| <!DOCTYPE HTML> |
| <!-- NewPage --> |
| <html lang="en"> |
| <head> |
| <!-- Generated by javadoc --> |
| <title>AbstractConverter.ExpandConversionRule (Apache Calcite calcite API)</title> |
| <meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> |
| <meta name="description" content="declaration: package: org.apache.calcite.plan.volcano, class: AbstractConverter, class: ExpandConversionRule"> |
| <meta name="generator" content="javadoc/ClassWriterImpl"> |
| <link rel="stylesheet" type="text/css" href="../../../../../stylesheet.css" title="Style"> |
| <link rel="stylesheet" type="text/css" href="../../../../../script-dir/jquery-ui.css" title="Style"> |
| <script type="text/javascript" src="../../../../../script.js"></script> |
| <script type="text/javascript" src="../../../../../script-dir/jszip/dist/jszip.min.js"></script> |
| <script type="text/javascript" src="../../../../../script-dir/jszip-utils/dist/jszip-utils.min.js"></script> |
| <!--[if IE]> |
| <script type="text/javascript" src="../../../../../script-dir/jszip-utils/dist/jszip-utils-ie.min.js"></script> |
| <![endif]--> |
| <script type="text/javascript" src="../../../../../script-dir/jquery-3.4.1.js"></script> |
| <script type="text/javascript" src="../../../../../script-dir/jquery-ui.js"></script> |
| </head> |
| <body class="class-declaration"> |
| <script type="text/javascript">var data = {"i0":10}; |
| var tabs = {65535:["t0","All Methods"],2:["t2","Instance Methods"],8:["t4","Concrete Methods"]}; |
| var altColor = "altColor"; |
| var rowColor = "rowColor"; |
| var tableTab = "tableTab"; |
| var activeTableTab = "activeTableTab"; |
| var pathtoroot = "../../../../../"; |
| loadScripts(document, 'script');</script> |
| <noscript> |
| <div>JavaScript is disabled on your browser.</div> |
| </noscript> |
| <div class="flexBox"> |
| <header role="banner" class="flexHeader"> |
| <nav role="navigation"> |
| <!-- ========= START OF TOP NAVBAR ======= --> |
| <div class="topNav"><a id="navbar.top"> |
| <!-- --> |
| </a> |
| <div class="skipNav"><a href="#skip.navbar.top" title="Skip navigation links">Skip navigation links</a></div> |
| <a id="navbar.top.firstrow"> |
| <!-- --> |
| </a> |
| <ul class="navList" title="Navigation"> |
| <li><a href="../../../../../index.html">Overview</a></li> |
| <li><a href="package-summary.html">Package</a></li> |
| <li class="navBarCell1Rev">Class</li> |
| <li><a href="package-tree.html">Tree</a></li> |
| <li><a href="../../../../../deprecated-list.html">Deprecated</a></li> |
| <li><a href="../../../../../index-all.html">Index</a></li> |
| <li><a href="../../../../../help-doc.html">Help</a></li> |
| </ul> |
| <div class="aboutLanguage"><b>Apache Calcite</b></div> |
| </div> |
| <div class="subNav"> |
| <div> |
| <ul class="subNavList"> |
| <li>Summary: </li> |
| <li><a href="#nested.class.summary">Nested</a> | </li> |
| <li><a href="#field.summary">Field</a> | </li> |
| <li><a href="#constructor.summary">Constr</a> | </li> |
| <li><a href="#method.summary">Method</a></li> |
| </ul> |
| <ul class="subNavList"> |
| <li>Detail: </li> |
| <li><a href="#field.detail">Field</a> | </li> |
| <li><a href="#constructor.detail">Constr</a> | </li> |
| <li><a href="#method.detail">Method</a></li> |
| </ul> |
| </div> |
| <div class="navListSearch"><label for="search">SEARCH:</label> |
| <input type="text" id="search" value="search" disabled="disabled"> |
| <input type="reset" id="reset" value="reset" disabled="disabled"> |
| </div> |
| </div> |
| <!-- ========= END OF TOP NAVBAR ========= --> |
| <div class="skipNav"><a id="skip.navbar.top"> |
| <!-- --> |
| </a></div> |
| </nav> |
| </header> |
| <div class="flexContent"> |
| <main role="main"> |
| <!-- ======== START OF CLASS DATA ======== --> |
| <div class="header"> |
| <div class="subTitle"><span class="packageLabelInType">Package</span> <a href="package-summary.html">org.apache.calcite.plan.volcano</a></div> |
| <h1 title="Class AbstractConverter.ExpandConversionRule" class="title">Class AbstractConverter.ExpandConversionRule</h1> |
| </div> |
| <div class="contentContainer"> |
| <div class="inheritance" title="Inheritance Tree"><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">java.lang.Object</a> |
| <div class="inheritance"><a href="../RelOptRule.html" title="class in org.apache.calcite.plan">org.apache.calcite.plan.RelOptRule</a> |
| <div class="inheritance"><a href="../RelRule.html" title="class in org.apache.calcite.plan">org.apache.calcite.plan.RelRule</a><<a href="AbstractConverter.ExpandConversionRule.Config.html" title="interface in org.apache.calcite.plan.volcano">AbstractConverter.ExpandConversionRule.Config</a>> |
| <div class="inheritance">org.apache.calcite.plan.volcano.AbstractConverter.ExpandConversionRule</div> |
| </div> |
| </div> |
| </div> |
| <section class="description"> |
| <dl> |
| <dt>Enclosing class:</dt> |
| <dd><a href="AbstractConverter.html" title="class in org.apache.calcite.plan.volcano">AbstractConverter</a></dd> |
| </dl> |
| <hr> |
| <pre>public static class <span class="typeNameLabel">AbstractConverter.ExpandConversionRule</span> |
| extends <a href="../RelRule.html" title="class in org.apache.calcite.plan">RelRule</a><<a href="AbstractConverter.ExpandConversionRule.Config.html" title="interface in org.apache.calcite.plan.volcano">AbstractConverter.ExpandConversionRule.Config</a>></pre> |
| <div class="block">Rule that converts an <a href="AbstractConverter.html" title="class in org.apache.calcite.plan.volcano"><code>AbstractConverter</code></a> into a chain of |
| converters from the source relation to the target traits. |
| |
| <p>The chain produced is minimal: we have previously built the transitive |
| closure of the graph of conversions, so we choose the shortest chain. |
| |
| <p>Unlike the <a href="AbstractConverter.html" title="class in org.apache.calcite.plan.volcano"><code>AbstractConverter</code></a> they are replacing, these |
| converters are guaranteed to be able to convert any relation of their |
| calling convention. Furthermore, because they introduce subsets of other |
| calling conventions along the way, these subsets may spawn more efficient |
| conversions which are not generally applicable. |
| |
| <p>AbstractConverters can be messy, so they restrain themselves: they |
| don't fire if the target subset already has an implementation (with less |
| than infinite cost).</div> |
| </section> |
| <section class="summary"> |
| <ul class="blockList"> |
| <!-- ======== NESTED CLASS SUMMARY ======== --> |
| <li class="blockList"> |
| <section class="nestedClassSummary"><a id="nested.class.summary"> |
| <!-- --> |
| </a> |
| <h2>Nested Class Summary</h2> |
| <div class="memberSummary"> |
| <table> |
| <caption><span>Nested Classes</span><span class="tabEnd"> </span></caption> |
| <thead> |
| <tr> |
| <th class="colFirst" scope="col">Modifier and Type</th> |
| <th class="colSecond" scope="col">Class</th> |
| <th class="colLast" scope="col">Description</th> |
| </tr> |
| </thead> |
| <tbody> |
| <tr class="altColor"> |
| <td class="colFirst"><code>static interface </code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="AbstractConverter.ExpandConversionRule.Config.html" title="interface in org.apache.calcite.plan.volcano">AbstractConverter.ExpandConversionRule.Config</a></span></code></th> |
| <td class="colLast"> |
| <div class="block">Rule configuration.</div> |
| </td> |
| </tr> |
| </tbody> |
| </table> |
| </div> |
| <div class="inheritedList"> |
| <h2>Nested classes/interfaces inherited from class org.apache.calcite.plan.<a href="../RelRule.html" title="class in org.apache.calcite.plan">RelRule</a></h2> |
| <a id="nested.classes.inherited.from.class.org.apache.calcite.plan.RelRule"> |
| <!-- --> |
| </a><code><a href="../RelRule.Done.html" title="interface in org.apache.calcite.plan">RelRule.Done</a>, <a href="../RelRule.MatchHandler.html" title="interface in org.apache.calcite.plan">RelRule.MatchHandler</a><<a href="../RelRule.MatchHandler.html" title="type parameter in RelRule.MatchHandler">R</a> extends <a href="../RelOptRule.html" title="class in org.apache.calcite.plan">RelOptRule</a>>, <a href="../RelRule.OperandBuilder.html" title="interface in org.apache.calcite.plan">RelRule.OperandBuilder</a>, <a href="../RelRule.OperandDetailBuilder.html" title="interface in org.apache.calcite.plan">RelRule.OperandDetailBuilder</a><<a href="../RelRule.OperandDetailBuilder.html" title="type parameter in RelRule.OperandDetailBuilder">R</a> extends <a href="../../rel/RelNode.html" title="interface in org.apache.calcite.rel">RelNode</a>>, <a href="../RelRule.OperandTransform.html" title="interface in org.apache.calcite.plan">RelRule.OperandTransform</a></code></div> |
| <div class="inheritedList"> |
| <h2>Nested classes/interfaces inherited from class org.apache.calcite.plan.<a href="../RelOptRule.html" title="class in org.apache.calcite.plan">RelOptRule</a></h2> |
| <a id="nested.classes.inherited.from.class.org.apache.calcite.plan.RelOptRule"> |
| <!-- --> |
| </a><code><a href="../RelOptRule.ConverterRelOptRuleOperand.html" title="class in org.apache.calcite.plan">RelOptRule.ConverterRelOptRuleOperand</a></code></div> |
| </section> |
| </li> |
| <!-- =========== FIELD SUMMARY =========== --> |
| <li class="blockList"> |
| <section class="fieldSummary"><a id="field.summary"> |
| <!-- --> |
| </a> |
| <h2>Field Summary</h2> |
| <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>static <a href="AbstractConverter.ExpandConversionRule.html" title="class in org.apache.calcite.plan.volcano">AbstractConverter.ExpandConversionRule</a></code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#INSTANCE">INSTANCE</a></span></code></th> |
| <td class="colLast"> </td> |
| </tr> |
| </tbody> |
| </table> |
| </div> |
| <div class="inheritedList"> |
| <h3>Fields inherited from class org.apache.calcite.plan.<a href="../RelRule.html" title="class in org.apache.calcite.plan">RelRule</a></h3> |
| <a id="fields.inherited.from.class.org.apache.calcite.plan.RelRule"> |
| <!-- --> |
| </a><code><a href="../RelRule.html#config">config</a></code></div> |
| <div class="inheritedList"> |
| <h3>Fields inherited from class org.apache.calcite.plan.<a href="../RelOptRule.html" title="class in org.apache.calcite.plan">RelOptRule</a></h3> |
| <a id="fields.inherited.from.class.org.apache.calcite.plan.RelOptRule"> |
| <!-- --> |
| </a><code><a href="../RelOptRule.html#description">description</a>, <a href="../RelOptRule.html#operands">operands</a>, <a href="../RelOptRule.html#relBuilderFactory">relBuilderFactory</a></code></div> |
| </section> |
| </li> |
| <!-- ======== CONSTRUCTOR SUMMARY ======== --> |
| <li class="blockList"> |
| <section class="constructorSummary"><a id="constructor.summary"> |
| <!-- --> |
| </a> |
| <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.plan.volcano.AbstractConverter.ExpandConversionRule.Config)">ExpandConversionRule</a></span>​(<a href="AbstractConverter.ExpandConversionRule.Config.html" title="interface in org.apache.calcite.plan.volcano">AbstractConverter.ExpandConversionRule.Config</a> config)</code></th> |
| <td class="colLast"> |
| <div class="block">Creates an ExpandConversionRule.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code> </code></td> |
| <th class="colConstructorName" scope="row"><code><span class="memberNameLink"><a href="#%3Cinit%3E(org.apache.calcite.tools.RelBuilderFactory)">ExpandConversionRule</a></span>​(<a href="../../tools/RelBuilderFactory.html" title="interface in org.apache.calcite.tools">RelBuilderFactory</a> relBuilderFactory)</code></th> |
| <td class="colLast"> |
| <div class="block"><span class="deprecatedLabel">Deprecated.</span></div> |
| </td> |
| </tr> |
| </tbody> |
| </table> |
| </div> |
| </section> |
| </li> |
| <!-- ========== METHOD SUMMARY =========== --> |
| <li class="blockList"> |
| <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>void</code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#onMatch(org.apache.calcite.plan.RelOptRuleCall)">onMatch</a></span>​(<a href="../RelOptRuleCall.html" title="class in org.apache.calcite.plan">RelOptRuleCall</a> call)</code></th> |
| <td class="colLast"> |
| <div class="block">Receives notification about a rule match.</div> |
| </td> |
| </tr> |
| </tbody> |
| </table> |
| </div> |
| </div> |
| <div class="inheritedList"> |
| <h3>Methods inherited from class org.apache.calcite.plan.<a href="../RelOptRule.html" title="class in org.apache.calcite.plan">RelOptRule</a></h3> |
| <a id="methods.inherited.from.class.org.apache.calcite.plan.RelOptRule"> |
| <!-- --> |
| </a><code><a href="../RelOptRule.html#any()">any</a>, <a href="../RelOptRule.html#convert(org.apache.calcite.rel.RelNode,org.apache.calcite.plan.RelTrait)">convert</a>, <a href="../RelOptRule.html#convert(org.apache.calcite.rel.RelNode,org.apache.calcite.plan.RelTraitSet)">convert</a>, <a href="../RelOptRule.html#convertList(java.util.List,org.apache.calcite.plan.RelTrait)">convertList</a>, <a href="../RelOptRule.html#convertOperand(java.lang.Class,com.google.common.base.Predicate,org.apache.calcite.plan.RelTrait)">convertOperand</a>, <a href="../RelOptRule.html#convertOperand(java.lang.Class,java.util.function.Predicate,org.apache.calcite.plan.RelTrait)">convertOperand</a>, <a href="../RelOptRule.html#equals(java.lang.Object)">equals</a>, <a href="../RelOptRule.html#equals(org.apache.calcite.plan.RelOptRule)">equals</a>, <a href="../RelOptRule.html#getOperand()">getOperand</a>, <a href="../RelOptRule.html#getOperands()">getOperands</a>, <a href="../RelOptRule.html#getOutConvention()">getOutConvention</a>, <a href="../RelOptRule.html#getOutTrait()">getOutTrait</a>, <a href="../RelOptRule.html#hashCode()">hashCode</a>, <a href="../RelOptRule.html#matches(org.apache.calcite.plan.RelOptRuleCall)">matches</a>, <a href="../RelOptRule.html#none()">none</a>, <a href="../RelOptRule.html#operand(java.lang.Class,org.apache.calcite.plan.RelOptRuleOperandChildren)">operand</a>, <a href="../RelOptRule.html#operand(java.lang.Class,org.apache.calcite.plan.RelOptRuleOperand,org.apache.calcite.plan.RelOptRuleOperand...)">operand</a>, <a href="../RelOptRule.html#operand(java.lang.Class,org.apache.calcite.plan.RelTrait,com.google.common.base.Predicate,org.apache.calcite.plan.RelOptRuleOperandChildren)">operand</a>, <a href="../RelOptRule.html#operand(java.lang.Class,org.apache.calcite.plan.RelTrait,com.google.common.base.Predicate,org.apache.calcite.plan.RelOptRuleOperand,org.apache.calcite.plan.RelOptRuleOperand...)">operand</a>, <a href="../RelOptRule.html#operand(java.lang.Class,org.apache.calcite.plan.RelTrait,org.apache.calcite.plan.RelOptRuleOperandChildren)">operand</a>, <a href="../RelOptRule.html#operandJ(java.lang.Class,org.apache.calcite.plan.RelTrait,java.util.function.Predicate,org.apache.calcite.plan.RelOptRuleOperandChildren)">operandJ</a>, <a href="../RelOptRule.html#operandJ(java.lang.Class,org.apache.calcite.plan.RelTrait,java.util.function.Predicate,org.apache.calcite.plan.RelOptRuleOperand,org.apache.calcite.plan.RelOptRuleOperand...)">operandJ</a>, <a href="../RelOptRule.html#some(org.apache.calcite.plan.RelOptRuleOperand,org.apache.calcite.plan.RelOptRuleOperand...)">some</a>, <a href="../RelOptRule.html#toString()">toString</a>, <a href="../RelOptRule.html#unordered(org.apache.calcite.plan.RelOptRuleOperand,org.apache.calcite.plan.RelOptRuleOperand...)">unordered</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 =========== --> |
| <li class="blockList"> |
| <section class="fieldDetails"><a id="field.detail"> |
| <!-- --> |
| </a> |
| <h2>Field Details</h2> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <section class="detail"> |
| <h3><a id="INSTANCE">INSTANCE</a></h3> |
| <div class="memberSignature"><span class="modifiers">public static final</span> <span class="returnType"><a href="AbstractConverter.ExpandConversionRule.html" title="class in org.apache.calcite.plan.volcano">AbstractConverter.ExpandConversionRule</a></span> <span class="memberName">INSTANCE</span></div> |
| </section> |
| </li> |
| </ul> |
| </section> |
| </li> |
| <!-- ========= CONSTRUCTOR DETAIL ======== --> |
| <li class="blockList"> |
| <section class="constructorDetails"><a id="constructor.detail"> |
| <!-- --> |
| </a> |
| <h2>Constructor Details</h2> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <section class="detail"> |
| <h3><a id="<init>(org.apache.calcite.plan.volcano.AbstractConverter.ExpandConversionRule.Config)">ExpandConversionRule</a></h3> |
| <div class="memberSignature"><span class="modifiers">protected</span> <span class="memberName">ExpandConversionRule</span>​(<span class="arguments"><a href="AbstractConverter.ExpandConversionRule.Config.html" title="interface in org.apache.calcite.plan.volcano">AbstractConverter.ExpandConversionRule.Config</a> config)</span></div> |
| <div class="block">Creates an ExpandConversionRule.</div> |
| </section> |
| </li> |
| <li class="blockList"> |
| <section class="detail"> |
| <h3><a id="<init>(org.apache.calcite.tools.RelBuilderFactory)">ExpandConversionRule</a></h3> |
| <div class="memberSignature"><span class="annotations"><a href="https://docs.oracle.com/javase/9/docs/api/java/lang/Deprecated.html?is-external=true" title="class or interface in java.lang" class="externalLink">@Deprecated</a> |
| </span><span class="modifiers">public</span> <span class="memberName">ExpandConversionRule</span>​(<span class="arguments"><a href="../../tools/RelBuilderFactory.html" title="interface in org.apache.calcite.tools">RelBuilderFactory</a> relBuilderFactory)</span></div> |
| <div class="deprecationBlock"><span class="deprecatedLabel">Deprecated.</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="onMatch(org.apache.calcite.plan.RelOptRuleCall)">onMatch</a></h3> |
| <div class="memberSignature"><span class="modifiers">public</span> <span class="returnType">void</span> <span class="memberName">onMatch</span>​(<span class="arguments"><a href="../RelOptRuleCall.html" title="class in org.apache.calcite.plan">RelOptRuleCall</a> call)</span></div> |
| <div class="block"><span class="descfrmTypeLabel">Description copied from class: <code><a href="../RelOptRule.html#onMatch(org.apache.calcite.plan.RelOptRuleCall)">RelOptRule</a></code></span></div> |
| <div class="block">Receives notification about a rule match. At the time that this method is |
| called, <a href="../RelOptRuleCall.html#rels"><code>call.rels</code></a> holds the set of relational |
| expressions which match the operands to the rule; <code> |
| call.rels[0]</code> is the root expression. |
| |
| <p>Typically a rule would check that the nodes are valid matches, creates |
| a new expression, then calls back <a href="../RelOptRuleCall.html#transformTo(org.apache.calcite.rel.RelNode,java.util.Map,org.apache.calcite.plan.RelHintsPropagator)"><code>RelOptRuleCall.transformTo(org.apache.calcite.rel.RelNode, java.util.Map<org.apache.calcite.rel.RelNode, org.apache.calcite.rel.RelNode>, org.apache.calcite.plan.RelHintsPropagator)</code></a> to |
| register the expression.</p></div> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">Specified by:</span></dt> |
| <dd><code><a href="../RelOptRule.html#onMatch(org.apache.calcite.plan.RelOptRuleCall)">onMatch</a></code> in class <code><a href="../RelOptRule.html" title="class in org.apache.calcite.plan">RelOptRule</a></code></dd> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>call</code> - Rule call</dd> |
| <dt><span class="seeLabel">See Also:</span></dt> |
| <dd><a href="../RelOptRule.html#matches(org.apache.calcite.plan.RelOptRuleCall)"><code>RelOptRule.matches(RelOptRuleCall)</code></a></dd> |
| </dl> |
| </section> |
| </li> |
| </ul> |
| </section> |
| </li> |
| </ul> |
| </section> |
| </div> |
| <!-- ========= END OF CLASS DATA ========= --> |
| </main> |
| <footer role="contentinfo"> |
| <nav role="navigation"> |
| <!-- ======= START OF BOTTOM NAVBAR ====== --> |
| <div class="bottomNav"><a id="navbar.bottom"> |
| <!-- --> |
| </a> |
| <div class="skipNav"><a href="#skip.navbar.bottom" title="Skip navigation links">Skip navigation links</a></div> |
| <a id="navbar.bottom.firstrow"> |
| <!-- --> |
| </a> |
| <ul class="navList" title="Navigation"> |
| <li><a href="../../../../../index.html">Overview</a></li> |
| <li><a href="package-summary.html">Package</a></li> |
| <li class="navBarCell1Rev">Class</li> |
| <li><a href="package-tree.html">Tree</a></li> |
| <li><a href="../../../../../deprecated-list.html">Deprecated</a></li> |
| <li><a href="../../../../../index-all.html">Index</a></li> |
| <li><a href="../../../../../help-doc.html">Help</a></li> |
| </ul> |
| <div class="aboutLanguage"><b>Apache Calcite</b></div> |
| </div> |
| <div class="subNav"> |
| <div> |
| <ul class="subNavList"> |
| <li>Summary: </li> |
| <li><a href="#nested.class.summary">Nested</a> | </li> |
| <li><a href="#field.summary">Field</a> | </li> |
| <li><a href="#constructor.summary">Constr</a> | </li> |
| <li><a href="#method.summary">Method</a></li> |
| </ul> |
| <ul class="subNavList"> |
| <li>Detail: </li> |
| <li><a href="#field.detail">Field</a> | </li> |
| <li><a href="#constructor.detail">Constr</a> | </li> |
| <li><a href="#method.detail">Method</a></li> |
| </ul> |
| </div> |
| </div> |
| <a id="skip.navbar.bottom"> |
| <!-- --> |
| </a> |
| <!-- ======== END OF BOTTOM NAVBAR ======= --> |
| </nav> |
| <p class="legalCopy"><small>Copyright © 2012-2021 Apache Software Foundation. All Rights Reserved.</small></p> |
| </footer> |
| </div> |
| </div> |
| </body> |
| </html> |
