=true#equals(java.lang.Object)" title="class or interface in java.lang">equals</a>, <a href="http://download.oracle.com/javase/6/docs/api/java/lang/Object.html?is-external=true#finalize()" title="class or interface in java.lang">finalize</a>, <a href="http://download.oracle.com/javase/6/docs/api/java/lang/Object.html?is-external=true#getClass()" title="class or interface in java.lang">getClass</a>, <a href="http://download.oracle.com/javase/6/docs/api/java/lang/Object.html?is-external=true#hashCode()" title="class or interface in java.lang">hashCode</a>, <a href="http://download.oracle.com/javase/6/docs/api/java/lang/Object.html?is-external=true#notify()" title="class or interface in java.lang">notify</a>, <a href="http://download.oracle.com/javase/6/docs/api/java/lang/Object.html?is-external=true#notifyAll()" title="class or interface in java.lang">notifyAll</a>, <a href="http://download.oracle.com/javase/6/docs/api/java/lang/Object.html?is-external=true#toString()" title="class or interface in java.lang">toString</a>, <a href="http://download.oracle.com/javase/6/docs/api/java/lang/Object.html?is-external=true#wait()" title="class or interface in java.lang">wait</a>, <a href="http://download.oracle.com/javase/6/docs/api/java/lang/Object.html?is-external=true#wait(long)" title="class or interface in java.lang">wait</a>, <a href="http://download.oracle.com/javase/6/docs/api/java/lang/Object.html?is-external=true#wait(long,%20int)" title="class or interface in java.lang">wait</a></code></li>
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<pre>public static final&nbsp;<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> EM_KEY</pre>
<dl><dt><span class="strong">See Also:</span></dt><dd><a href="../../../../constant-values.html#org.apache.openjpa.persistence.JPAFacadeHelper.EM_KEY">Constant Field Values</a></dd></dl>
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<pre>public static final&nbsp;<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> EMF_KEY</pre>
<dl><dt><span class="strong">See Also:</span></dt><dd><a href="../../../../constant-values.html#org.apache.openjpa.persistence.JPAFacadeHelper.EMF_KEY">Constant Field Values</a></dd></dl>
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<h4>JPAFacadeHelper</h4>
<pre>public&nbsp;JPAFacadeHelper()</pre>
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<a name="toEntityManagerFactory(org.apache.openjpa.kernel.BrokerFactory)">
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<h4>toEntityManagerFactory</h4>
<pre>public static&nbsp;<a href="../../../../org/apache/openjpa/persistence/OpenJPAEntityManagerFactory.html" title="interface in org.apache.openjpa.persistence">OpenJPAEntityManagerFactory</a>&nbsp;toEntityManagerFactory(<a href="../../../../org/apache/openjpa/kernel/BrokerFactory.html" title="interface in org.apache.openjpa.kernel">BrokerFactory</a>&nbsp;factory)</pre>
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<a name="toBrokerFactory(javax.persistence.EntityManagerFactory)">
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<h4>toBrokerFactory</h4>
<pre>public static&nbsp;<a href="../../../../org/apache/openjpa/kernel/BrokerFactory.html" title="interface in org.apache.openjpa.kernel">BrokerFactory</a>&nbsp;toBrokerFactory(<a href="http://download.oracle.com/javaee/6/api/javax/persistence/EntityManagerFactory.html?is-external=true" title="class or interface in javax.persistence">EntityManagerFactory</a>&nbsp;emf)</pre>
<div class="block">Return the underlying broker factory for the given persistence manager
factory facade.</div>
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<a name="toEntityManager(org.apache.openjpa.kernel.Broker)">
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<h4>toEntityManager</h4>
<pre>public static&nbsp;<a href="../../../../org/apache/openjpa/persistence/OpenJPAEntityManager.html" title="interface in org.apache.openjpa.persistence">OpenJPAEntityManager</a>&nbsp;toEntityManager(<a href="../../../../org/apache/openjpa/kernel/Broker.html" title="interface in org.apache.openjpa.kernel">Broker</a>&nbsp;broker)</pre>
<div class="block">Return a persistence manager facade to the given broker retaining
previously associated persistence context type.</div>
</li>
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<a name="toBroker(javax.persistence.EntityManager)">
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<h4>toBroker</h4>
<pre>public static&nbsp;<a href="../../../../org/apache/openjpa/kernel/Broker.html" title="interface in org.apache.openjpa.kernel">Broker</a>&nbsp;toBroker(<a href="http://download.oracle.com/javaee/6/api/javax/persistence/EntityManager.html?is-external=true" title="class or interface in javax.persistence">EntityManager</a>&nbsp;em)</pre>
<div class="block">Return the underlying broker for the given entity manager facade.</div>
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<a name="getMetaData(java.lang.Object)">
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<h4>getMetaData</h4>
<pre>public static&nbsp;<a href="../../../../org/apache/openjpa/meta/ClassMetaData.html" title="class in org.apache.openjpa.meta">ClassMetaData</a>&nbsp;getMetaData(<a href="http://download.oracle.com/javase/6/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a>&nbsp;o)</pre>
<div class="block">Returns the <a href="../../../../org/apache/openjpa/meta/ClassMetaData.html" title="class in org.apache.openjpa.meta"><code>ClassMetaData</code></a> associated with
the persistent object <code>o</code>.</div>
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<a name="getMetaData(javax.persistence.EntityManager, java.lang.Class)">
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<h4>getMetaData</h4>
<pre>public static&nbsp;<a href="../../../../org/apache/openjpa/meta/ClassMetaData.html" title="class in org.apache.openjpa.meta">ClassMetaData</a>&nbsp;getMetaData(<a href="http://download.oracle.com/javaee/6/api/javax/persistence/EntityManager.html?is-external=true" title="class or interface in javax.persistence">EntityManager</a>&nbsp;em,
<a href="http://download.oracle.com/javase/6/docs/api/java/lang/Class.html?is-external=true" title="class or interface in java.lang">Class</a>&nbsp;cls)</pre>
<div class="block">Returns the <a href="../../../../org/apache/openjpa/meta/ClassMetaData.html" title="class in org.apache.openjpa.meta"><code>ClassMetaData</code></a> associated
with the persistent type <code>cls</code>.</div>
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<h4>getMetaData</h4>
<pre>public static&nbsp;<a href="../../../../org/apache/openjpa/meta/ClassMetaData.html" title="class in org.apache.openjpa.meta">ClassMetaData</a>&nbsp;getMetaData(<a href="http://download.oracle.com/javaee/6/api/javax/persistence/EntityManagerFactory.html?is-external=true" title="class or interface in javax.persistence">EntityManagerFactory</a>&nbsp;emf,
<a href="http://download.oracle.com/javase/6/docs/api/java/lang/Class.html?is-external=true" title="class or interface in java.lang">Class</a>&nbsp;cls)</pre>
<div class="block">Returns the <a href="../../../../org/apache/openjpa/meta/ClassMetaData.html" title="class in org.apache.openjpa.meta"><code>ClassMetaData</code></a> associated
with the persistent type <code>cls</code>.</div>
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<h4>fromOpenJPAObjectId</h4>
<pre>public static&nbsp;<a href="http://download.oracle.com/javase/6/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a>&nbsp;fromOpenJPAObjectId(<a href="http://download.oracle.com/javase/6/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a>&nbsp;oid)</pre>
<div class="block">Translate from a OpenJPA identity object to a Persistence one.</div>
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<a name="toOpenJPAObjectId(org.apache.openjpa.meta.ClassMetaData, java.lang.Object)">
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<h4>toOpenJPAObjectId</h4>
<pre>public static&nbsp;<a href="http://download.oracle.com/javase/6/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a>&nbsp;toOpenJPAObjectId(<a href="../../../../org/apache/openjpa/meta/ClassMetaData.html" title="class in org.apache.openjpa.meta">ClassMetaData</a>&nbsp;meta,
<a href="http://download.oracle.com/javase/6/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a>&nbsp;oid)</pre>
<div class="block">Translate from a Persistence identity object to a OpenJPA one. If the provided oid isn't of the expected type
a UserException will be thrown.</div>
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<h4>toOpenJPAObjectIds</h4>
<pre>public static&nbsp;<a href="http://download.oracle.com/javase/6/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a>[]&nbsp;toOpenJPAObjectIds(<a href="../../../../org/apache/openjpa/meta/ClassMetaData.html" title="class in org.apache.openjpa.meta">ClassMetaData</a>&nbsp;meta,
<a href="http://download.oracle.com/javase/6/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a>...&nbsp;oids)</pre>
<div class="block">Return an array of OpenJPA oids for the given native oid array.</div>
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<a name="toOpenJPAObjectIds(org.apache.openjpa.meta.ClassMetaData, java.util.Collection)">
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<h4>toOpenJPAObjectIds</h4>
<pre>public static&nbsp;<a href="http://download.oracle.com/javase/6/docs/api/java/util/Collection.html?is-external=true" title="class or interface in java.util">Collection</a>&lt;<a href="http://download.oracle.com/javase/6/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a>&gt;&nbsp;toOpenJPAObjectIds(<a href="../../../../org/apache/openjpa/meta/ClassMetaData.html" title="class in org.apache.openjpa.meta">ClassMetaData</a>&nbsp;meta,
<a href="http://download.oracle.com/javase/6/docs/api/java/util/Collection.html?is-external=true" title="class or interface in java.util">Collection</a>&lt;<a href="http://download.oracle.com/javase/6/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a>&gt;&nbsp;oids)</pre>
<div class="block">Return a collection of OpenJPA oids for the given native oid collection.</div>
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<h4>fromOpenJPAObjectIdClass</h4>
<pre>public static&nbsp;<a href="http://download.oracle.com/javase/6/docs/api/java/lang/Class.html?is-external=true" title="class or interface in java.lang">Class</a>&nbsp;fromOpenJPAObjectIdClass(<a href="http://download.oracle.com/javase/6/docs/api/java/lang/Class.html?is-external=true" title="class or interface in java.lang">Class</a>&nbsp;oidClass)</pre>
<div class="block">Translate from a OpenJPA identity class to a native one.</div>
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