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| <div class="subTitle">org.apache.openjpa.kernel</div> |
| <h2 title="Interface Extent" class="title">Interface Extent<T></h2> |
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| <dt>All Known Implementing Classes:</dt> |
| <dd><a href="../../../../org/apache/openjpa/kernel/DelegatingExtent.html" title="class in org.apache.openjpa.kernel">DelegatingExtent</a>, <a href="../../../../org/apache/openjpa/kernel/ExtentImpl.html" title="class in org.apache.openjpa.kernel">ExtentImpl</a></dd> |
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| <pre>public interface <span class="strong">Extent<T></span></pre> |
| <div class="block">Representation of all members of a persistent class.</div> |
| <dl><dt><span class="strong">Author:</span></dt> |
| <dd>Abe White, Patrick Linskey</dd></dl> |
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| <h3>Method Summary</h3> |
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| <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>void</code></td> |
| <td class="colLast"><code><strong><a href="../../../../org/apache/openjpa/kernel/Extent.html#closeAll()">closeAll</a></strong>()</code> |
| <div class="block">Close all open iterators.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code><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/kernel/Extent.html#getBroker()">getBroker</a></strong>()</code> |
| <div class="block">The broker that generated the extent.</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code><a href="http://docs.oracle.com/javase/6/docs/api/java/lang/Class.html?is-external=true" title="class or interface in java.lang">Class</a><<a href="../../../../org/apache/openjpa/kernel/Extent.html" title="type parameter in Extent">T</a>></code></td> |
| <td class="colLast"><code><strong><a href="../../../../org/apache/openjpa/kernel/Extent.html#getElementType()">getElementType</a></strong>()</code> |
| <div class="block">The class of extent elements.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code><a href="../../../../org/apache/openjpa/kernel/FetchConfiguration.html" title="interface in org.apache.openjpa.kernel">FetchConfiguration</a></code></td> |
| <td class="colLast"><code><strong><a href="../../../../org/apache/openjpa/kernel/Extent.html#getFetchConfiguration()">getFetchConfiguration</a></strong>()</code> |
| <div class="block">Return the (mutable) fetch configuration for this extent.</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>boolean</code></td> |
| <td class="colLast"><code><strong><a href="../../../../org/apache/openjpa/kernel/Extent.html#getIgnoreChanges()">getIgnoreChanges</a></strong>()</code> |
| <div class="block">Whether this extent will ignore changes made in the current transaction.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code>boolean</code></td> |
| <td class="colLast"><code><strong><a href="../../../../org/apache/openjpa/kernel/Extent.html#hasSubclasses()">hasSubclasses</a></strong>()</code> |
| <div class="block">Whether the extent includes subclasses.</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code><a href="http://docs.oracle.com/javase/6/docs/api/java/util/Iterator.html?is-external=true" title="class or interface in java.util">Iterator</a><<a href="../../../../org/apache/openjpa/kernel/Extent.html" title="type parameter in Extent">T</a>></code></td> |
| <td class="colLast"><code><strong><a href="../../../../org/apache/openjpa/kernel/Extent.html#iterator()">iterator</a></strong>()</code> |
| <div class="block">Return an iterator over the extent members.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code><a href="http://docs.oracle.com/javase/6/docs/api/java/util/List.html?is-external=true" title="class or interface in java.util">List</a><<a href="../../../../org/apache/openjpa/kernel/Extent.html" title="type parameter in Extent">T</a>></code></td> |
| <td class="colLast"><code><strong><a href="../../../../org/apache/openjpa/kernel/Extent.html#list()">list</a></strong>()</code> |
| <div class="block">Returns a list of all objects represented by this extent.</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>void</code></td> |
| <td class="colLast"><code><strong><a href="../../../../org/apache/openjpa/kernel/Extent.html#lock()">lock</a></strong>()</code> |
| <div class="block">Synchronizes on an internal lock.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code>void</code></td> |
| <td class="colLast"><code><strong><a href="../../../../org/apache/openjpa/kernel/Extent.html#setIgnoreChanges(boolean)">setIgnoreChanges</a></strong>(boolean ignoreChanges)</code> |
| <div class="block">Whether this extent will ignore changes made in the current transaction.</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>void</code></td> |
| <td class="colLast"><code><strong><a href="../../../../org/apache/openjpa/kernel/Extent.html#unlock()">unlock</a></strong>()</code> |
| <div class="block">Release the internal lock.</div> |
| </td> |
| </tr> |
| </table> |
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| <h3>Method Detail</h3> |
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| <h4>getFetchConfiguration</h4> |
| <pre><a href="../../../../org/apache/openjpa/kernel/FetchConfiguration.html" title="interface in org.apache.openjpa.kernel">FetchConfiguration</a> getFetchConfiguration()</pre> |
| <div class="block">Return the (mutable) fetch configuration for this extent.</div> |
| </li> |
| </ul> |
| <a name="getIgnoreChanges()"> |
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| <h4>getIgnoreChanges</h4> |
| <pre>boolean getIgnoreChanges()</pre> |
| <div class="block">Whether this extent will ignore changes made in the current transaction.</div> |
| </li> |
| </ul> |
| <a name="setIgnoreChanges(boolean)"> |
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| <h4>setIgnoreChanges</h4> |
| <pre>void setIgnoreChanges(boolean ignoreChanges)</pre> |
| <div class="block">Whether this extent will ignore changes made in the current transaction.</div> |
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| <a name="list()"> |
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| <h4>list</h4> |
| <pre><a href="http://docs.oracle.com/javase/6/docs/api/java/util/List.html?is-external=true" title="class or interface in java.util">List</a><<a href="../../../../org/apache/openjpa/kernel/Extent.html" title="type parameter in Extent">T</a>> list()</pre> |
| <div class="block">Returns a list of all objects represented by this extent. This method |
| creates a <a href="http://docs.oracle.com/javase/6/docs/api/java/util/List.html?is-external=true" title="class or interface in java.util"><code>List</code></a> by traversing the entire iterator returned by a |
| call to <a href="../../../../org/apache/openjpa/kernel/Extent.html#iterator()"><code>iterator()</code></a>. This means that <a href="http://docs.oracle.com/javase/6/docs/api/java/util/Collection.html?is-external=true#size()" title="class or interface in java.util"><code>Collection.size()</code></a> will |
| work correctly, but if the extent represents a large data set, this |
| method may be quite slow and may consume quite a bit of memory.</div> |
| </li> |
| </ul> |
| <a name="iterator()"> |
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| <h4>iterator</h4> |
| <pre><a href="http://docs.oracle.com/javase/6/docs/api/java/util/Iterator.html?is-external=true" title="class or interface in java.util">Iterator</a><<a href="../../../../org/apache/openjpa/kernel/Extent.html" title="type parameter in Extent">T</a>> iterator()</pre> |
| <div class="block">Return an iterator over the extent members.</div> |
| </li> |
| </ul> |
| <a name="getBroker()"> |
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| <h4>getBroker</h4> |
| <pre><a href="../../../../org/apache/openjpa/kernel/Broker.html" title="interface in org.apache.openjpa.kernel">Broker</a> getBroker()</pre> |
| <div class="block">The broker that generated the extent.</div> |
| </li> |
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| <pre><a href="http://docs.oracle.com/javase/6/docs/api/java/lang/Class.html?is-external=true" title="class or interface in java.lang">Class</a><<a href="../../../../org/apache/openjpa/kernel/Extent.html" title="type parameter in Extent">T</a>> getElementType()</pre> |
| <div class="block">The class of extent elements.</div> |
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| <pre>boolean hasSubclasses()</pre> |
| <div class="block">Whether the extent includes subclasses.</div> |
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| <pre>void closeAll()</pre> |
| <div class="block">Close all open iterators.</div> |
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| <h4>lock</h4> |
| <pre>void lock()</pre> |
| <div class="block">Synchronizes on an internal lock.</div> |
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| <pre>void unlock()</pre> |
| <div class="block">Release the internal lock.</div> |
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