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| <div class="subTitle">org.apache.openjpa.jdbc.kernel</div> |
| <h2 title="Interface JDBCLockManager" class="title">Interface JDBCLockManager</h2> |
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| <dt>All Superinterfaces:</dt> |
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| <dt>All Known Implementing Classes:</dt> |
| <dd><a href="../../../../../org/apache/openjpa/jdbc/kernel/MixedLockManager.html" title="class in org.apache.openjpa.jdbc.kernel">MixedLockManager</a>, <a href="../../../../../org/apache/openjpa/jdbc/kernel/PessimisticLockManager.html" title="class in org.apache.openjpa.jdbc.kernel">PessimisticLockManager</a></dd> |
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| <pre>public interface <span class="strong">JDBCLockManager</span> |
| extends <a href="../../../../../org/apache/openjpa/kernel/LockManager.html" title="interface in org.apache.openjpa.kernel">LockManager</a></pre> |
| <div class="block">Extension of the <a href="../../../../../org/apache/openjpa/kernel/LockManager.html" title="interface in org.apache.openjpa.kernel"><code>LockManager</code></a> interface with methods for |
| datastore locking during the select and load process. Implementors of |
| this interface can also take advantage of the fact that in the |
| <a href="../../../../../org/apache/openjpa/kernel/LockManager.html#lock(org.apache.openjpa.kernel.OpenJPAStateManager,%20int,%20int,%20java.lang.Object)"><code>LockManager.lock(org.apache.openjpa.kernel.OpenJPAStateManager, int, int, java.lang.Object)</code></a> and <a href="../../../../../org/apache/openjpa/kernel/LockManager.html#lockAll(java.util.Collection,%20int,%20int,%20java.lang.Object)"><code>LockManager.lockAll(java.util.Collection, int, int, java.lang.Object)</code></a> methods, the |
| given <code>conn</code> parameter, if any, will be an instance of |
| <a href="../../../../../org/apache/openjpa/jdbc/kernel/ConnectionInfo.html" title="class in org.apache.openjpa.jdbc.kernel"><code>ConnectionInfo</code></a>.</div> |
| <dl><dt><span class="strong">Author:</span></dt> |
| <dd>Abe White</dd></dl> |
| </li> |
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| <h3>Fields inherited from interface org.apache.openjpa.kernel.<a href="../../../../../org/apache/openjpa/kernel/LockLevels.html" title="interface in org.apache.openjpa.kernel">LockLevels</a></h3> |
| <code><a href="../../../../../org/apache/openjpa/kernel/LockLevels.html#LOCK_NONE">LOCK_NONE</a>, <a href="../../../../../org/apache/openjpa/kernel/LockLevels.html#LOCK_READ">LOCK_READ</a>, <a href="../../../../../org/apache/openjpa/kernel/LockLevels.html#LOCK_WRITE">LOCK_WRITE</a></code></li> |
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| <caption><span>Methods</span><span class="tabEnd"> </span></caption> |
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| <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/jdbc/kernel/JDBCLockManager.html#loadedForUpdate(org.apache.openjpa.kernel.OpenJPAStateManager)">loadedForUpdate</a></strong>(<a href="../../../../../org/apache/openjpa/kernel/OpenJPAStateManager.html" title="interface in org.apache.openjpa.kernel">OpenJPAStateManager</a> sm)</code> |
| <div class="block">Notification that the given instance was loaded via a result set |
| produced by a FOR UPDATE select.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code>boolean</code></td> |
| <td class="colLast"><code><strong><a href="../../../../../org/apache/openjpa/jdbc/kernel/JDBCLockManager.html#selectForUpdate(org.apache.openjpa.jdbc.sql.Select,%20int)">selectForUpdate</a></strong>(<a href="../../../../../org/apache/openjpa/jdbc/sql/Select.html" title="interface in org.apache.openjpa.jdbc.sql">Select</a> sel, |
| int lockLevel)</code> |
| <div class="block">Return whether to issue the given select FOR UPDATE, depending on |
| the capabilities of the dictionary and the fetch configuration.</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>boolean</code></td> |
| <td class="colLast"><code><strong><a href="../../../../../org/apache/openjpa/jdbc/kernel/JDBCLockManager.html#skipRelationFieldLock()">skipRelationFieldLock</a></strong>()</code> |
| <div class="block">Return true if locking is not desired for relation fields.</div> |
| </td> |
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| <h3>Methods inherited from interface org.apache.openjpa.kernel.<a href="../../../../../org/apache/openjpa/kernel/LockManager.html" title="interface in org.apache.openjpa.kernel">LockManager</a></h3> |
| <code><a href="../../../../../org/apache/openjpa/kernel/LockManager.html#beginTransaction()">beginTransaction</a>, <a href="../../../../../org/apache/openjpa/kernel/LockManager.html#close()">close</a>, <a href="../../../../../org/apache/openjpa/kernel/LockManager.html#endTransaction()">endTransaction</a>, <a href="../../../../../org/apache/openjpa/kernel/LockManager.html#getLockLevel(org.apache.openjpa.kernel.OpenJPAStateManager)">getLockLevel</a>, <a href="../../../../../org/apache/openjpa/kernel/LockManager.html#lock(org.apache.openjpa.kernel.OpenJPAStateManager,%20int,%20int,%20java.lang.Object)">lock</a>, <a href="../../../../../org/apache/openjpa/kernel/LockManager.html#lockAll(java.util.Collection,%20int,%20int,%20java.lang.Object)">lockAll</a>, <a href="../../../../../org/apache/openjpa/kernel/LockManager.html#refreshLock(org.apache.openjpa.kernel.OpenJPAStateManager,%20int,%20int,%20java.lang.Object)">refreshLock</a>, <a href="../../../../../org/apache/openjpa/kernel/LockManager.html#release(org.apache.openjpa.kernel.OpenJPAStateManager)">release</a>, <a href="../../../../../org/apache/openjpa/kernel/LockManager.html#setContext(org.apache.openjpa.kernel.StoreContext)">setContext</a></code></li> |
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| <a name="selectForUpdate(org.apache.openjpa.jdbc.sql.Select, int)"> |
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| <h4>selectForUpdate</h4> |
| <pre>boolean selectForUpdate(<a href="../../../../../org/apache/openjpa/jdbc/sql/Select.html" title="interface in org.apache.openjpa.jdbc.sql">Select</a> sel, |
| int lockLevel)</pre> |
| <div class="block">Return whether to issue the given select FOR UPDATE, depending on |
| the capabilities of the dictionary and the fetch configuration.</div> |
| </li> |
| </ul> |
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| <h4>loadedForUpdate</h4> |
| <pre>void loadedForUpdate(<a href="../../../../../org/apache/openjpa/kernel/OpenJPAStateManager.html" title="interface in org.apache.openjpa.kernel">OpenJPAStateManager</a> sm)</pre> |
| <div class="block">Notification that the given instance was loaded via a result set |
| produced by a FOR UPDATE select.</div> |
| </li> |
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| <h4>skipRelationFieldLock</h4> |
| <pre>boolean skipRelationFieldLock()</pre> |
| <div class="block">Return true if locking is not desired for relation fields.</div> |
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