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| <div class="subTitle">org.apache.openjpa.util</div> |
| <h2 title="Class ImplHelper" class="title">Class ImplHelper</h2> |
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| <li>org.apache.openjpa.util.ImplHelper</li> |
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| <pre>public class <span class="strong">ImplHelper</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 for OpenJPA back-ends.</div> |
| <dl><dt><span class="strong">Since:</span></dt> |
| <dd>0.3.0</dd> |
| <dt><span class="strong">Author:</span></dt> |
| <dd>Abe White</dd></dl> |
| </li> |
| </ul> |
| </div> |
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| <!-- =========== FIELD SUMMARY =========== --> |
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| <h3>Field Summary</h3> |
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| <caption><span>Fields</span><span class="tabEnd"> </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/util/Map.html?is-external=true" title="class or interface in java.util">Map</a></code></td> |
| <td class="colLast"><code><strong><a href="../../../../org/apache/openjpa/util/ImplHelper.html#_unenhancedInstanceMap">_unenhancedInstanceMap</a></strong></code> </td> |
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| <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/openjpa/util/ImplHelper.html#ImplHelper()">ImplHelper</a></strong>()</code> </td> |
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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"> </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 void</code></td> |
| <td class="colLast"><code><strong><a href="../../../../org/apache/openjpa/util/ImplHelper.html#close(java.lang.Object)">close</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> o)</code> |
| <div class="block">Close the given resource.</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/util/ImplHelper.html#generateFieldValue(org.apache.openjpa.kernel.StoreContext,%20org.apache.openjpa.meta.FieldMetaData)">generateFieldValue</a></strong>(<a href="../../../../org/apache/openjpa/kernel/StoreContext.html" title="interface in org.apache.openjpa.kernel">StoreContext</a> ctx, |
| <a href="../../../../org/apache/openjpa/meta/FieldMetaData.html" title="class in org.apache.openjpa.meta">FieldMetaData</a> fmd)</code> |
| <div class="block">Generate a value for the given metadata, or return null.</div> |
| </td> |
| </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/util/ImplHelper.html#generateIdentityValue(org.apache.openjpa.kernel.StoreContext,%20org.apache.openjpa.meta.ClassMetaData,%20int)">generateIdentityValue</a></strong>(<a href="../../../../org/apache/openjpa/kernel/StoreContext.html" title="interface in org.apache.openjpa.kernel">StoreContext</a> ctx, |
| <a href="../../../../org/apache/openjpa/meta/ClassMetaData.html" title="class in org.apache.openjpa.meta">ClassMetaData</a> meta, |
| int typeCode)</code> |
| <div class="block">Generate a value for the given metadata, or return null.</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/util/ImplHelper.html#getManagedInstance(java.lang.Object)">getManagedInstance</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> o)</code> </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>static <a href="http://download.oracle.com/javase/6/docs/api/java/util/BitSet.html?is-external=true" title="class or interface in java.util">BitSet</a></code></td> |
| <td class="colLast"><code><strong><a href="../../../../org/apache/openjpa/util/ImplHelper.html#getUpdateFields(org.apache.openjpa.kernel.OpenJPAStateManager)">getUpdateFields</a></strong>(<a href="../../../../org/apache/openjpa/kernel/OpenJPAStateManager.html" title="interface in org.apache.openjpa.kernel">OpenJPAStateManager</a> sm)</code> |
| <div class="block">Returns the fields of the state that require an update.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code>static boolean</code></td> |
| <td class="colLast"><code><strong><a href="../../../../org/apache/openjpa/util/ImplHelper.html#isAssignable(java.lang.Class,%20java.lang.Class)">isAssignable</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> from, |
| <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> to)</code> |
| <div class="block">Returns true if the referenced "to" class is assignable to the "from" |
| class.</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>static boolean</code></td> |
| <td class="colLast"><code><strong><a href="../../../../org/apache/openjpa/util/ImplHelper.html#isManageable(java.lang.Object)">isManageable</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> instance)</code> |
| <div class="block">Returns true if the specified instance is manageable.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code>static boolean</code></td> |
| <td class="colLast"><code><strong><a href="../../../../org/apache/openjpa/util/ImplHelper.html#isManagedType(org.apache.openjpa.conf.OpenJPAConfiguration,%20java.lang.Class)">isManagedType</a></strong>(<a href="../../../../org/apache/openjpa/conf/OpenJPAConfiguration.html" title="interface in org.apache.openjpa.conf">OpenJPAConfiguration</a> conf, |
| <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> type)</code> |
| <div class="block">Returns true if the specified class is a type that can be managed by |
| OpenJPA.</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></code></td> |
| <td class="colLast"><code><strong><a href="../../../../org/apache/openjpa/util/ImplHelper.html#loadAll(java.util.Collection,%20org.apache.openjpa.kernel.StoreManager,%20org.apache.openjpa.kernel.PCState,%20int,%20org.apache.openjpa.kernel.FetchConfiguration,%20java.lang.Object)">loadAll</a></strong>(<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> sms, |
| <a href="../../../../org/apache/openjpa/kernel/StoreManager.html" title="interface in org.apache.openjpa.kernel">StoreManager</a> store, |
| <a href="../../../../org/apache/openjpa/kernel/PCState.html" title="class in org.apache.openjpa.kernel">PCState</a> state, |
| int load, |
| <a href="../../../../org/apache/openjpa/kernel/FetchConfiguration.html" title="interface in org.apache.openjpa.kernel">FetchConfiguration</a> fetch, |
| <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> context)</code> |
| <div class="block">Helper for store manager implementations.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code>static void</code></td> |
| <td class="colLast"><code><strong><a href="../../../../org/apache/openjpa/util/ImplHelper.html#registerPersistenceCapable(org.apache.openjpa.enhance.ReflectingPersistenceCapable)">registerPersistenceCapable</a></strong>(<a href="../../../../org/apache/openjpa/enhance/ReflectingPersistenceCapable.html" title="class in org.apache.openjpa.enhance">ReflectingPersistenceCapable</a> pc)</code> </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>static <a href="../../../../org/apache/openjpa/enhance/PersistenceCapable.html" title="interface in org.apache.openjpa.enhance">PersistenceCapable</a></code></td> |
| <td class="colLast"><code><strong><a href="../../../../org/apache/openjpa/util/ImplHelper.html#toPersistenceCapable(java.lang.Object,%20java.lang.Object)">toPersistenceCapable</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> o, |
| <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> ctx)</code> </td> |
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| </table> |
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| <li class="blockList"><a name="methods_inherited_from_class_java.lang.Object"> |
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| </a> |
| <h3>Methods inherited from class 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> |
| </ul> |
| </li> |
| </ul> |
| </li> |
| </ul> |
| </div> |
| <div class="details"> |
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| <li class="blockList"> |
| <!-- ============ FIELD DETAIL =========== --> |
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| <h3>Field Detail</h3> |
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| </a> |
| <ul class="blockListLast"> |
| <li class="blockList"> |
| <h4>_unenhancedInstanceMap</h4> |
| <pre>public static final <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> _unenhancedInstanceMap</pre> |
| </li> |
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| <!-- --> |
| </a> |
| <h3>Constructor Detail</h3> |
| <a name="ImplHelper()"> |
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| <li class="blockList"> |
| <h4>ImplHelper</h4> |
| <pre>public ImplHelper()</pre> |
| </li> |
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| <!-- ============ METHOD DETAIL ========== --> |
| <ul class="blockList"> |
| <li class="blockList"><a name="method_detail"> |
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| </a> |
| <h3>Method Detail</h3> |
| <a name="loadAll(java.util.Collection, org.apache.openjpa.kernel.StoreManager, org.apache.openjpa.kernel.PCState, int, org.apache.openjpa.kernel.FetchConfiguration, java.lang.Object)"> |
| <!-- --> |
| </a> |
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| <h4>loadAll</h4> |
| <pre>public 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> loadAll(<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> sms, |
| <a href="../../../../org/apache/openjpa/kernel/StoreManager.html" title="interface in org.apache.openjpa.kernel">StoreManager</a> store, |
| <a href="../../../../org/apache/openjpa/kernel/PCState.html" title="class in org.apache.openjpa.kernel">PCState</a> state, |
| int load, |
| <a href="../../../../org/apache/openjpa/kernel/FetchConfiguration.html" title="interface in org.apache.openjpa.kernel">FetchConfiguration</a> fetch, |
| <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> context)</pre> |
| <div class="block">Helper for store manager implementations. This method simply delegates |
| to the proper singular method for each state manager.</div> |
| <dl><dt><span class="strong">Since:</span></dt> |
| <dd>0.4.0</dd> |
| <dt><span class="strong">See Also:</span></dt><dd><a href="../../../../org/apache/openjpa/kernel/StoreManager.html#loadAll(java.util.Collection,%20org.apache.openjpa.kernel.PCState,%20int,%20org.apache.openjpa.kernel.FetchConfiguration,%20java.lang.Object)"><code>StoreManager.loadAll(java.util.Collection<org.apache.openjpa.kernel.OpenJPAStateManager>, org.apache.openjpa.kernel.PCState, int, org.apache.openjpa.kernel.FetchConfiguration, java.lang.Object)</code></a></dd></dl> |
| </li> |
| </ul> |
| <a name="generateIdentityValue(org.apache.openjpa.kernel.StoreContext, org.apache.openjpa.meta.ClassMetaData, int)"> |
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| </a> |
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| <h4>generateIdentityValue</h4> |
| <pre>public 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> generateIdentityValue(<a href="../../../../org/apache/openjpa/kernel/StoreContext.html" title="interface in org.apache.openjpa.kernel">StoreContext</a> ctx, |
| <a href="../../../../org/apache/openjpa/meta/ClassMetaData.html" title="class in org.apache.openjpa.meta">ClassMetaData</a> meta, |
| int typeCode)</pre> |
| <div class="block">Generate a value for the given metadata, or return null. Generates |
| values for hte following strategies: <a href="../../../../org/apache/openjpa/meta/ValueStrategies.html#SEQUENCE"><code>ValueStrategies.SEQUENCE</code></a>, |
| <a href="../../../../org/apache/openjpa/meta/ValueStrategies.html#UUID_STRING"><code>ValueStrategies.UUID_STRING</code></a>, <a href="../../../../org/apache/openjpa/meta/ValueStrategies.html#UUID_HEX"><code>ValueStrategies.UUID_HEX</code></a></div> |
| </li> |
| </ul> |
| <a name="generateFieldValue(org.apache.openjpa.kernel.StoreContext, org.apache.openjpa.meta.FieldMetaData)"> |
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| </a> |
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| <h4>generateFieldValue</h4> |
| <pre>public 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> generateFieldValue(<a href="../../../../org/apache/openjpa/kernel/StoreContext.html" title="interface in org.apache.openjpa.kernel">StoreContext</a> ctx, |
| <a href="../../../../org/apache/openjpa/meta/FieldMetaData.html" title="class in org.apache.openjpa.meta">FieldMetaData</a> fmd)</pre> |
| <div class="block">Generate a value for the given metadata, or return null. Generates |
| values for hte following strategies: <a href="../../../../org/apache/openjpa/meta/ValueStrategies.html#SEQUENCE"><code>ValueStrategies.SEQUENCE</code></a>, |
| <a href="../../../../org/apache/openjpa/meta/ValueStrategies.html#UUID_STRING"><code>ValueStrategies.UUID_STRING</code></a>, <a href="../../../../org/apache/openjpa/meta/ValueStrategies.html#UUID_HEX"><code>ValueStrategies.UUID_HEX</code></a></div> |
| </li> |
| </ul> |
| <a name="getUpdateFields(org.apache.openjpa.kernel.OpenJPAStateManager)"> |
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| </a> |
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| <h4>getUpdateFields</h4> |
| <pre>public static <a href="http://download.oracle.com/javase/6/docs/api/java/util/BitSet.html?is-external=true" title="class or interface in java.util">BitSet</a> getUpdateFields(<a href="../../../../org/apache/openjpa/kernel/OpenJPAStateManager.html" title="interface in org.apache.openjpa.kernel">OpenJPAStateManager</a> sm)</pre> |
| <div class="block">Returns the fields of the state that require an update.</div> |
| <dl><dt><span class="strong">Parameters:</span></dt><dd><code>sm</code> - the state to check</dd> |
| <dt><span class="strong">Returns:</span></dt><dd>the BitSet of fields that need update, or null if none</dd></dl> |
| </li> |
| </ul> |
| <a name="close(java.lang.Object)"> |
| <!-- --> |
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| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>close</h4> |
| <pre>public static void close(<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> o)</pre> |
| <div class="block">Close the given resource. The resource can be an extent iterator, |
| query result, large result set relation, or any closeable OpenJPA |
| component.</div> |
| </li> |
| </ul> |
| <a name="isManagedType(org.apache.openjpa.conf.OpenJPAConfiguration, java.lang.Class)"> |
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| <h4>isManagedType</h4> |
| <pre>public static boolean isManagedType(<a href="../../../../org/apache/openjpa/conf/OpenJPAConfiguration.html" title="interface in org.apache.openjpa.conf">OpenJPAConfiguration</a> conf, |
| <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> type)</pre> |
| <div class="block">Returns true if the specified class is a type that can be managed by |
| OpenJPA.</div> |
| <dl><dt><span class="strong">Parameters:</span></dt><dd><code>type</code> - the class to test</dd> |
| <dt><span class="strong">Returns:</span></dt><dd>true if the class is manageable.</dd><dt><span class="strong">Since:</span></dt> |
| <dd>1.0.0</dd></dl> |
| </li> |
| </ul> |
| <a name="isManageable(java.lang.Object)"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
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| <h4>isManageable</h4> |
| <pre>public static boolean isManageable(<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> instance)</pre> |
| <div class="block">Returns true if the specified instance is manageable.</div> |
| <dl><dt><span class="strong">Parameters:</span></dt><dd><code>instance</code> - the object to check</dd> |
| <dt><span class="strong">Returns:</span></dt><dd>true if the instance is a persistent type, false otherwise</dd></dl> |
| </li> |
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| <a name="isAssignable(java.lang.Class, java.lang.Class)"> |
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| </a> |
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| <h4>isAssignable</h4> |
| <pre>public static boolean isAssignable(<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> from, |
| <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> to)</pre> |
| <div class="block">Returns true if the referenced "to" class is assignable to the "from" |
| class. This helper method utilizes a cache to help avoid the overhead |
| of the Class.isAssignableFrom() method.</div> |
| <dl><dt><span class="strong">Parameters:</span></dt><dd><code>from</code> - target class instance to be checked for assignability</dd><dd><code>to</code> - second class instance to be checked for assignability</dd> |
| <dt><span class="strong">Returns:</span></dt><dd>true if the "to" class is assignable to the "from" class</dd></dl> |
| </li> |
| </ul> |
| <a name="toPersistenceCapable(java.lang.Object, java.lang.Object)"> |
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| </a> |
| <ul class="blockList"> |
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| <h4>toPersistenceCapable</h4> |
| <pre>public static <a href="../../../../org/apache/openjpa/enhance/PersistenceCapable.html" title="interface in org.apache.openjpa.enhance">PersistenceCapable</a> toPersistenceCapable(<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> o, |
| <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> ctx)</pre> |
| <dl><dt><span class="strong">Returns:</span></dt><dd>the persistence-capable instance responsible for managing |
| <code>o</code>, or <code>null</code> if <code>o</code> is not manageable.</dd><dt><span class="strong">Since:</span></dt> |
| <dd>1.0.0</dd></dl> |
| </li> |
| </ul> |
| <a name="registerPersistenceCapable(org.apache.openjpa.enhance.ReflectingPersistenceCapable)"> |
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| <h4>registerPersistenceCapable</h4> |
| <pre>public static void registerPersistenceCapable(<a href="../../../../org/apache/openjpa/enhance/ReflectingPersistenceCapable.html" title="class in org.apache.openjpa.enhance">ReflectingPersistenceCapable</a> pc)</pre> |
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| <h4>getManagedInstance</h4> |
| <pre>public 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> getManagedInstance(<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> o)</pre> |
| <dl><dt><span class="strong">Returns:</span></dt><dd>the user-visible representation of <code>o</code>.</dd><dt><span class="strong">Since:</span></dt> |
| <dd>1.0.0</dd></dl> |
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