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| <div class="subTitle"><span class="packageLabelInType">Package</span> <a href="package-summary.html">org.apache.calcite.rex</a></div> |
| <h1 title="Class RexCall" class="title">Class RexCall</h1> |
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| <div class="inheritance"><a href="RexNode.html" title="class in org.apache.calcite.rex">org.apache.calcite.rex.RexNode</a> |
| <div class="inheritance">org.apache.calcite.rex.RexCall</div> |
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| <section class="description"> |
| <dl> |
| <dt>Direct Known Subclasses:</dt> |
| <dd><code><a href="../rel/core/Match.RexMRAggCall.html" title="class in org.apache.calcite.rel.core">Match.RexMRAggCall</a></code>, <code><a href="RexOver.html" title="class in org.apache.calcite.rex">RexOver</a></code>, <code><a href="RexSubQuery.html" title="class in org.apache.calcite.rex">RexSubQuery</a></code>, <code><a href="../rel/core/Window.RexWinAggCall.html" title="class in org.apache.calcite.rel.core">Window.RexWinAggCall</a></code></dd> |
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| <hr> |
| <pre>public class <span class="typeNameLabel">RexCall</span> |
| extends <a href="RexNode.html" title="class in org.apache.calcite.rex">RexNode</a></pre> |
| <div class="block">An expression formed by a call to an operator with zero or more expressions |
| as operands. |
| |
| <p>Operators may be binary, unary, functions, special syntactic constructs |
| like <code>CASE ... WHEN ... END</code>, or even internally generated |
| constructs like implicit type conversions. The syntax of the operator is |
| really irrelevant, because row-expressions (unlike |
| <a href="../sql/SqlNode.html" title="class in org.apache.calcite.sql"><code>SQL expressions</code></a>) |
| do not directly represent a piece of source code. |
| |
| <p>It's not often necessary to sub-class this class. The smarts should be in |
| the operator, rather than the call. Any extra information about the call can |
| often be encoded as extra arguments. (These don't need to be hidden, because |
| no one is going to be generating source code from this tree.)</p></div> |
| </section> |
| <section class="summary"> |
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| <!-- =========== FIELD SUMMARY =========== --> |
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| <div class="memberSummary"> |
| <table> |
| <caption><span>Fields</span><span class="tabEnd"> </span></caption> |
| <thead> |
| <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> |
| </thead> |
| <tbody> |
| <tr class="altColor"> |
| <td class="colFirst"><code>protected int</code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#hash">hash</a></span></code></th> |
| <td class="colLast"> |
| <div class="block">Cache of hash code.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code>int</code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#nodeCount">nodeCount</a></span></code></th> |
| <td class="colLast"> </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code><a href="../sql/SqlOperator.html" title="class in org.apache.calcite.sql">SqlOperator</a></code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#op">op</a></span></code></th> |
| <td class="colLast"> </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code>com.google.common.collect.ImmutableList<<a href="RexNode.html" title="class in org.apache.calcite.rex">RexNode</a>></code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#operands">operands</a></span></code></th> |
| <td class="colLast"> </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code><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="#type">type</a></span></code></th> |
| <td class="colLast"> </td> |
| </tr> |
| </tbody> |
| </table> |
| </div> |
| <div class="inheritedList"> |
| <h3>Fields inherited from class org.apache.calcite.rex.<a href="RexNode.html" title="class in org.apache.calcite.rex">RexNode</a></h3> |
| <a id="fields.inherited.from.class.org.apache.calcite.rex.RexNode"> |
| <!-- --> |
| </a><code><a href="RexNode.html#digest">digest</a></code></div> |
| </section> |
| </li> |
| <!-- ======== CONSTRUCTOR SUMMARY ======== --> |
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| <section class="constructorSummary"><a id="constructor.summary"> |
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| <h2>Constructor Summary</h2> |
| <div class="memberSummary"> |
| <table> |
| <caption><span>Constructors</span><span class="tabEnd"> </span></caption> |
| <thead> |
| <tr> |
| <th class="colFirst" scope="col">Modifier</th> |
| <th class="colSecond" scope="col">Constructor</th> |
| <th class="colLast" scope="col">Description</th> |
| </tr> |
| </thead> |
| <tbody> |
| <tr class="altColor"> |
| <td class="colFirst"><code>protected </code></td> |
| <th class="colConstructorName" scope="row"><code><span class="memberNameLink"><a href="#%3Cinit%3E(org.apache.calcite.rel.type.RelDataType,org.apache.calcite.sql.SqlOperator,java.util.List)">RexCall</a></span>​(<a href="../rel/type/RelDataType.html" title="interface in org.apache.calcite.rel.type">RelDataType</a> type, |
| <a href="../sql/SqlOperator.html" title="class in org.apache.calcite.sql">SqlOperator</a> op, |
| <a href="https://docs.oracle.com/javase/9/docs/api/java/util/List.html?is-external=true" title="class or interface in java.util" class="externalLink">List</a><? extends <a href="RexNode.html" title="class in org.apache.calcite.rex">RexNode</a>> operands)</code></th> |
| <td class="colLast"> </td> |
| </tr> |
| </tbody> |
| </table> |
| </div> |
| </section> |
| </li> |
| <!-- ========== METHOD SUMMARY =========== --> |
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| <section class="methodSummary"><a id="method.summary"> |
| <!-- --> |
| </a> |
| <h2>Method Summary</h2> |
| <div class="memberSummary"> |
| <div role="tablist" aria-orientation="horizontal"><button role="tab" aria-selected="true" aria-controls="memberSummary_tabpanel" tabindex="0" onkeydown="switchTab(event)" id="t0" class="activeTableTab">All Methods</button><button role="tab" aria-selected="false" aria-controls="memberSummary_tabpanel" tabindex="-1" onkeydown="switchTab(event)" id="t2" class="tableTab" onclick="show(2);">Instance Methods</button><button role="tab" aria-selected="false" aria-controls="memberSummary_tabpanel" tabindex="-1" onkeydown="switchTab(event)" id="t4" class="tableTab" onclick="show(8);">Concrete Methods</button></div> |
| <div id="memberSummary_tabpanel" role="tabpanel"> |
| <table aria-labelledby="t0"> |
| <thead> |
| <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> |
| </thead> |
| <tbody> |
| <tr class="altColor" id="i0"> |
| <td class="colFirst"><code><R,​ |
| P> R</code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#accept(org.apache.calcite.rex.RexBiVisitor,P)">accept</a></span>​(<a href="RexBiVisitor.html" title="interface in org.apache.calcite.rex">RexBiVisitor</a><R,​P> visitor, |
| P arg)</code></th> |
| <td class="colLast"> |
| <div class="block">Accepts a visitor with a payload, dispatching to the right overloaded |
| <a href="RexBiVisitor.html#visitInputRef(org.apache.calcite.rex.RexInputRef,P)"><code>RexBiVisitor.visitInputRef(RexInputRef, Object)</code></a> visitXxx} method.</div> |
| </td> |
| </tr> |
| <tr class="rowColor" id="i1"> |
| <td class="colFirst"><code><R> R</code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#accept(org.apache.calcite.rex.RexVisitor)">accept</a></span>​(<a href="RexVisitor.html" title="interface in org.apache.calcite.rex">RexVisitor</a><R> visitor)</code></th> |
| <td class="colLast"> |
| <div class="block">Accepts a visitor, dispatching to the right overloaded |
| <a href="RexVisitor.html#visitInputRef(org.apache.calcite.rex.RexInputRef)"><code>visitXxx</code></a> method.</div> |
| </td> |
| </tr> |
| <tr class="altColor" id="i2"> |
| <td class="colFirst"><code>protected void</code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#appendOperands(java.lang.StringBuilder)">appendOperands</a></span>​(<a href="https://docs.oracle.com/javase/9/docs/api/java/lang/StringBuilder.html?is-external=true" title="class or interface in java.lang" class="externalLink">StringBuilder</a> sb)</code></th> |
| <td class="colLast"> |
| <div class="block">Appends call operands without parenthesis.</div> |
| </td> |
| </tr> |
| <tr class="rowColor" id="i3"> |
| <td class="colFirst"><code><a href="RexCall.html" title="class in org.apache.calcite.rex">RexCall</a></code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#clone(org.apache.calcite.rel.type.RelDataType,java.util.List)">clone</a></span>​(<a href="../rel/type/RelDataType.html" title="interface in org.apache.calcite.rel.type">RelDataType</a> type, |
| <a href="https://docs.oracle.com/javase/9/docs/api/java/util/List.html?is-external=true" title="class or interface in java.util" class="externalLink">List</a><<a href="RexNode.html" title="class in org.apache.calcite.rex">RexNode</a>> operands)</code></th> |
| <td class="colLast"> |
| <div class="block">Creates a new call to the same operator with different operands.</div> |
| </td> |
| </tr> |
| <tr class="altColor" id="i4"> |
| <td class="colFirst"><code>protected <a href="https://docs.oracle.com/javase/9/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang" class="externalLink">String</a></code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#computeDigest(boolean)">computeDigest</a></span>​(boolean withType)</code></th> |
| <td class="colLast"> </td> |
| </tr> |
| <tr class="rowColor" id="i5"> |
| <td class="colFirst"><code>boolean</code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#equals(java.lang.Object)">equals</a></span>​(<a href="https://docs.oracle.com/javase/9/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang" class="externalLink">Object</a> o)</code></th> |
| </tr> |
| <tr class="altColor" id="i6"> |
| <td class="colFirst"><code><a href="../sql/SqlKind.html" title="enum in org.apache.calcite.sql">SqlKind</a></code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#getKind()">getKind</a></span>()</code></th> |
| <td class="colLast"> |
| <div class="block">Returns the kind of node this is.</div> |
| </td> |
| </tr> |
| <tr class="rowColor" id="i7"> |
| <td class="colFirst"><code><a href="https://docs.oracle.com/javase/9/docs/api/java/util/List.html?is-external=true" title="class or interface in java.util" class="externalLink">List</a><<a href="RexNode.html" title="class in org.apache.calcite.rex">RexNode</a>></code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#getOperands()">getOperands</a></span>()</code></th> |
| <td class="colLast"> </td> |
| </tr> |
| <tr class="altColor" id="i8"> |
| <td class="colFirst"><code><a href="../sql/SqlOperator.html" title="class in org.apache.calcite.sql">SqlOperator</a></code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#getOperator()">getOperator</a></span>()</code></th> |
| <td class="colLast"> </td> |
| </tr> |
| <tr class="rowColor" id="i9"> |
| <td class="colFirst"><code><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="#getType()">getType</a></span>()</code></th> |
| <td class="colLast"> </td> |
| </tr> |
| <tr class="altColor" id="i10"> |
| <td class="colFirst"><code>int</code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#hashCode()">hashCode</a></span>()</code></th> |
| </tr> |
| <tr class="rowColor" id="i11"> |
| <td class="colFirst"><code>boolean</code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#isAlwaysFalse()">isAlwaysFalse</a></span>()</code></th> |
| <td class="colLast"> |
| <div class="block">Returns whether this expression always returns false.</div> |
| </td> |
| </tr> |
| <tr class="altColor" id="i12"> |
| <td class="colFirst"><code>boolean</code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#isAlwaysTrue()">isAlwaysTrue</a></span>()</code></th> |
| <td class="colLast"> |
| <div class="block">Returns whether this expression always returns true.</div> |
| </td> |
| </tr> |
| <tr class="rowColor" id="i13"> |
| <td class="colFirst"><code>int</code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#nodeCount()">nodeCount</a></span>()</code></th> |
| <td class="colLast"> |
| <div class="block">Returns the number of nodes in this expression.</div> |
| </td> |
| </tr> |
| <tr class="altColor" id="i14"> |
| <td class="colFirst"><code><a href="https://docs.oracle.com/javase/9/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang" class="externalLink">String</a></code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#toString()">toString</a></span>()</code></th> |
| <td class="colLast"> </td> |
| </tr> |
| </tbody> |
| </table> |
| </div> |
| </div> |
| <div class="inheritedList"> |
| <h3>Methods inherited from class org.apache.calcite.rex.<a href="RexNode.html" title="class in org.apache.calcite.rex">RexNode</a></h3> |
| <a id="methods.inherited.from.class.org.apache.calcite.rex.RexNode"> |
| <!-- --> |
| </a><code><a href="RexNode.html#isA(java.util.Collection)">isA</a>, <a href="RexNode.html#isA(org.apache.calcite.sql.SqlKind)">isA</a></code></div> |
| <div class="inheritedList"> |
| <h3>Methods inherited from class java.lang.<a href="https://docs.oracle.com/javase/9/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang" class="externalLink">Object</a></h3> |
| <a id="methods.inherited.from.class.java.lang.Object"> |
| <!-- --> |
| </a><code><a href="https://docs.oracle.com/javase/9/docs/api/java/lang/Object.html?is-external=true#clone()" title="class or interface in java.lang" class="externalLink">clone</a>, <a href="https://docs.oracle.com/javase/9/docs/api/java/lang/Object.html?is-external=true#finalize()" title="class or interface in java.lang" class="externalLink">finalize</a>, <a href="https://docs.oracle.com/javase/9/docs/api/java/lang/Object.html?is-external=true#getClass()" title="class or interface in java.lang" class="externalLink">getClass</a>, <a href="https://docs.oracle.com/javase/9/docs/api/java/lang/Object.html?is-external=true#notify()" title="class or interface in java.lang" class="externalLink">notify</a>, <a href="https://docs.oracle.com/javase/9/docs/api/java/lang/Object.html?is-external=true#notifyAll()" title="class or interface in java.lang" class="externalLink">notifyAll</a>, <a href="https://docs.oracle.com/javase/9/docs/api/java/lang/Object.html?is-external=true#wait()" title="class or interface in java.lang" class="externalLink">wait</a>, <a href="https://docs.oracle.com/javase/9/docs/api/java/lang/Object.html?is-external=true#wait(long)" title="class or interface in java.lang" class="externalLink">wait</a>, <a href="https://docs.oracle.com/javase/9/docs/api/java/lang/Object.html?is-external=true#wait(long,int)" title="class or interface in java.lang" class="externalLink">wait</a></code></div> |
| </section> |
| </li> |
| </ul> |
| </section> |
| <section class="details"> |
| <ul class="blockList"> |
| <!-- ============ FIELD DETAIL =========== --> |
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| <section class="fieldDetails"><a id="field.detail"> |
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| </a> |
| <h2>Field Details</h2> |
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| <section class="detail"> |
| <h3><a id="op">op</a></h3> |
| <div class="memberSignature"><span class="modifiers">public final</span> <span class="returnType"><a href="../sql/SqlOperator.html" title="class in org.apache.calcite.sql">SqlOperator</a></span> <span class="memberName">op</span></div> |
| </section> |
| </li> |
| <li class="blockList"> |
| <section class="detail"> |
| <h3><a id="operands">operands</a></h3> |
| <div class="memberSignature"><span class="modifiers">public final</span> <span class="returnType">com.google.common.collect.ImmutableList<<a href="RexNode.html" title="class in org.apache.calcite.rex">RexNode</a>></span> <span class="memberName">operands</span></div> |
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| <section class="detail"> |
| <h3><a id="type">type</a></h3> |
| <div class="memberSignature"><span class="modifiers">public final</span> <span class="returnType"><a href="../rel/type/RelDataType.html" title="interface in org.apache.calcite.rel.type">RelDataType</a></span> <span class="memberName">type</span></div> |
| </section> |
| </li> |
| <li class="blockList"> |
| <section class="detail"> |
| <h3><a id="nodeCount">nodeCount</a></h3> |
| <div class="memberSignature"><span class="modifiers">public final</span> <span class="returnType">int</span> <span class="memberName">nodeCount</span></div> |
| </section> |
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| <section class="detail"> |
| <h3><a id="hash">hash</a></h3> |
| <div class="memberSignature"><span class="modifiers">protected</span> <span class="returnType">int</span> <span class="memberName">hash</span></div> |
| <div class="block">Cache of hash code.</div> |
| </section> |
| </li> |
| </ul> |
| </section> |
| </li> |
| <!-- ========= CONSTRUCTOR DETAIL ======== --> |
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| <h3><a id="<init>(org.apache.calcite.rel.type.RelDataType,org.apache.calcite.sql.SqlOperator,java.util.List)">RexCall</a></h3> |
| <div class="memberSignature"><span class="modifiers">protected</span> <span class="memberName">RexCall</span>​(<span class="arguments"><a href="../rel/type/RelDataType.html" title="interface in org.apache.calcite.rel.type">RelDataType</a> type, |
| <a href="../sql/SqlOperator.html" title="class in org.apache.calcite.sql">SqlOperator</a> op, |
| <a href="https://docs.oracle.com/javase/9/docs/api/java/util/List.html?is-external=true" title="class or interface in java.util" class="externalLink">List</a><? extends <a href="RexNode.html" title="class in org.apache.calcite.rex">RexNode</a>> operands)</span></div> |
| </section> |
| </li> |
| </ul> |
| </section> |
| </li> |
| <!-- ============ METHOD DETAIL ========== --> |
| <li class="blockList"> |
| <section class="methodDetails"><a id="method.detail"> |
| <!-- --> |
| </a> |
| <h2>Method Details</h2> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <section class="detail"> |
| <h3><a id="appendOperands(java.lang.StringBuilder)">appendOperands</a></h3> |
| <div class="memberSignature"><span class="modifiers">protected final</span> <span class="returnType">void</span> <span class="memberName">appendOperands</span>​(<span class="arguments"><a href="https://docs.oracle.com/javase/9/docs/api/java/lang/StringBuilder.html?is-external=true" title="class or interface in java.lang" class="externalLink">StringBuilder</a> sb)</span></div> |
| <div class="block">Appends call operands without parenthesis. |
| <a href="RexLiteral.html" title="class in org.apache.calcite.rex"><code>RexLiteral</code></a> might omit data type depending on the context. |
| For instance, <code>null:BOOLEAN</code> vs <code>=(true, null)</code>. |
| The idea here is to omit "obvious" types for readability purposes while |
| still maintain <a href="../rel/RelNode.html#getDigest()"><code>RelNode.getDigest()</code></a> contract.</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>sb</code> - destination</dd> |
| <dt><span class="seeLabel">See Also:</span></dt> |
| <dd><a href="RexLiteral.html#computeDigest(org.apache.calcite.rex.RexDigestIncludeType)"><code>RexLiteral.computeDigest(RexDigestIncludeType)</code></a></dd> |
| </dl> |
| </section> |
| </li> |
| <li class="blockList"> |
| <section class="detail"> |
| <h3><a id="computeDigest(boolean)">computeDigest</a></h3> |
| <div class="memberSignature"><span class="annotations"><a href="https://docs.oracle.com/javase/9/docs/api/javax/annotation/Nonnull.html?is-external=true" title="class or interface in javax.annotation" class="externalLink">@Nonnull</a> |
| </span><span class="modifiers">protected</span> <span class="returnType"><a href="https://docs.oracle.com/javase/9/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang" class="externalLink">String</a></span> <span class="memberName">computeDigest</span>​(<span class="arguments">boolean withType)</span></div> |
| </section> |
| </li> |
| <li class="blockList"> |
| <section class="detail"> |
| <h3><a id="toString()">toString</a></h3> |
| <div class="memberSignature"><span class="annotations"><a href="https://docs.oracle.com/javase/9/docs/api/javax/annotation/Nonnull.html?is-external=true" title="class or interface in javax.annotation" class="externalLink">@Nonnull</a> |
| </span><span class="modifiers">public final</span> <span class="returnType"><a href="https://docs.oracle.com/javase/9/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang" class="externalLink">String</a></span> <span class="memberName">toString</span>()</div> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">Overrides:</span></dt> |
| <dd><code><a href="RexNode.html#toString()">toString</a></code> in class <code><a href="RexNode.html" title="class in org.apache.calcite.rex">RexNode</a></code></dd> |
| </dl> |
| </section> |
| </li> |
| <li class="blockList"> |
| <section class="detail"> |
| <h3><a id="accept(org.apache.calcite.rex.RexVisitor)">accept</a></h3> |
| <div class="memberSignature"><span class="modifiers">public</span> <span class="typeParameters"><R></span> <span class="returnType">R</span> <span class="memberName">accept</span>​(<span class="arguments"><a href="RexVisitor.html" title="interface in org.apache.calcite.rex">RexVisitor</a><R> visitor)</span></div> |
| <div class="block"><span class="descfrmTypeLabel">Description copied from class: <code><a href="RexNode.html#accept(org.apache.calcite.rex.RexVisitor)">RexNode</a></code></span></div> |
| <div class="block">Accepts a visitor, dispatching to the right overloaded |
| <a href="RexVisitor.html#visitInputRef(org.apache.calcite.rex.RexInputRef)"><code>visitXxx</code></a> method. |
| |
| <p>Also see <a href="RexUtil.html#apply(org.apache.calcite.rex.RexVisitor,java.util.List,org.apache.calcite.rex.RexNode)"><code>RexUtil.apply(RexVisitor, java.util.List, RexNode)</code></a>, |
| which applies a visitor to several expressions simultaneously.</div> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">Specified by:</span></dt> |
| <dd><code><a href="RexNode.html#accept(org.apache.calcite.rex.RexVisitor)">accept</a></code> in class <code><a href="RexNode.html" title="class in org.apache.calcite.rex">RexNode</a></code></dd> |
| </dl> |
| </section> |
| </li> |
| <li class="blockList"> |
| <section class="detail"> |
| <h3><a id="accept(org.apache.calcite.rex.RexBiVisitor,java.lang.Object)"> |
| <!-- --> |
| </a><a id="accept(org.apache.calcite.rex.RexBiVisitor,P)">accept</a></h3> |
| <div class="memberSignature"><span class="modifiers">public</span> <span class="typeParameters"><R,​ |
| P></span> <span class="returnType">R</span> <span class="memberName">accept</span>​(<span class="arguments"><a href="RexBiVisitor.html" title="interface in org.apache.calcite.rex">RexBiVisitor</a><R,​P> visitor, |
| P arg)</span></div> |
| <div class="block"><span class="descfrmTypeLabel">Description copied from class: <code><a href="RexNode.html#accept(org.apache.calcite.rex.RexBiVisitor,P)">RexNode</a></code></span></div> |
| <div class="block">Accepts a visitor with a payload, dispatching to the right overloaded |
| <a href="RexBiVisitor.html#visitInputRef(org.apache.calcite.rex.RexInputRef,P)"><code>RexBiVisitor.visitInputRef(RexInputRef, Object)</code></a> visitXxx} method.</div> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">Specified by:</span></dt> |
| <dd><code><a href="RexNode.html#accept(org.apache.calcite.rex.RexBiVisitor,P)">accept</a></code> in class <code><a href="RexNode.html" title="class in org.apache.calcite.rex">RexNode</a></code></dd> |
| </dl> |
| </section> |
| </li> |
| <li class="blockList"> |
| <section class="detail"> |
| <h3><a id="getType()">getType</a></h3> |
| <div class="memberSignature"><span class="modifiers">public</span> <span class="returnType"><a href="../rel/type/RelDataType.html" title="interface in org.apache.calcite.rel.type">RelDataType</a></span> <span class="memberName">getType</span>()</div> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">Specified by:</span></dt> |
| <dd><code><a href="RexNode.html#getType()">getType</a></code> in class <code><a href="RexNode.html" title="class in org.apache.calcite.rex">RexNode</a></code></dd> |
| </dl> |
| </section> |
| </li> |
| <li class="blockList"> |
| <section class="detail"> |
| <h3><a id="isAlwaysTrue()">isAlwaysTrue</a></h3> |
| <div class="memberSignature"><span class="modifiers">public</span> <span class="returnType">boolean</span> <span class="memberName">isAlwaysTrue</span>()</div> |
| <div class="block"><span class="descfrmTypeLabel">Description copied from class: <code><a href="RexNode.html#isAlwaysTrue()">RexNode</a></code></span></div> |
| <div class="block">Returns whether this expression always returns true. (Such as if this |
| expression is equal to the literal <code>TRUE</code>.)</div> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">Overrides:</span></dt> |
| <dd><code><a href="RexNode.html#isAlwaysTrue()">isAlwaysTrue</a></code> in class <code><a href="RexNode.html" title="class in org.apache.calcite.rex">RexNode</a></code></dd> |
| </dl> |
| </section> |
| </li> |
| <li class="blockList"> |
| <section class="detail"> |
| <h3><a id="isAlwaysFalse()">isAlwaysFalse</a></h3> |
| <div class="memberSignature"><span class="modifiers">public</span> <span class="returnType">boolean</span> <span class="memberName">isAlwaysFalse</span>()</div> |
| <div class="block"><span class="descfrmTypeLabel">Description copied from class: <code><a href="RexNode.html#isAlwaysFalse()">RexNode</a></code></span></div> |
| <div class="block">Returns whether this expression always returns false. (Such as if this |
| expression is equal to the literal <code>FALSE</code>.)</div> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">Overrides:</span></dt> |
| <dd><code><a href="RexNode.html#isAlwaysFalse()">isAlwaysFalse</a></code> in class <code><a href="RexNode.html" title="class in org.apache.calcite.rex">RexNode</a></code></dd> |
| </dl> |
| </section> |
| </li> |
| <li class="blockList"> |
| <section class="detail"> |
| <h3><a id="getKind()">getKind</a></h3> |
| <div class="memberSignature"><span class="modifiers">public</span> <span class="returnType"><a href="../sql/SqlKind.html" title="enum in org.apache.calcite.sql">SqlKind</a></span> <span class="memberName">getKind</span>()</div> |
| <div class="block"><span class="descfrmTypeLabel">Description copied from class: <code><a href="RexNode.html#getKind()">RexNode</a></code></span></div> |
| <div class="block">Returns the kind of node this is.</div> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">Overrides:</span></dt> |
| <dd><code><a href="RexNode.html#getKind()">getKind</a></code> in class <code><a href="RexNode.html" title="class in org.apache.calcite.rex">RexNode</a></code></dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>Node kind, never null</dd> |
| </dl> |
| </section> |
| </li> |
| <li class="blockList"> |
| <section class="detail"> |
| <h3><a id="getOperands()">getOperands</a></h3> |
| <div class="memberSignature"><span class="modifiers">public</span> <span class="returnType"><a href="https://docs.oracle.com/javase/9/docs/api/java/util/List.html?is-external=true" title="class or interface in java.util" class="externalLink">List</a><<a href="RexNode.html" title="class in org.apache.calcite.rex">RexNode</a>></span> <span class="memberName">getOperands</span>()</div> |
| </section> |
| </li> |
| <li class="blockList"> |
| <section class="detail"> |
| <h3><a id="getOperator()">getOperator</a></h3> |
| <div class="memberSignature"><span class="modifiers">public</span> <span class="returnType"><a href="../sql/SqlOperator.html" title="class in org.apache.calcite.sql">SqlOperator</a></span> <span class="memberName">getOperator</span>()</div> |
| </section> |
| </li> |
| <li class="blockList"> |
| <section class="detail"> |
| <h3><a id="nodeCount()">nodeCount</a></h3> |
| <div class="memberSignature"><span class="modifiers">public</span> <span class="returnType">int</span> <span class="memberName">nodeCount</span>()</div> |
| <div class="block"><span class="descfrmTypeLabel">Description copied from class: <code><a href="RexNode.html#nodeCount()">RexNode</a></code></span></div> |
| <div class="block">Returns the number of nodes in this expression. |
| |
| <p>Leaf nodes, such as <a href="RexInputRef.html" title="class in org.apache.calcite.rex"><code>RexInputRef</code></a> or <a href="RexLiteral.html" title="class in org.apache.calcite.rex"><code>RexLiteral</code></a>, have |
| a count of 1. Calls have a count of 1 plus the sum of their operands. |
| |
| <p>Node count is a measure of expression complexity that is used by some |
| planner rules to prevent deeply nested expressions.</div> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">Overrides:</span></dt> |
| <dd><code><a href="RexNode.html#nodeCount()">nodeCount</a></code> in class <code><a href="RexNode.html" title="class in org.apache.calcite.rex">RexNode</a></code></dd> |
| </dl> |
| </section> |
| </li> |
| <li class="blockList"> |
| <section class="detail"> |
| <h3><a id="clone(org.apache.calcite.rel.type.RelDataType,java.util.List)">clone</a></h3> |
| <div class="memberSignature"><span class="modifiers">public</span> <span class="returnType"><a href="RexCall.html" title="class in org.apache.calcite.rex">RexCall</a></span> <span class="memberName">clone</span>​(<span class="arguments"><a href="../rel/type/RelDataType.html" title="interface in org.apache.calcite.rel.type">RelDataType</a> type, |
| <a href="https://docs.oracle.com/javase/9/docs/api/java/util/List.html?is-external=true" title="class or interface in java.util" class="externalLink">List</a><<a href="RexNode.html" title="class in org.apache.calcite.rex">RexNode</a>> operands)</span></div> |
| <div class="block">Creates a new call to the same operator with different operands.</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>type</code> - Return type</dd> |
| <dd><code>operands</code> - Operands to call</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>New call</dd> |
| </dl> |
| </section> |
| </li> |
| <li class="blockList"> |
| <section class="detail"> |
| <h3><a id="equals(java.lang.Object)">equals</a></h3> |
| <div class="memberSignature"><span class="modifiers">public</span> <span class="returnType">boolean</span> <span class="memberName">equals</span>​(<span class="arguments"><a href="https://docs.oracle.com/javase/9/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang" class="externalLink">Object</a> o)</span></div> |
| <div class="block"><span class="descfrmTypeLabel">Description copied from class: <code><a href="RexNode.html#equals(java.lang.Object)">RexNode</a></code></span></div> |
| <div class="block"> |
| |
| <p>Every node must implement <a href="RexNode.html#equals(java.lang.Object)"><code>RexNode.equals(java.lang.Object)</code></a> based on its content</div> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">Specified by:</span></dt> |
| <dd><code><a href="RexNode.html#equals(java.lang.Object)">equals</a></code> in class <code><a href="RexNode.html" title="class in org.apache.calcite.rex">RexNode</a></code></dd> |
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| <h3><a id="hashCode()">hashCode</a></h3> |
| <div class="memberSignature"><span class="modifiers">public</span> <span class="returnType">int</span> <span class="memberName">hashCode</span>()</div> |
| <div class="block"><span class="descfrmTypeLabel">Description copied from class: <code><a href="RexNode.html#hashCode()">RexNode</a></code></span></div> |
| <div class="block"> |
| |
| <p>Every node must implement <a href="RexNode.html#hashCode()"><code>RexNode.hashCode()</code></a> consistent with |
| <a href="RexNode.html#equals(java.lang.Object)"><code>RexNode.equals(java.lang.Object)</code></a></div> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">Specified by:</span></dt> |
| <dd><code><a href="RexNode.html#hashCode()">hashCode</a></code> in class <code><a href="RexNode.html" title="class in org.apache.calcite.rex">RexNode</a></code></dd> |
| </dl> |
| </section> |
| </li> |
| </ul> |
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