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| <h2 title="Interface TraversalHandler" class="title">Interface TraversalHandler</h2> |
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| <dt>All Known Implementing Classes:</dt> |
| <dd><a href="../../../../org/apache/cayenne/dba/db2/DB2QualifierTranslator.html" title="class in org.apache.cayenne.dba.db2">DB2QualifierTranslator</a>, <a href="../../../../org/apache/cayenne/dba/derby/DerbyQualifierTranslator.html" title="class in org.apache.cayenne.dba.derby">DerbyQualifierTranslator</a>, <a href="../../../../org/apache/cayenne/dba/openbase/OpenBaseQualifierTranslator.html" title="class in org.apache.cayenne.dba.openbase">OpenBaseQualifierTranslator</a>, <a href="../../../../org/apache/cayenne/dba/oracle/OracleQualifierTranslator.html" title="class in org.apache.cayenne.dba.oracle">OracleQualifierTranslator</a>, <a href="../../../../org/apache/cayenne/dba/postgres/PostgresQualifierTranslator.html" title="class in org.apache.cayenne.dba.postgres">PostgresQualifierTranslator</a>, <a href="../../../../org/apache/cayenne/access/trans/QualifierTranslator.html" title="class in org.apache.cayenne.access.trans">QualifierTranslator</a>, <a href="../../../../org/apache/cayenne/exp/TraversalHelper.html" title="class in org.apache.cayenne.exp">TraversalHelper</a>, <a href="../../../../org/apache/cayenne/access/trans/TrimmingQualifierTranslator.html" title="class in org.apache.cayenne.access.trans">TrimmingQualifierTranslator</a></dd> |
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| <pre>public interface <span class="strong">TraversalHandler</span></pre> |
| <div class="block">Expression visitor interface. Defines callback methods invoked when |
| walking the expression using <a href="../../../../org/apache/cayenne/exp/Expression.html#traverse(org.apache.cayenne.exp.TraversalHandler)"><code>Expression.traverse(TraversalHandler)</code></a>.</div> |
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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> |
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| <tr class="altColor"> |
| <td class="colFirst"><code>void</code></td> |
| <td class="colLast"><code><strong><a href="../../../../org/apache/cayenne/exp/TraversalHandler.html#endNode(org.apache.cayenne.exp.Expression,%20org.apache.cayenne.exp.Expression)">endNode</a></strong>(<a href="../../../../org/apache/cayenne/exp/Expression.html" title="class in org.apache.cayenne.exp">Expression</a> node, |
| <a href="../../../../org/apache/cayenne/exp/Expression.html" title="class in org.apache.cayenne.exp">Expression</a> parentNode)</code> |
| <div class="block">Called during the traversal after an expression node children |
| processing is finished.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code>void</code></td> |
| <td class="colLast"><code><strong><a href="../../../../org/apache/cayenne/exp/TraversalHandler.html#finishedChild(org.apache.cayenne.exp.Expression,%20int,%20boolean)">finishedChild</a></strong>(<a href="../../../../org/apache/cayenne/exp/Expression.html" title="class in org.apache.cayenne.exp">Expression</a> node, |
| int childIndex, |
| boolean hasMoreChildren)</code> |
| <div class="block">Called during traversal after a child of expression |
| has been visited.</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>void</code></td> |
| <td class="colLast"><code><strong><a href="../../../../org/apache/cayenne/exp/TraversalHandler.html#objectNode(java.lang.Object,%20org.apache.cayenne.exp.Expression)">objectNode</a></strong>(<a href="http://docs.oracle.com/javase/1.5.0/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a> leaf, |
| <a href="../../../../org/apache/cayenne/exp/Expression.html" title="class in org.apache.cayenne.exp">Expression</a> parentNode)</code> |
| <div class="block">Called during the traversal when a leaf non-expression node |
| is encountered.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code>void</code></td> |
| <td class="colLast"><code><strong><a href="../../../../org/apache/cayenne/exp/TraversalHandler.html#startNode(org.apache.cayenne.exp.Expression,%20org.apache.cayenne.exp.Expression)">startNode</a></strong>(<a href="../../../../org/apache/cayenne/exp/Expression.html" title="class in org.apache.cayenne.exp">Expression</a> node, |
| <a href="../../../../org/apache/cayenne/exp/Expression.html" title="class in org.apache.cayenne.exp">Expression</a> parentNode)</code> |
| <div class="block">Called during the traversal before an expression node children |
| processing is started.</div> |
| </td> |
| </tr> |
| </table> |
| </li> |
| </ul> |
| </li> |
| </ul> |
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| <h3>Method Detail</h3> |
| <a name="finishedChild(org.apache.cayenne.exp.Expression, int, boolean)"> |
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| <h4>finishedChild</h4> |
| <pre>void finishedChild(<a href="../../../../org/apache/cayenne/exp/Expression.html" title="class in org.apache.cayenne.exp">Expression</a> node, |
| int childIndex, |
| boolean hasMoreChildren)</pre> |
| <div class="block">Called during traversal after a child of expression |
| has been visited.</div> |
| </li> |
| </ul> |
| <a name="startNode(org.apache.cayenne.exp.Expression, org.apache.cayenne.exp.Expression)"> |
| <!-- --> |
| </a> |
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| <h4>startNode</h4> |
| <pre>void startNode(<a href="../../../../org/apache/cayenne/exp/Expression.html" title="class in org.apache.cayenne.exp">Expression</a> node, |
| <a href="../../../../org/apache/cayenne/exp/Expression.html" title="class in org.apache.cayenne.exp">Expression</a> parentNode)</pre> |
| <div class="block">Called during the traversal before an expression node children |
| processing is started.</div> |
| <dl><dt><span class="strong">Since:</span></dt> |
| <dd>1.1</dd></dl> |
| </li> |
| </ul> |
| <a name="endNode(org.apache.cayenne.exp.Expression, org.apache.cayenne.exp.Expression)"> |
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| <h4>endNode</h4> |
| <pre>void endNode(<a href="../../../../org/apache/cayenne/exp/Expression.html" title="class in org.apache.cayenne.exp">Expression</a> node, |
| <a href="../../../../org/apache/cayenne/exp/Expression.html" title="class in org.apache.cayenne.exp">Expression</a> parentNode)</pre> |
| <div class="block">Called during the traversal after an expression node children |
| processing is finished.</div> |
| <dl><dt><span class="strong">Since:</span></dt> |
| <dd>1.1</dd></dl> |
| </li> |
| </ul> |
| <a name="objectNode(java.lang.Object, org.apache.cayenne.exp.Expression)"> |
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| <h4>objectNode</h4> |
| <pre>void objectNode(<a href="http://docs.oracle.com/javase/1.5.0/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a> leaf, |
| <a href="../../../../org/apache/cayenne/exp/Expression.html" title="class in org.apache.cayenne.exp">Expression</a> parentNode)</pre> |
| <div class="block">Called during the traversal when a leaf non-expression node |
| is encountered.</div> |
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