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| <li>Summary: </li> |
| <li>Nested | </li> |
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| <div class="subTitle"><span class="packageLabelInType">Package</span> <a href="package-summary.html">org.apache.calcite.rex</a></div> |
| <h2 title="Class RexChecker" class="title">Class RexChecker</h2> |
| </div> |
| <div class="contentContainer"> |
| <ul class="inheritance"> |
| <li>java.lang.Object</li> |
| <li> |
| <ul class="inheritance"> |
| <li><a href="RexVisitorImpl.html" title="class in org.apache.calcite.rex">org.apache.calcite.rex.RexVisitorImpl</a><java.lang.Boolean></li> |
| <li> |
| <ul class="inheritance"> |
| <li>org.apache.calcite.rex.RexChecker</li> |
| </ul> |
| </li> |
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| <dl> |
| <dt>All Implemented Interfaces:</dt> |
| <dd><code><a href="RexVisitor.html" title="interface in org.apache.calcite.rex">RexVisitor</a><java.lang.Boolean></code></dd> |
| </dl> |
| <dl> |
| <dt>Direct Known Subclasses:</dt> |
| <dd><code><a href="RexProgram.Checker.html" title="class in org.apache.calcite.rex">RexProgram.Checker</a></code></dd> |
| </dl> |
| <hr> |
| <pre>public class <span class="typeNameLabel">RexChecker</span> |
| extends <a href="RexVisitorImpl.html" title="class in org.apache.calcite.rex">RexVisitorImpl</a><java.lang.Boolean></pre> |
| <div class="block">Visitor which checks the validity of a <a href="RexNode.html" title="class in org.apache.calcite.rex"><code>RexNode</code></a> expression. |
| |
| <p>There are two modes of operation: |
| |
| <ul> |
| <li>Use<code>fail=true</code> to throw an <code>AssertionError</code> as soon as |
| an invalid node is detected: |
| |
| <blockquote><code>RexNode node;<br> |
| RelDataType rowType;<br> |
| assert new RexChecker(rowType, true).isValid(node);</code></blockquote> |
| |
| This mode requires that assertions are enabled.</li> |
| |
| <li>Use <code>fail=false</code> to test for validity without throwing an |
| error. |
| |
| <blockquote><code>RexNode node;<br> |
| RelDataType rowType;<br> |
| RexChecker checker = new RexChecker(rowType, false);<br> |
| node.accept(checker);<br> |
| if (!checker.valid) {<br> |
| ...<br> |
| }</code></blockquote> |
| </li> |
| </ul></div> |
| <dl> |
| <dt><span class="seeLabel">See Also:</span></dt> |
| <dd><a href="RexNode.html" title="class in org.apache.calcite.rex"><code>RexNode</code></a></dd> |
| </dl> |
| </li> |
| </ul> |
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| <h3>Field Summary</h3> |
| <table class="memberSummary"> |
| <caption><span>Fields</span><span class="tabEnd"> </span></caption> |
| <tr> |
| <th class="colFirst" scope="col">Modifier and Type</th> |
| <th class="colSecond" scope="col">Field</th> |
| <th class="colLast" scope="col">Description</th> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>protected <a href="../rel/RelNode.Context.html" title="interface in org.apache.calcite.rel">RelNode.Context</a></code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#context">context</a></span></code></th> |
| <td class="colLast"> </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code>protected int</code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#failCount">failCount</a></span></code></th> |
| <td class="colLast"> </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>protected java.util.List<<a href="../rel/type/RelDataType.html" title="interface in org.apache.calcite.rel.type">RelDataType</a>></code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#inputTypeList">inputTypeList</a></span></code></th> |
| <td class="colLast"> </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code>protected <a href="../util/Litmus.html" title="interface in org.apache.calcite.util">Litmus</a></code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#litmus">litmus</a></span></code></th> |
| <td class="colLast"> </td> |
| </tr> |
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| <!-- --> |
| </a> |
| <h3>Fields inherited from class org.apache.calcite.rex.<a href="RexVisitorImpl.html" title="class in org.apache.calcite.rex">RexVisitorImpl</a></h3> |
| <code><a href="RexVisitorImpl.html#deep">deep</a></code></li> |
| </ul> |
| </li> |
| </ul> |
| </section> |
| <!-- ======== CONSTRUCTOR SUMMARY ======== --> |
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| </a> |
| <h3>Constructor Summary</h3> |
| <table class="memberSummary"> |
| <caption><span>Constructors</span><span class="tabEnd"> </span></caption> |
| <tr> |
| <th class="colFirst" scope="col">Constructor</th> |
| <th class="colLast" scope="col">Description</th> |
| </tr> |
| <tr class="altColor"> |
| <th class="colConstructorName" scope="row"><code><span class="memberNameLink"><a href="#%3Cinit%3E(java.util.List,org.apache.calcite.rel.RelNode.Context,org.apache.calcite.util.Litmus)">RexChecker</a></span>​(java.util.List<<a href="../rel/type/RelDataType.html" title="interface in org.apache.calcite.rel.type">RelDataType</a>> inputTypeList, |
| <a href="../rel/RelNode.Context.html" title="interface in org.apache.calcite.rel">RelNode.Context</a> context, |
| <a href="../util/Litmus.html" title="interface in org.apache.calcite.util">Litmus</a> litmus)</code></th> |
| <td class="colLast"> |
| <div class="block">Creates a RexChecker with a given set of input fields.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <th class="colConstructorName" scope="row"><code><span class="memberNameLink"><a href="#%3Cinit%3E(org.apache.calcite.rel.type.RelDataType,org.apache.calcite.rel.RelNode.Context,org.apache.calcite.util.Litmus)">RexChecker</a></span>​(<a href="../rel/type/RelDataType.html" title="interface in org.apache.calcite.rel.type">RelDataType</a> inputRowType, |
| <a href="../rel/RelNode.Context.html" title="interface in org.apache.calcite.rel">RelNode.Context</a> context, |
| <a href="../util/Litmus.html" title="interface in org.apache.calcite.util">Litmus</a> litmus)</code></th> |
| <td class="colLast"> |
| <div class="block">Creates a RexChecker with a given input row type.</div> |
| </td> |
| </tr> |
| </table> |
| </li> |
| </ul> |
| </section> |
| <!-- ========== METHOD SUMMARY =========== --> |
| <section role="region"> |
| <ul class="blockList"> |
| <li class="blockList"><a id="method.summary"> |
| <!-- --> |
| </a> |
| <h3>Method Summary</h3> |
| <table class="memberSummary"> |
| <caption><span id="t0" class="activeTableTab"><span>All Methods</span><span class="tabEnd"> </span></span><span id="t2" class="tableTab"><span><a href="javascript:show(2);">Instance Methods</a></span><span class="tabEnd"> </span></span><span id="t4" class="tableTab"><span><a href="javascript:show(8);">Concrete Methods</a></span><span class="tabEnd"> </span></span></caption> |
| <tr> |
| <th class="colFirst" scope="col">Modifier and Type</th> |
| <th class="colSecond" scope="col">Method</th> |
| <th class="colLast" scope="col">Description</th> |
| </tr> |
| <tr id="i0" class="altColor"> |
| <td class="colFirst"><code>int</code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#getFailureCount()">getFailureCount</a></span>()</code></th> |
| <td class="colLast"> |
| <div class="block">Returns the number of failures encountered.</div> |
| </td> |
| </tr> |
| <tr id="i1" class="rowColor"> |
| <td class="colFirst"><code>boolean</code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#isValid(org.apache.calcite.rex.RexNode)">isValid</a></span>​(<a href="RexNode.html" title="class in org.apache.calcite.rex">RexNode</a> expr)</code></th> |
| <td class="colLast"> |
| <div class="block">Returns whether an expression is valid.</div> |
| </td> |
| </tr> |
| <tr id="i2" class="altColor"> |
| <td class="colFirst"><code>java.lang.Boolean</code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#visitCall(org.apache.calcite.rex.RexCall)">visitCall</a></span>​(<a href="RexCall.html" title="class in org.apache.calcite.rex">RexCall</a> call)</code></th> |
| <td class="colLast"> </td> |
| </tr> |
| <tr id="i3" class="rowColor"> |
| <td class="colFirst"><code>java.lang.Boolean</code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#visitCorrelVariable(org.apache.calcite.rex.RexCorrelVariable)">visitCorrelVariable</a></span>​(<a href="RexCorrelVariable.html" title="class in org.apache.calcite.rex">RexCorrelVariable</a> v)</code></th> |
| <td class="colLast"> </td> |
| </tr> |
| <tr id="i4" class="altColor"> |
| <td class="colFirst"><code>java.lang.Boolean</code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#visitFieldAccess(org.apache.calcite.rex.RexFieldAccess)">visitFieldAccess</a></span>​(<a href="RexFieldAccess.html" title="class in org.apache.calcite.rex">RexFieldAccess</a> fieldAccess)</code></th> |
| <td class="colLast"> </td> |
| </tr> |
| <tr id="i5" class="rowColor"> |
| <td class="colFirst"><code>java.lang.Boolean</code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#visitInputRef(org.apache.calcite.rex.RexInputRef)">visitInputRef</a></span>​(<a href="RexInputRef.html" title="class in org.apache.calcite.rex">RexInputRef</a> ref)</code></th> |
| <td class="colLast"> </td> |
| </tr> |
| <tr id="i6" class="altColor"> |
| <td class="colFirst"><code>java.lang.Boolean</code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#visitLocalRef(org.apache.calcite.rex.RexLocalRef)">visitLocalRef</a></span>​(<a href="RexLocalRef.html" title="class in org.apache.calcite.rex">RexLocalRef</a> ref)</code></th> |
| <td class="colLast"> </td> |
| </tr> |
| </table> |
| <ul class="blockList"> |
| <li class="blockList"><a id="methods.inherited.from.class.org.apache.calcite.rex.RexVisitorImpl"> |
| <!-- --> |
| </a> |
| <h3>Methods inherited from class org.apache.calcite.rex.<a href="RexVisitorImpl.html" title="class in org.apache.calcite.rex">RexVisitorImpl</a></h3> |
| <code><a href="RexVisitorImpl.html#visitArrayAnd(org.apache.calcite.rex.RexVisitor,java.util.List)">visitArrayAnd</a>, <a href="RexVisitorImpl.html#visitArrayOr(org.apache.calcite.rex.RexVisitor,java.util.List)">visitArrayOr</a>, <a href="RexVisitorImpl.html#visitDynamicParam(org.apache.calcite.rex.RexDynamicParam)">visitDynamicParam</a>, <a href="RexVisitorImpl.html#visitLiteral(org.apache.calcite.rex.RexLiteral)">visitLiteral</a>, <a href="RexVisitorImpl.html#visitOver(org.apache.calcite.rex.RexOver)">visitOver</a>, <a href="RexVisitorImpl.html#visitPatternFieldRef(org.apache.calcite.rex.RexPatternFieldRef)">visitPatternFieldRef</a>, <a href="RexVisitorImpl.html#visitRangeRef(org.apache.calcite.rex.RexRangeRef)">visitRangeRef</a>, <a href="RexVisitorImpl.html#visitSubQuery(org.apache.calcite.rex.RexSubQuery)">visitSubQuery</a>, <a href="RexVisitorImpl.html#visitTableInputRef(org.apache.calcite.rex.RexTableInputRef)">visitTableInputRef</a></code></li> |
| </ul> |
| <ul class="blockList"> |
| <li class="blockList"><a id="methods.inherited.from.class.java.lang.Object"> |
| <!-- --> |
| </a> |
| <h3>Methods inherited from class java.lang.Object</h3> |
| <code>clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait</code></li> |
| </ul> |
| </li> |
| </ul> |
| </section> |
| </li> |
| </ul> |
| </div> |
| <div class="details"> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <!-- ============ FIELD DETAIL =========== --> |
| <section role="region"> |
| <ul class="blockList"> |
| <li class="blockList"><a id="field.detail"> |
| <!-- --> |
| </a> |
| <h3>Field Detail</h3> |
| <a id="context"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>context</h4> |
| <pre>protected final <a href="../rel/RelNode.Context.html" title="interface in org.apache.calcite.rel">RelNode.Context</a> context</pre> |
| </li> |
| </ul> |
| <a id="litmus"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>litmus</h4> |
| <pre>protected final <a href="../util/Litmus.html" title="interface in org.apache.calcite.util">Litmus</a> litmus</pre> |
| </li> |
| </ul> |
| <a id="inputTypeList"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>inputTypeList</h4> |
| <pre>protected final java.util.List<<a href="../rel/type/RelDataType.html" title="interface in org.apache.calcite.rel.type">RelDataType</a>> inputTypeList</pre> |
| </li> |
| </ul> |
| <a id="failCount"> |
| <!-- --> |
| </a> |
| <ul class="blockListLast"> |
| <li class="blockList"> |
| <h4>failCount</h4> |
| <pre>protected int failCount</pre> |
| </li> |
| </ul> |
| </li> |
| </ul> |
| </section> |
| <!-- ========= CONSTRUCTOR DETAIL ======== --> |
| <section role="region"> |
| <ul class="blockList"> |
| <li class="blockList"><a id="constructor.detail"> |
| <!-- --> |
| </a> |
| <h3>Constructor Detail</h3> |
| <a id="<init>(org.apache.calcite.rel.type.RelDataType,org.apache.calcite.rel.RelNode.Context,org.apache.calcite.util.Litmus)"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>RexChecker</h4> |
| <pre>public RexChecker​(<a href="../rel/type/RelDataType.html" title="interface in org.apache.calcite.rel.type">RelDataType</a> inputRowType, |
| <a href="../rel/RelNode.Context.html" title="interface in org.apache.calcite.rel">RelNode.Context</a> context, |
| <a href="../util/Litmus.html" title="interface in org.apache.calcite.util">Litmus</a> litmus)</pre> |
| <div class="block">Creates a RexChecker with a given input row type. |
| |
| <p>If <code>fail</code> is true, the checker will throw an |
| <code>AssertionError</code> if an invalid node is found and assertions are |
| enabled. |
| |
| <p>Otherwise, each method returns whether its part of the tree is valid.</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>inputRowType</code> - Input row type</dd> |
| <dd><code>context</code> - Context of the enclosing <a href="../rel/RelNode.html" title="interface in org.apache.calcite.rel"><code>RelNode</code></a>, or null</dd> |
| <dd><code>litmus</code> - What to do if an invalid node is detected</dd> |
| </dl> |
| </li> |
| </ul> |
| <a id="<init>(java.util.List,org.apache.calcite.rel.RelNode.Context,org.apache.calcite.util.Litmus)"> |
| <!-- --> |
| </a> |
| <ul class="blockListLast"> |
| <li class="blockList"> |
| <h4>RexChecker</h4> |
| <pre>public RexChecker​(java.util.List<<a href="../rel/type/RelDataType.html" title="interface in org.apache.calcite.rel.type">RelDataType</a>> inputTypeList, |
| <a href="../rel/RelNode.Context.html" title="interface in org.apache.calcite.rel">RelNode.Context</a> context, |
| <a href="../util/Litmus.html" title="interface in org.apache.calcite.util">Litmus</a> litmus)</pre> |
| <div class="block">Creates a RexChecker with a given set of input fields. |
| |
| <p>If <code>fail</code> is true, the checker will throw an |
| <code>AssertionError</code> if an invalid node is found and assertions are |
| enabled. |
| |
| <p>Otherwise, each method returns whether its part of the tree is valid.</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>inputTypeList</code> - Input row type</dd> |
| <dd><code>context</code> - Context of the enclosing <a href="../rel/RelNode.html" title="interface in org.apache.calcite.rel"><code>RelNode</code></a>, or null</dd> |
| <dd><code>litmus</code> - What to do if an error is detected</dd> |
| </dl> |
| </li> |
| </ul> |
| </li> |
| </ul> |
| </section> |
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| <a id="getFailureCount()"> |
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| <h4>getFailureCount</h4> |
| <pre class="methodSignature">public int getFailureCount()</pre> |
| <div class="block">Returns the number of failures encountered.</div> |
| <dl> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>Number of failures</dd> |
| </dl> |
| </li> |
| </ul> |
| <a id="visitInputRef(org.apache.calcite.rex.RexInputRef)"> |
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| <li class="blockList"> |
| <h4>visitInputRef</h4> |
| <pre class="methodSignature">public java.lang.Boolean visitInputRef​(<a href="RexInputRef.html" title="class in org.apache.calcite.rex">RexInputRef</a> ref)</pre> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">Specified by:</span></dt> |
| <dd><code><a href="RexVisitor.html#visitInputRef(org.apache.calcite.rex.RexInputRef)">visitInputRef</a></code> in interface <code><a href="RexVisitor.html" title="interface in org.apache.calcite.rex">RexVisitor</a><java.lang.Boolean></code></dd> |
| <dt><span class="overrideSpecifyLabel">Overrides:</span></dt> |
| <dd><code><a href="RexVisitorImpl.html#visitInputRef(org.apache.calcite.rex.RexInputRef)">visitInputRef</a></code> in class <code><a href="RexVisitorImpl.html" title="class in org.apache.calcite.rex">RexVisitorImpl</a><java.lang.Boolean></code></dd> |
| </dl> |
| </li> |
| </ul> |
| <a id="visitLocalRef(org.apache.calcite.rex.RexLocalRef)"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>visitLocalRef</h4> |
| <pre class="methodSignature">public java.lang.Boolean visitLocalRef​(<a href="RexLocalRef.html" title="class in org.apache.calcite.rex">RexLocalRef</a> ref)</pre> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">Specified by:</span></dt> |
| <dd><code><a href="RexVisitor.html#visitLocalRef(org.apache.calcite.rex.RexLocalRef)">visitLocalRef</a></code> in interface <code><a href="RexVisitor.html" title="interface in org.apache.calcite.rex">RexVisitor</a><java.lang.Boolean></code></dd> |
| <dt><span class="overrideSpecifyLabel">Overrides:</span></dt> |
| <dd><code><a href="RexVisitorImpl.html#visitLocalRef(org.apache.calcite.rex.RexLocalRef)">visitLocalRef</a></code> in class <code><a href="RexVisitorImpl.html" title="class in org.apache.calcite.rex">RexVisitorImpl</a><java.lang.Boolean></code></dd> |
| </dl> |
| </li> |
| </ul> |
| <a id="visitCall(org.apache.calcite.rex.RexCall)"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>visitCall</h4> |
| <pre class="methodSignature">public java.lang.Boolean visitCall​(<a href="RexCall.html" title="class in org.apache.calcite.rex">RexCall</a> call)</pre> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">Specified by:</span></dt> |
| <dd><code><a href="RexVisitor.html#visitCall(org.apache.calcite.rex.RexCall)">visitCall</a></code> in interface <code><a href="RexVisitor.html" title="interface in org.apache.calcite.rex">RexVisitor</a><java.lang.Boolean></code></dd> |
| <dt><span class="overrideSpecifyLabel">Overrides:</span></dt> |
| <dd><code><a href="RexVisitorImpl.html#visitCall(org.apache.calcite.rex.RexCall)">visitCall</a></code> in class <code><a href="RexVisitorImpl.html" title="class in org.apache.calcite.rex">RexVisitorImpl</a><java.lang.Boolean></code></dd> |
| </dl> |
| </li> |
| </ul> |
| <a id="visitFieldAccess(org.apache.calcite.rex.RexFieldAccess)"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>visitFieldAccess</h4> |
| <pre class="methodSignature">public java.lang.Boolean visitFieldAccess​(<a href="RexFieldAccess.html" title="class in org.apache.calcite.rex">RexFieldAccess</a> fieldAccess)</pre> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">Specified by:</span></dt> |
| <dd><code><a href="RexVisitor.html#visitFieldAccess(org.apache.calcite.rex.RexFieldAccess)">visitFieldAccess</a></code> in interface <code><a href="RexVisitor.html" title="interface in org.apache.calcite.rex">RexVisitor</a><java.lang.Boolean></code></dd> |
| <dt><span class="overrideSpecifyLabel">Overrides:</span></dt> |
| <dd><code><a href="RexVisitorImpl.html#visitFieldAccess(org.apache.calcite.rex.RexFieldAccess)">visitFieldAccess</a></code> in class <code><a href="RexVisitorImpl.html" title="class in org.apache.calcite.rex">RexVisitorImpl</a><java.lang.Boolean></code></dd> |
| </dl> |
| </li> |
| </ul> |
| <a id="visitCorrelVariable(org.apache.calcite.rex.RexCorrelVariable)"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>visitCorrelVariable</h4> |
| <pre class="methodSignature">public java.lang.Boolean visitCorrelVariable​(<a href="RexCorrelVariable.html" title="class in org.apache.calcite.rex">RexCorrelVariable</a> v)</pre> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">Specified by:</span></dt> |
| <dd><code><a href="RexVisitor.html#visitCorrelVariable(org.apache.calcite.rex.RexCorrelVariable)">visitCorrelVariable</a></code> in interface <code><a href="RexVisitor.html" title="interface in org.apache.calcite.rex">RexVisitor</a><java.lang.Boolean></code></dd> |
| <dt><span class="overrideSpecifyLabel">Overrides:</span></dt> |
| <dd><code><a href="RexVisitorImpl.html#visitCorrelVariable(org.apache.calcite.rex.RexCorrelVariable)">visitCorrelVariable</a></code> in class <code><a href="RexVisitorImpl.html" title="class in org.apache.calcite.rex">RexVisitorImpl</a><java.lang.Boolean></code></dd> |
| </dl> |
| </li> |
| </ul> |
| <a id="isValid(org.apache.calcite.rex.RexNode)"> |
| <!-- --> |
| </a> |
| <ul class="blockListLast"> |
| <li class="blockList"> |
| <h4>isValid</h4> |
| <pre class="methodSignature">public final boolean isValid​(<a href="RexNode.html" title="class in org.apache.calcite.rex">RexNode</a> expr)</pre> |
| <div class="block">Returns whether an expression is valid.</div> |
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