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<div class="subTitle">org.apache.openjpa.kernel.jpql</div>
<h2 title="Interface Node" class="title">Interface Node</h2>
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<dd><a href="../../../../../org/apache/openjpa/kernel/jpql/JPQLExpressionBuilder.JPQLNode.html" title="class in org.apache.openjpa.kernel.jpql">JPQLExpressionBuilder.JPQLNode</a>, <a href="../../../../../org/apache/openjpa/kernel/jpql/SimpleNode.html" title="class in org.apache.openjpa.kernel.jpql">SimpleNode</a></dd>
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<pre>public interface <span class="strong">Node</span></pre>
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<h3>Method Summary</h3>
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<th class="colFirst" scope="col">Modifier and Type</th>
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<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><strong><a href="../../../../../org/apache/openjpa/kernel/jpql/Node.html#jjtAddChild(org.apache.openjpa.kernel.jpql.Node,%20int)">jjtAddChild</a></strong>(<a href="../../../../../org/apache/openjpa/kernel/jpql/Node.html" title="interface in org.apache.openjpa.kernel.jpql">Node</a>&nbsp;n,
int&nbsp;i)</code>
<div class="block">This method tells the node to add its argument to the node's
list of children.</div>
</td>
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<tr class="rowColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><strong><a href="../../../../../org/apache/openjpa/kernel/jpql/Node.html#jjtClose()">jjtClose</a></strong>()</code>
<div class="block">This method is called after all the child nodes have been
added.</div>
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<tr class="altColor">
<td class="colFirst"><code><a href="../../../../../org/apache/openjpa/kernel/jpql/Node.html" title="interface in org.apache.openjpa.kernel.jpql">Node</a></code></td>
<td class="colLast"><code><strong><a href="../../../../../org/apache/openjpa/kernel/jpql/Node.html#jjtGetChild(int)">jjtGetChild</a></strong>(int&nbsp;i)</code>
<div class="block">This method returns a child node.</div>
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<td class="colFirst"><code>int</code></td>
<td class="colLast"><code><strong><a href="../../../../../org/apache/openjpa/kernel/jpql/Node.html#jjtGetNumChildren()">jjtGetNumChildren</a></strong>()</code>
<div class="block">Return the number of children the node has.</div>
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<tr class="altColor">
<td class="colFirst"><code><a href="../../../../../org/apache/openjpa/kernel/jpql/Node.html" title="interface in org.apache.openjpa.kernel.jpql">Node</a></code></td>
<td class="colLast"><code><strong><a href="../../../../../org/apache/openjpa/kernel/jpql/Node.html#jjtGetParent()">jjtGetParent</a></strong>()</code>&nbsp;</td>
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<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><strong><a href="../../../../../org/apache/openjpa/kernel/jpql/Node.html#jjtOpen()">jjtOpen</a></strong>()</code>
<div class="block">This method is called after the node has been made the current
node.</div>
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<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><strong><a href="../../../../../org/apache/openjpa/kernel/jpql/Node.html#jjtSetParent(org.apache.openjpa.kernel.jpql.Node)">jjtSetParent</a></strong>(<a href="../../../../../org/apache/openjpa/kernel/jpql/Node.html" title="interface in org.apache.openjpa.kernel.jpql">Node</a>&nbsp;n)</code>
<div class="block">This pair of methods are used to inform the node of its
parent.</div>
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<h4>jjtOpen</h4>
<pre>void&nbsp;jjtOpen()</pre>
<div class="block">This method is called after the node has been made the current
node. It indicates that child nodes can now be added to it.</div>
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<h4>jjtClose</h4>
<pre>void&nbsp;jjtClose()</pre>
<div class="block">This method is called after all the child nodes have been
added.</div>
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<h4>jjtSetParent</h4>
<pre>void&nbsp;jjtSetParent(<a href="../../../../../org/apache/openjpa/kernel/jpql/Node.html" title="interface in org.apache.openjpa.kernel.jpql">Node</a>&nbsp;n)</pre>
<div class="block">This pair of methods are used to inform the node of its
parent.</div>
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<h4>jjtGetParent</h4>
<pre><a href="../../../../../org/apache/openjpa/kernel/jpql/Node.html" title="interface in org.apache.openjpa.kernel.jpql">Node</a>&nbsp;jjtGetParent()</pre>
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<h4>jjtAddChild</h4>
<pre>void&nbsp;jjtAddChild(<a href="../../../../../org/apache/openjpa/kernel/jpql/Node.html" title="interface in org.apache.openjpa.kernel.jpql">Node</a>&nbsp;n,
int&nbsp;i)</pre>
<div class="block">This method tells the node to add its argument to the node's
list of children.</div>
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<h4>jjtGetChild</h4>
<pre><a href="../../../../../org/apache/openjpa/kernel/jpql/Node.html" title="interface in org.apache.openjpa.kernel.jpql">Node</a>&nbsp;jjtGetChild(int&nbsp;i)</pre>
<div class="block">This method returns a child node. The children are numbered
from zero, left to right.</div>
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<h4>jjtGetNumChildren</h4>
<pre>int&nbsp;jjtGetNumChildren()</pre>
<div class="block">Return the number of children the node has.</div>
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