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<div class="subTitle">org.apache.openjpa.kernel</div>
<h2 title="Interface OpCallbacks" class="title">Interface OpCallbacks</h2>
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<pre>public interface <span class="strong">OpCallbacks</span></pre>
<div class="block">Allows facades to control the particulars of persistence operations
through callbacks.</div>
<dl><dt><span class="strong">Author:</span></dt>
<dd>Abe White</dd></dl>
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<caption><span>Fields</span><span class="tabEnd">&nbsp;</span></caption>
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<th class="colFirst" scope="col">Modifier and Type</th>
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<td class="colFirst"><code>static int</code></td>
<td class="colLast"><code><strong><a href="../../../../org/apache/openjpa/kernel/OpCallbacks.html#ACT_CASCADE">ACT_CASCADE</a></strong></code>&nbsp;</td>
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<tr class="rowColor">
<td class="colFirst"><code>static int</code></td>
<td class="colLast"><code><strong><a href="../../../../org/apache/openjpa/kernel/OpCallbacks.html#ACT_NONE">ACT_NONE</a></strong></code>&nbsp;</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>static int</code></td>
<td class="colLast"><code><strong><a href="../../../../org/apache/openjpa/kernel/OpCallbacks.html#ACT_RUN">ACT_RUN</a></strong></code>&nbsp;</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>static int</code></td>
<td class="colLast"><code><strong><a href="../../../../org/apache/openjpa/kernel/OpCallbacks.html#OP_ATTACH">OP_ATTACH</a></strong></code>&nbsp;</td>
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<tr class="altColor">
<td class="colFirst"><code>static int</code></td>
<td class="colLast"><code><strong><a href="../../../../org/apache/openjpa/kernel/OpCallbacks.html#OP_DELETE">OP_DELETE</a></strong></code>&nbsp;</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>static int</code></td>
<td class="colLast"><code><strong><a href="../../../../org/apache/openjpa/kernel/OpCallbacks.html#OP_DETACH">OP_DETACH</a></strong></code>&nbsp;</td>
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<tr class="altColor">
<td class="colFirst"><code>static int</code></td>
<td class="colLast"><code><strong><a href="../../../../org/apache/openjpa/kernel/OpCallbacks.html#OP_EVICT">OP_EVICT</a></strong></code>&nbsp;</td>
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<tr class="rowColor">
<td class="colFirst"><code>static int</code></td>
<td class="colLast"><code><strong><a href="../../../../org/apache/openjpa/kernel/OpCallbacks.html#OP_LOCK">OP_LOCK</a></strong></code>&nbsp;</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>static int</code></td>
<td class="colLast"><code><strong><a href="../../../../org/apache/openjpa/kernel/OpCallbacks.html#OP_NONTRANSACTIONAL">OP_NONTRANSACTIONAL</a></strong></code>&nbsp;</td>
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<td class="colFirst"><code>static int</code></td>
<td class="colLast"><code><strong><a href="../../../../org/apache/openjpa/kernel/OpCallbacks.html#OP_PERSIST">OP_PERSIST</a></strong></code>&nbsp;</td>
</tr>
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<td class="colFirst"><code>static int</code></td>
<td class="colLast"><code><strong><a href="../../../../org/apache/openjpa/kernel/OpCallbacks.html#OP_REFRESH">OP_REFRESH</a></strong></code>&nbsp;</td>
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<td class="colFirst"><code>static int</code></td>
<td class="colLast"><code><strong><a href="../../../../org/apache/openjpa/kernel/OpCallbacks.html#OP_RELEASE">OP_RELEASE</a></strong></code>&nbsp;</td>
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<td class="colFirst"><code>static int</code></td>
<td class="colLast"><code><strong><a href="../../../../org/apache/openjpa/kernel/OpCallbacks.html#OP_RETRIEVE">OP_RETRIEVE</a></strong></code>&nbsp;</td>
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<td class="colFirst"><code>static int</code></td>
<td class="colLast"><code><strong><a href="../../../../org/apache/openjpa/kernel/OpCallbacks.html#OP_TRANSACTIONAL">OP_TRANSACTIONAL</a></strong></code>&nbsp;</td>
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<td class="colFirst"><code>int</code></td>
<td class="colLast"><code><strong><a href="../../../../org/apache/openjpa/kernel/OpCallbacks.html#processArgument(int,%20java.lang.Object,%20org.apache.openjpa.kernel.OpenJPAStateManager)">processArgument</a></strong>(int&nbsp;op,
<a href="http://docs.oracle.com/javase/6/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a>&nbsp;arg,
<a href="../../../../org/apache/openjpa/kernel/OpenJPAStateManager.html" title="interface in org.apache.openjpa.kernel">OpenJPAStateManager</a>&nbsp;sm)</code>
<div class="block">Process operation argument.</div>
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<h4>OP_PERSIST</h4>
<pre>static final&nbsp;int OP_PERSIST</pre>
<dl><dt><span class="strong">See Also:</span></dt><dd><a href="../../../../constant-values.html#org.apache.openjpa.kernel.OpCallbacks.OP_PERSIST">Constant Field Values</a></dd></dl>
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<h4>OP_DELETE</h4>
<pre>static final&nbsp;int OP_DELETE</pre>
<dl><dt><span class="strong">See Also:</span></dt><dd><a href="../../../../constant-values.html#org.apache.openjpa.kernel.OpCallbacks.OP_DELETE">Constant Field Values</a></dd></dl>
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<h4>OP_REFRESH</h4>
<pre>static final&nbsp;int OP_REFRESH</pre>
<dl><dt><span class="strong">See Also:</span></dt><dd><a href="../../../../constant-values.html#org.apache.openjpa.kernel.OpCallbacks.OP_REFRESH">Constant Field Values</a></dd></dl>
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<h4>OP_RETRIEVE</h4>
<pre>static final&nbsp;int OP_RETRIEVE</pre>
<dl><dt><span class="strong">See Also:</span></dt><dd><a href="../../../../constant-values.html#org.apache.openjpa.kernel.OpCallbacks.OP_RETRIEVE">Constant Field Values</a></dd></dl>
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<h4>OP_RELEASE</h4>
<pre>static final&nbsp;int OP_RELEASE</pre>
<dl><dt><span class="strong">See Also:</span></dt><dd><a href="../../../../constant-values.html#org.apache.openjpa.kernel.OpCallbacks.OP_RELEASE">Constant Field Values</a></dd></dl>
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<h4>OP_EVICT</h4>
<pre>static final&nbsp;int OP_EVICT</pre>
<dl><dt><span class="strong">See Also:</span></dt><dd><a href="../../../../constant-values.html#org.apache.openjpa.kernel.OpCallbacks.OP_EVICT">Constant Field Values</a></dd></dl>
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<h4>OP_ATTACH</h4>
<pre>static final&nbsp;int OP_ATTACH</pre>
<dl><dt><span class="strong">See Also:</span></dt><dd><a href="../../../../constant-values.html#org.apache.openjpa.kernel.OpCallbacks.OP_ATTACH">Constant Field Values</a></dd></dl>
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<h4>OP_DETACH</h4>
<pre>static final&nbsp;int OP_DETACH</pre>
<dl><dt><span class="strong">See Also:</span></dt><dd><a href="../../../../constant-values.html#org.apache.openjpa.kernel.OpCallbacks.OP_DETACH">Constant Field Values</a></dd></dl>
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<h4>OP_NONTRANSACTIONAL</h4>
<pre>static final&nbsp;int OP_NONTRANSACTIONAL</pre>
<dl><dt><span class="strong">See Also:</span></dt><dd><a href="../../../../constant-values.html#org.apache.openjpa.kernel.OpCallbacks.OP_NONTRANSACTIONAL">Constant Field Values</a></dd></dl>
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<h4>OP_TRANSACTIONAL</h4>
<pre>static final&nbsp;int OP_TRANSACTIONAL</pre>
<dl><dt><span class="strong">See Also:</span></dt><dd><a href="../../../../constant-values.html#org.apache.openjpa.kernel.OpCallbacks.OP_TRANSACTIONAL">Constant Field Values</a></dd></dl>
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<h4>OP_LOCK</h4>
<pre>static final&nbsp;int OP_LOCK</pre>
<dl><dt><span class="strong">See Also:</span></dt><dd><a href="../../../../constant-values.html#org.apache.openjpa.kernel.OpCallbacks.OP_LOCK">Constant Field Values</a></dd></dl>
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<h4>ACT_NONE</h4>
<pre>static final&nbsp;int ACT_NONE</pre>
<dl><dt><span class="strong">See Also:</span></dt><dd><a href="../../../../constant-values.html#org.apache.openjpa.kernel.OpCallbacks.ACT_NONE">Constant Field Values</a></dd></dl>
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<h4>ACT_CASCADE</h4>
<pre>static final&nbsp;int ACT_CASCADE</pre>
<dl><dt><span class="strong">See Also:</span></dt><dd><a href="../../../../constant-values.html#org.apache.openjpa.kernel.OpCallbacks.ACT_CASCADE">Constant Field Values</a></dd></dl>
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<pre>static final&nbsp;int ACT_RUN</pre>
<dl><dt><span class="strong">See Also:</span></dt><dd><a href="../../../../constant-values.html#org.apache.openjpa.kernel.OpCallbacks.ACT_RUN">Constant Field Values</a></dd></dl>
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<h4>processArgument</h4>
<pre>int&nbsp;processArgument(int&nbsp;op,
<a href="http://docs.oracle.com/javase/6/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a>&nbsp;arg,
<a href="../../../../org/apache/openjpa/kernel/OpenJPAStateManager.html" title="interface in org.apache.openjpa.kernel">OpenJPAStateManager</a>&nbsp;sm)</pre>
<div class="block">Process operation argument. Throw proper
<a href="../../../../org/apache/openjpa/util/OpenJPAException.html" title="class in org.apache.openjpa.util"><code>OpenJPAException</code></a> for illegal value.</div>
<dl><dt><span class="strong">Parameters:</span></dt><dd><code>op</code> - the operation constant</dd><dd><code>arg</code> - the object passed to the operation</dd><dd><code>sm</code> - the argument's state manager, or null if none</dd>
<dt><span class="strong">Returns:</span></dt><dd>the action to take on the argument</dd></dl>
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