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<h2 title="接口 RexVisitor" class="title">接口 RexVisitor&lt;R&gt;</h2>
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<dt><span class="paramLabel">类型参数:</span></dt>
<dd><code>R</code> - Return type</dd>
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<dl>
<dt>所有已知实现类:</dt>
<dd><a href="../../../../org/apache/calcite/rel/rules/ProjectCorrelateTransposeRule.RexFieldAccessReplacer.html" title="org.apache.calcite.rel.rules中的类">ProjectCorrelateTransposeRule.RexFieldAccessReplacer</a>, <a href="../../../../org/apache/calcite/rel/rules/ReduceDecimalsRule.DecimalShuttle.html" title="org.apache.calcite.rel.rules中的类">ReduceDecimalsRule.DecimalShuttle</a>, <a href="../../../../org/apache/calcite/rel/rules/ReduceExpressionsRule.CaseShuttle.html" title="org.apache.calcite.rel.rules中的类">ReduceExpressionsRule.CaseShuttle</a>, <a href="../../../../org/apache/calcite/rel/rules/ReduceExpressionsRule.ReducibleExprLocator.html" title="org.apache.calcite.rel.rules中的类">ReduceExpressionsRule.ReducibleExprLocator</a>, <a href="../../../../org/apache/calcite/rel/rules/ReduceExpressionsRule.RexReplacer.html" title="org.apache.calcite.rel.rules中的类">ReduceExpressionsRule.RexReplacer</a>, <a href="../../../../org/apache/calcite/plan/RelOptUtil.InputFinder.html" title="org.apache.calcite.plan中的类">RelOptUtil.InputFinder</a>, <a href="../../../../org/apache/calcite/plan/RelOptUtil.InputReferencedVisitor.html" title="org.apache.calcite.plan中的类">RelOptUtil.InputReferencedVisitor</a>, <a href="../../../../org/apache/calcite/plan/RelOptUtil.RexInputConverter.html" title="org.apache.calcite.plan中的类">RelOptUtil.RexInputConverter</a>, <a href="../../../../org/apache/calcite/plan/RelOptUtil.VariableUsedVisitor.html" title="org.apache.calcite.plan中的类">RelOptUtil.VariableUsedVisitor</a>, <a href="../../../../org/apache/calcite/rex/RexChecker.html" title="org.apache.calcite.rex中的类">RexChecker</a>, <a href="../../../../org/apache/calcite/rex/RexInterpreter.html" title="org.apache.calcite.rex中的类">RexInterpreter</a>, <a href="../../../../org/apache/calcite/rex/RexPermutationShuttle.html" title="org.apache.calcite.rex中的类">RexPermutationShuttle</a>, <a href="../../../../org/apache/calcite/rex/RexPermuteInputsShuttle.html" title="org.apache.calcite.rex中的类">RexPermuteInputsShuttle</a>, <a href="../../../../org/apache/calcite/rex/RexShuttle.html" title="org.apache.calcite.rex中的类">RexShuttle</a>, <a href="../../../../org/apache/calcite/rex/RexUtil.ExprSimplifier.html" title="org.apache.calcite.rex中的类">RexUtil.ExprSimplifier</a>, <a href="../../../../org/apache/calcite/rex/RexUtil.FieldAccessFinder.html" title="org.apache.calcite.rex中的类">RexUtil.FieldAccessFinder</a>, <a href="../../../../org/apache/calcite/rex/RexUtil.FixNullabilityShuttle.html" title="org.apache.calcite.rex中的类">RexUtil.FixNullabilityShuttle</a>, <a href="../../../../org/apache/calcite/rex/RexUtil.SubQueryFinder.html" title="org.apache.calcite.rex中的类">RexUtil.SubQueryFinder</a>, <a href="../../../../org/apache/calcite/rex/RexVisitorImpl.html" title="org.apache.calcite.rex中的类">RexVisitorImpl</a></dd>
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<pre>public interface <span class="typeNameLabel">RexVisitor&lt;R&gt;</span></pre>
<div class="block">Visitor pattern for traversing a tree of <a href="../../../../org/apache/calcite/rex/RexNode.html" title="org.apache.calcite.rex中的类"><code>RexNode</code></a> objects.</div>
<dl>
<dt><span class="seeLabel">另请参阅:</span></dt>
<dd><a href="../../../../org/apache/calcite/util/Glossary.html#VISITOR_PATTERN"><code>Glossary.VISITOR_PATTERN</code></a>,
<a href="../../../../org/apache/calcite/rex/RexShuttle.html" title="org.apache.calcite.rex中的类"><code>RexShuttle</code></a>,
<a href="../../../../org/apache/calcite/rex/RexVisitorImpl.html" title="org.apache.calcite.rex中的类"><code>RexVisitorImpl</code></a></dd>
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<h3>方法概要</h3>
<table class="memberSummary" border="0" cellpadding="3" cellspacing="0" summary="方法概要表, 列表方法和解释">
<caption><span id="t0" class="activeTableTab"><span>所有方法</span><span class="tabEnd">&nbsp;</span></span><span id="t2" class="tableTab"><span><a href="javascript:show(2);">实例方法</a></span><span class="tabEnd">&nbsp;</span></span><span id="t3" class="tableTab"><span><a href="javascript:show(4);">抽象方法</a></span><span class="tabEnd">&nbsp;</span></span></caption>
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<th class="colFirst" scope="col">限定符和类型</th>
<th class="colLast" scope="col">方法和说明</th>
</tr>
<tr id="i0" class="altColor">
<td class="colFirst"><code><a href="../../../../org/apache/calcite/rex/RexVisitor.html" title="RexVisitor中的类型参数">R</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/calcite/rex/RexVisitor.html#visitCall-org.apache.calcite.rex.RexCall-">visitCall</a></span>(<a href="../../../../org/apache/calcite/rex/RexCall.html" title="org.apache.calcite.rex中的类">RexCall</a>&nbsp;call)</code>&nbsp;</td>
</tr>
<tr id="i1" class="rowColor">
<td class="colFirst"><code><a href="../../../../org/apache/calcite/rex/RexVisitor.html" title="RexVisitor中的类型参数">R</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/calcite/rex/RexVisitor.html#visitCorrelVariable-org.apache.calcite.rex.RexCorrelVariable-">visitCorrelVariable</a></span>(<a href="../../../../org/apache/calcite/rex/RexCorrelVariable.html" title="org.apache.calcite.rex中的类">RexCorrelVariable</a>&nbsp;correlVariable)</code>&nbsp;</td>
</tr>
<tr id="i2" class="altColor">
<td class="colFirst"><code><a href="../../../../org/apache/calcite/rex/RexVisitor.html" title="RexVisitor中的类型参数">R</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/calcite/rex/RexVisitor.html#visitDynamicParam-org.apache.calcite.rex.RexDynamicParam-">visitDynamicParam</a></span>(<a href="../../../../org/apache/calcite/rex/RexDynamicParam.html" title="org.apache.calcite.rex中的类">RexDynamicParam</a>&nbsp;dynamicParam)</code>&nbsp;</td>
</tr>
<tr id="i3" class="rowColor">
<td class="colFirst"><code><a href="../../../../org/apache/calcite/rex/RexVisitor.html" title="RexVisitor中的类型参数">R</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/calcite/rex/RexVisitor.html#visitFieldAccess-org.apache.calcite.rex.RexFieldAccess-">visitFieldAccess</a></span>(<a href="../../../../org/apache/calcite/rex/RexFieldAccess.html" title="org.apache.calcite.rex中的类">RexFieldAccess</a>&nbsp;fieldAccess)</code>&nbsp;</td>
</tr>
<tr id="i4" class="altColor">
<td class="colFirst"><code><a href="../../../../org/apache/calcite/rex/RexVisitor.html" title="RexVisitor中的类型参数">R</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/calcite/rex/RexVisitor.html#visitInputRef-org.apache.calcite.rex.RexInputRef-">visitInputRef</a></span>(<a href="../../../../org/apache/calcite/rex/RexInputRef.html" title="org.apache.calcite.rex中的类">RexInputRef</a>&nbsp;inputRef)</code>&nbsp;</td>
</tr>
<tr id="i5" class="rowColor">
<td class="colFirst"><code><a href="../../../../org/apache/calcite/rex/RexVisitor.html" title="RexVisitor中的类型参数">R</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/calcite/rex/RexVisitor.html#visitLiteral-org.apache.calcite.rex.RexLiteral-">visitLiteral</a></span>(<a href="../../../../org/apache/calcite/rex/RexLiteral.html" title="org.apache.calcite.rex中的类">RexLiteral</a>&nbsp;literal)</code>&nbsp;</td>
</tr>
<tr id="i6" class="altColor">
<td class="colFirst"><code><a href="../../../../org/apache/calcite/rex/RexVisitor.html" title="RexVisitor中的类型参数">R</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/calcite/rex/RexVisitor.html#visitLocalRef-org.apache.calcite.rex.RexLocalRef-">visitLocalRef</a></span>(<a href="../../../../org/apache/calcite/rex/RexLocalRef.html" title="org.apache.calcite.rex中的类">RexLocalRef</a>&nbsp;localRef)</code>&nbsp;</td>
</tr>
<tr id="i7" class="rowColor">
<td class="colFirst"><code><a href="../../../../org/apache/calcite/rex/RexVisitor.html" title="RexVisitor中的类型参数">R</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/calcite/rex/RexVisitor.html#visitOver-org.apache.calcite.rex.RexOver-">visitOver</a></span>(<a href="../../../../org/apache/calcite/rex/RexOver.html" title="org.apache.calcite.rex中的类">RexOver</a>&nbsp;over)</code>&nbsp;</td>
</tr>
<tr id="i8" class="altColor">
<td class="colFirst"><code><a href="../../../../org/apache/calcite/rex/RexVisitor.html" title="RexVisitor中的类型参数">R</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/calcite/rex/RexVisitor.html#visitPatternFieldRef-org.apache.calcite.rex.RexPatternFieldRef-">visitPatternFieldRef</a></span>(<a href="../../../../org/apache/calcite/rex/RexPatternFieldRef.html" title="org.apache.calcite.rex中的类">RexPatternFieldRef</a>&nbsp;fieldRef)</code>&nbsp;</td>
</tr>
<tr id="i9" class="rowColor">
<td class="colFirst"><code><a href="../../../../org/apache/calcite/rex/RexVisitor.html" title="RexVisitor中的类型参数">R</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/calcite/rex/RexVisitor.html#visitRangeRef-org.apache.calcite.rex.RexRangeRef-">visitRangeRef</a></span>(<a href="../../../../org/apache/calcite/rex/RexRangeRef.html" title="org.apache.calcite.rex中的类">RexRangeRef</a>&nbsp;rangeRef)</code>&nbsp;</td>
</tr>
<tr id="i10" class="altColor">
<td class="colFirst"><code><a href="../../../../org/apache/calcite/rex/RexVisitor.html" title="RexVisitor中的类型参数">R</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/calcite/rex/RexVisitor.html#visitSubQuery-org.apache.calcite.rex.RexSubQuery-">visitSubQuery</a></span>(<a href="../../../../org/apache/calcite/rex/RexSubQuery.html" title="org.apache.calcite.rex中的类">RexSubQuery</a>&nbsp;subQuery)</code>&nbsp;</td>
</tr>
<tr id="i11" class="rowColor">
<td class="colFirst"><code><a href="../../../../org/apache/calcite/rex/RexVisitor.html" title="RexVisitor中的类型参数">R</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/calcite/rex/RexVisitor.html#visitTableInputRef-org.apache.calcite.rex.RexTableInputRef-">visitTableInputRef</a></span>(<a href="../../../../org/apache/calcite/rex/RexTableInputRef.html" title="org.apache.calcite.rex中的类">RexTableInputRef</a>&nbsp;fieldRef)</code>&nbsp;</td>
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<h3>方法详细资料</h3>
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<h4>visitInputRef</h4>
<pre><a href="../../../../org/apache/calcite/rex/RexVisitor.html" title="RexVisitor中的类型参数">R</a>&nbsp;visitInputRef(<a href="../../../../org/apache/calcite/rex/RexInputRef.html" title="org.apache.calcite.rex中的类">RexInputRef</a>&nbsp;inputRef)</pre>
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<a name="visitLocalRef-org.apache.calcite.rex.RexLocalRef-">
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<ul class="blockList">
<li class="blockList">
<h4>visitLocalRef</h4>
<pre><a href="../../../../org/apache/calcite/rex/RexVisitor.html" title="RexVisitor中的类型参数">R</a>&nbsp;visitLocalRef(<a href="../../../../org/apache/calcite/rex/RexLocalRef.html" title="org.apache.calcite.rex中的类">RexLocalRef</a>&nbsp;localRef)</pre>
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<a name="visitLiteral-org.apache.calcite.rex.RexLiteral-">
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<h4>visitLiteral</h4>
<pre><a href="../../../../org/apache/calcite/rex/RexVisitor.html" title="RexVisitor中的类型参数">R</a>&nbsp;visitLiteral(<a href="../../../../org/apache/calcite/rex/RexLiteral.html" title="org.apache.calcite.rex中的类">RexLiteral</a>&nbsp;literal)</pre>
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<a name="visitCall-org.apache.calcite.rex.RexCall-">
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<ul class="blockList">
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<h4>visitCall</h4>
<pre><a href="../../../../org/apache/calcite/rex/RexVisitor.html" title="RexVisitor中的类型参数">R</a>&nbsp;visitCall(<a href="../../../../org/apache/calcite/rex/RexCall.html" title="org.apache.calcite.rex中的类">RexCall</a>&nbsp;call)</pre>
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<a name="visitOver-org.apache.calcite.rex.RexOver-">
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<ul class="blockList">
<li class="blockList">
<h4>visitOver</h4>
<pre><a href="../../../../org/apache/calcite/rex/RexVisitor.html" title="RexVisitor中的类型参数">R</a>&nbsp;visitOver(<a href="../../../../org/apache/calcite/rex/RexOver.html" title="org.apache.calcite.rex中的类">RexOver</a>&nbsp;over)</pre>
</li>
</ul>
<a name="visitCorrelVariable-org.apache.calcite.rex.RexCorrelVariable-">
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<ul class="blockList">
<li class="blockList">
<h4>visitCorrelVariable</h4>
<pre><a href="../../../../org/apache/calcite/rex/RexVisitor.html" title="RexVisitor中的类型参数">R</a>&nbsp;visitCorrelVariable(<a href="../../../../org/apache/calcite/rex/RexCorrelVariable.html" title="org.apache.calcite.rex中的类">RexCorrelVariable</a>&nbsp;correlVariable)</pre>
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<a name="visitDynamicParam-org.apache.calcite.rex.RexDynamicParam-">
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<h4>visitDynamicParam</h4>
<pre><a href="../../../../org/apache/calcite/rex/RexVisitor.html" title="RexVisitor中的类型参数">R</a>&nbsp;visitDynamicParam(<a href="../../../../org/apache/calcite/rex/RexDynamicParam.html" title="org.apache.calcite.rex中的类">RexDynamicParam</a>&nbsp;dynamicParam)</pre>
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</ul>
<a name="visitRangeRef-org.apache.calcite.rex.RexRangeRef-">
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<ul class="blockList">
<li class="blockList">
<h4>visitRangeRef</h4>
<pre><a href="../../../../org/apache/calcite/rex/RexVisitor.html" title="RexVisitor中的类型参数">R</a>&nbsp;visitRangeRef(<a href="../../../../org/apache/calcite/rex/RexRangeRef.html" title="org.apache.calcite.rex中的类">RexRangeRef</a>&nbsp;rangeRef)</pre>
</li>
</ul>
<a name="visitFieldAccess-org.apache.calcite.rex.RexFieldAccess-">
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<ul class="blockList">
<li class="blockList">
<h4>visitFieldAccess</h4>
<pre><a href="../../../../org/apache/calcite/rex/RexVisitor.html" title="RexVisitor中的类型参数">R</a>&nbsp;visitFieldAccess(<a href="../../../../org/apache/calcite/rex/RexFieldAccess.html" title="org.apache.calcite.rex中的类">RexFieldAccess</a>&nbsp;fieldAccess)</pre>
</li>
</ul>
<a name="visitSubQuery-org.apache.calcite.rex.RexSubQuery-">
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<ul class="blockList">
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<h4>visitSubQuery</h4>
<pre><a href="../../../../org/apache/calcite/rex/RexVisitor.html" title="RexVisitor中的类型参数">R</a>&nbsp;visitSubQuery(<a href="../../../../org/apache/calcite/rex/RexSubQuery.html" title="org.apache.calcite.rex中的类">RexSubQuery</a>&nbsp;subQuery)</pre>
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<a name="visitTableInputRef-org.apache.calcite.rex.RexTableInputRef-">
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<h4>visitTableInputRef</h4>
<pre><a href="../../../../org/apache/calcite/rex/RexVisitor.html" title="RexVisitor中的类型参数">R</a>&nbsp;visitTableInputRef(<a href="../../../../org/apache/calcite/rex/RexTableInputRef.html" title="org.apache.calcite.rex中的类">RexTableInputRef</a>&nbsp;fieldRef)</pre>
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<h4>visitPatternFieldRef</h4>
<pre><a href="../../../../org/apache/calcite/rex/RexVisitor.html" title="RexVisitor中的类型参数">R</a>&nbsp;visitPatternFieldRef(<a href="../../../../org/apache/calcite/rex/RexPatternFieldRef.html" title="org.apache.calcite.rex中的类">RexPatternFieldRef</a>&nbsp;fieldRef)</pre>
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