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<title>CassandraToEnumerableConverter (Apache Calcite API)</title>
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<div class="sub-title"><span class="package-label-in-type">Package</span>&nbsp;<a href="package-summary.html">org.apache.calcite.adapter.cassandra</a></div>
<h1 title="Class CassandraToEnumerableConverter" class="title">Class CassandraToEnumerableConverter</h1>
</div>
<div class="inheritance" title="Inheritance Tree"><a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Object.html" title="class or interface in java.lang" class="external-link">java.lang.Object</a>
<div class="inheritance"><a href="../../rel/AbstractRelNode.html" title="class in org.apache.calcite.rel">org.apache.calcite.rel.AbstractRelNode</a>
<div class="inheritance"><a href="../../rel/SingleRel.html" title="class in org.apache.calcite.rel">org.apache.calcite.rel.SingleRel</a>
<div class="inheritance"><a href="../../rel/convert/ConverterImpl.html" title="class in org.apache.calcite.rel.convert">org.apache.calcite.rel.convert.ConverterImpl</a>
<div class="inheritance">org.apache.calcite.adapter.cassandra.CassandraToEnumerableConverter</div>
</div>
</div>
</div>
</div>
<section class="class-description" id="class-description">
<dl class="notes">
<dt>All Implemented Interfaces:</dt>
<dd><code><a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Cloneable.html" title="class or interface in java.lang" class="external-link">Cloneable</a></code>, <code><a href="../enumerable/EnumerableRel.html" title="interface in org.apache.calcite.adapter.enumerable">EnumerableRel</a></code>, <code><a href="../../plan/RelOptNode.html" title="interface in org.apache.calcite.plan">RelOptNode</a></code>, <code><a href="../../rel/convert/Converter.html" title="interface in org.apache.calcite.rel.convert">Converter</a></code>, <code><a href="../../rel/PhysicalNode.html" title="interface in org.apache.calcite.rel">PhysicalNode</a></code>, <code><a href="../../rel/RelNode.html" title="interface in org.apache.calcite.rel">RelNode</a></code></dd>
</dl>
<hr>
<div class="type-signature"><span class="modifiers">public class </span><span class="element-name type-name-label">CassandraToEnumerableConverter</span>
<span class="extends-implements">extends <a href="../../rel/convert/ConverterImpl.html" title="class in org.apache.calcite.rel.convert">ConverterImpl</a>
implements <a href="../enumerable/EnumerableRel.html" title="interface in org.apache.calcite.adapter.enumerable">EnumerableRel</a></span></div>
<div class="block">Relational expression representing a scan of a table in a Cassandra data source.</div>
</section>
<section class="summary">
<ul class="summary-list">
<!-- ======== NESTED CLASS SUMMARY ======== -->
<li>
<section class="nested-class-summary" id="nested-class-summary">
<h2>Nested Class Summary</h2>
<div class="inherited-list">
<h2 id="nested-classes-inherited-from-class-org.apache.calcite.adapter.enumerable.EnumerableRel">Nested classes/interfaces inherited from interface&nbsp;org.apache.calcite.adapter.enumerable.<a href="../enumerable/EnumerableRel.html" title="interface in org.apache.calcite.adapter.enumerable">EnumerableRel</a></h2>
<code><a href="../enumerable/EnumerableRel.Prefer.html" title="enum in org.apache.calcite.adapter.enumerable">EnumerableRel.Prefer</a>, <a href="../enumerable/EnumerableRel.Result.html" title="class in org.apache.calcite.adapter.enumerable">EnumerableRel.Result</a></code></div>
<div class="inherited-list">
<h2 id="nested-classes-inherited-from-class-org.apache.calcite.rel.RelNode">Nested classes/interfaces inherited from interface&nbsp;org.apache.calcite.rel.<a href="../../rel/RelNode.html" title="interface in org.apache.calcite.rel">RelNode</a></h2>
<code><a href="../../rel/RelNode.Context.html" title="interface in org.apache.calcite.rel">RelNode.Context</a></code></div>
</section>
</li>
<!-- =========== FIELD SUMMARY =========== -->
<li>
<section class="field-summary" id="field-summary">
<h2>Field Summary</h2>
<div class="inherited-list">
<h3 id="fields-inherited-from-class-org.apache.calcite.rel.convert.ConverterImpl">Fields inherited from class&nbsp;org.apache.calcite.rel.convert.<a href="../../rel/convert/ConverterImpl.html" title="class in org.apache.calcite.rel.convert">ConverterImpl</a></h3>
<code><a href="../../rel/convert/ConverterImpl.html#inTraits">inTraits</a>, <a href="../../rel/convert/ConverterImpl.html#traitDef">traitDef</a></code></div>
<div class="inherited-list">
<h3 id="fields-inherited-from-class-org.apache.calcite.rel.SingleRel">Fields inherited from class&nbsp;org.apache.calcite.rel.<a href="../../rel/SingleRel.html" title="class in org.apache.calcite.rel">SingleRel</a></h3>
<code><a href="../../rel/SingleRel.html#input">input</a></code></div>
<div class="inherited-list">
<h3 id="fields-inherited-from-class-org.apache.calcite.rel.AbstractRelNode">Fields inherited from class&nbsp;org.apache.calcite.rel.<a href="../../rel/AbstractRelNode.html" title="class in org.apache.calcite.rel">AbstractRelNode</a></h3>
<code><a href="../../rel/AbstractRelNode.html#digest">digest</a>, <a href="../../rel/AbstractRelNode.html#id">id</a>, <a href="../../rel/AbstractRelNode.html#rowType">rowType</a>, <a href="../../rel/AbstractRelNode.html#traitSet">traitSet</a></code></div>
</section>
</li>
<!-- ======== CONSTRUCTOR SUMMARY ======== -->
<li>
<section class="constructor-summary" id="constructor-summary">
<h2>Constructor Summary</h2>
<div class="caption"><span>Constructors</span></div>
<div class="summary-table three-column-summary">
<div class="table-header col-first">Modifier</div>
<div class="table-header col-second">Constructor</div>
<div class="table-header col-last">Description</div>
<div class="col-first even-row-color"><code>protected </code></div>
<div class="col-constructor-name even-row-color"><code><a href="#%3Cinit%3E(org.apache.calcite.plan.RelOptCluster,org.apache.calcite.plan.RelTraitSet,org.apache.calcite.rel.RelNode)" class="member-name-link">CassandraToEnumerableConverter</a><wbr>(<a href="../../plan/RelOptCluster.html" title="class in org.apache.calcite.plan">RelOptCluster</a>&nbsp;cluster,
<a href="../../plan/RelTraitSet.html" title="class in org.apache.calcite.plan">RelTraitSet</a>&nbsp;traits,
<a href="../../rel/RelNode.html" title="interface in org.apache.calcite.rel">RelNode</a>&nbsp;input)</code></div>
<div class="col-last even-row-color">&nbsp;</div>
</div>
</section>
</li>
<!-- ========== METHOD SUMMARY =========== -->
<li>
<section class="method-summary" id="method-summary">
<h2>Method Summary</h2>
<div id="method-summary-table">
<div class="table-tabs" role="tablist" aria-orientation="horizontal"><button id="method-summary-table-tab0" role="tab" aria-selected="true" aria-controls="method-summary-table.tabpanel" tabindex="0" onkeydown="switchTab(event)" onclick="show('method-summary-table', 'method-summary-table', 3)" class="active-table-tab">All Methods</button><button id="method-summary-table-tab2" role="tab" aria-selected="false" aria-controls="method-summary-table.tabpanel" tabindex="-1" onkeydown="switchTab(event)" onclick="show('method-summary-table', 'method-summary-table-tab2', 3)" class="table-tab">Instance Methods</button><button id="method-summary-table-tab4" role="tab" aria-selected="false" aria-controls="method-summary-table.tabpanel" tabindex="-1" onkeydown="switchTab(event)" onclick="show('method-summary-table', 'method-summary-table-tab4', 3)" class="table-tab">Concrete Methods</button></div>
<div id="method-summary-table.tabpanel" role="tabpanel">
<div class="summary-table three-column-summary" aria-labelledby="method-summary-table-tab0">
<div class="table-header col-first">Modifier and Type</div>
<div class="table-header col-second">Method</div>
<div class="table-header col-last">Description</div>
<div class="col-first even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code>@Nullable <a href="../../plan/RelOptCost.html" title="interface in org.apache.calcite.plan">RelOptCost</a></code></div>
<div class="col-second even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code><a href="#computeSelfCost(org.apache.calcite.plan.RelOptPlanner,org.apache.calcite.rel.metadata.RelMetadataQuery)" class="member-name-link">computeSelfCost</a><wbr>(<a href="../../plan/RelOptPlanner.html" title="interface in org.apache.calcite.plan">RelOptPlanner</a>&nbsp;planner,
<a href="../../rel/metadata/RelMetadataQuery.html" title="class in org.apache.calcite.rel.metadata">RelMetadataQuery</a>&nbsp;mq)</code></div>
<div class="col-last even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4">
<div class="block">Returns the cost of this plan (not including children).</div>
</div>
<div class="col-first odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code><a href="../../rel/RelNode.html" title="interface in org.apache.calcite.rel">RelNode</a></code></div>
<div class="col-second odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code><a href="#copy(org.apache.calcite.plan.RelTraitSet,java.util.List)" class="member-name-link">copy</a><wbr>(<a href="../../plan/RelTraitSet.html" title="class in org.apache.calcite.plan">RelTraitSet</a>&nbsp;traitSet,
<a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/util/List.html" title="class or interface in java.util" class="external-link">List</a>&lt;<a href="../../rel/RelNode.html" title="interface in org.apache.calcite.rel">RelNode</a>&gt;&nbsp;inputs)</code></div>
<div class="col-last odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4">
<div class="block">Creates a copy of this relational expression, perhaps changing traits and
inputs.</div>
</div>
<div class="col-first even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code><a href="../enumerable/EnumerableRel.Result.html" title="class in org.apache.calcite.adapter.enumerable">EnumerableRel.Result</a></code></div>
<div class="col-second even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code><a href="#implement(org.apache.calcite.adapter.enumerable.EnumerableRelImplementor,org.apache.calcite.adapter.enumerable.EnumerableRel.Prefer)" class="member-name-link">implement</a><wbr>(<a href="../enumerable/EnumerableRelImplementor.html" title="class in org.apache.calcite.adapter.enumerable">EnumerableRelImplementor</a>&nbsp;implementor,
<a href="../enumerable/EnumerableRel.Prefer.html" title="enum in org.apache.calcite.adapter.enumerable">EnumerableRel.Prefer</a>&nbsp;pref)</code></div>
<div class="col-last even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4">
<div class="block">Creates a plan for this expression according to a calling convention.</div>
</div>
</div>
</div>
</div>
<div class="inherited-list">
<h3 id="methods-inherited-from-class-org.apache.calcite.rel.convert.ConverterImpl">Methods inherited from class&nbsp;org.apache.calcite.rel.convert.<a href="../../rel/convert/ConverterImpl.html" title="class in org.apache.calcite.rel.convert">ConverterImpl</a></h3>
<code><a href="../../rel/convert/ConverterImpl.html#cannotImplement()">cannotImplement</a>, <a href="../../rel/convert/ConverterImpl.html#getInputTraits()">getInputTraits</a>, <a href="../../rel/convert/ConverterImpl.html#getTraitDef()">getTraitDef</a></code></div>
<div class="inherited-list">
<h3 id="methods-inherited-from-class-org.apache.calcite.rel.SingleRel">Methods inherited from class&nbsp;org.apache.calcite.rel.<a href="../../rel/SingleRel.html" title="class in org.apache.calcite.rel">SingleRel</a></h3>
<code><a href="../../rel/SingleRel.html#childrenAccept(org.apache.calcite.rel.RelVisitor)">childrenAccept</a>, <a href="../../rel/SingleRel.html#deriveRowType()">deriveRowType</a>, <a href="../../rel/SingleRel.html#estimateRowCount(org.apache.calcite.rel.metadata.RelMetadataQuery)">estimateRowCount</a>, <a href="../../rel/SingleRel.html#explainTerms(org.apache.calcite.rel.RelWriter)">explainTerms</a>, <a href="../../rel/SingleRel.html#getInput()">getInput</a>, <a href="../../rel/SingleRel.html#getInputs()">getInputs</a>, <a href="../../rel/SingleRel.html#replaceInput(int,org.apache.calcite.rel.RelNode)">replaceInput</a></code></div>
<div class="inherited-list">
<h3 id="methods-inherited-from-class-org.apache.calcite.rel.AbstractRelNode">Methods inherited from class&nbsp;org.apache.calcite.rel.<a href="../../rel/AbstractRelNode.html" title="class in org.apache.calcite.rel">AbstractRelNode</a></h3>
<code><a href="../../rel/AbstractRelNode.html#accept(org.apache.calcite.rel.RelShuttle)">accept</a>, <a href="../../rel/AbstractRelNode.html#accept(org.apache.calcite.rex.RexShuttle)">accept</a>, <a href="../../rel/AbstractRelNode.html#collectVariablesSet(java.util.Set)">collectVariablesSet</a>, <a href="../../rel/AbstractRelNode.html#collectVariablesUsed(java.util.Set)">collectVariablesUsed</a>, <a href="../../rel/AbstractRelNode.html#deepEquals(java.lang.Object)">deepEquals</a>, <a href="../../rel/AbstractRelNode.html#deepHashCode()">deepHashCode</a>, <a href="../../rel/AbstractRelNode.html#equals(java.lang.Object)">equals</a>, <a href="../../rel/AbstractRelNode.html#explain(org.apache.calcite.rel.RelWriter)">explain</a>, <a href="../../rel/AbstractRelNode.html#getCluster()">getCluster</a>, <a href="../../rel/AbstractRelNode.html#getConvention()">getConvention</a>, <a href="../../rel/AbstractRelNode.html#getCorrelVariable()">getCorrelVariable</a>, <a href="../../rel/AbstractRelNode.html#getDescription()">getDescription</a>, <a href="../../rel/AbstractRelNode.html#getDigest()">getDigest</a>, <a href="../../rel/AbstractRelNode.html#getExpectedInputRowType(int)">getExpectedInputRowType</a>, <a href="../../rel/AbstractRelNode.html#getId()">getId</a>, <a href="../../rel/AbstractRelNode.html#getInput(int)">getInput</a>, <a href="../../rel/AbstractRelNode.html#getRelDigest()">getRelDigest</a>, <a href="../../rel/AbstractRelNode.html#getRelTypeName()">getRelTypeName</a>, <a href="../../rel/AbstractRelNode.html#getRowType()">getRowType</a>, <a href="../../rel/AbstractRelNode.html#getTable()">getTable</a>, <a href="../../rel/AbstractRelNode.html#getTraitSet()">getTraitSet</a>, <a href="../../rel/AbstractRelNode.html#getVariablesSet()">getVariablesSet</a>, <a href="../../rel/AbstractRelNode.html#hashCode()">hashCode</a>, <a href="../../rel/AbstractRelNode.html#isEnforcer()">isEnforcer</a>, <a href="../../rel/AbstractRelNode.html#isValid(org.apache.calcite.util.Litmus,org.apache.calcite.rel.RelNode.Context)">isValid</a>, <a href="../../rel/AbstractRelNode.html#metadata(java.lang.Class,org.apache.calcite.rel.metadata.RelMetadataQuery)">metadata</a>, <a href="../../rel/AbstractRelNode.html#onRegister(org.apache.calcite.plan.RelOptPlanner)">onRegister</a>, <a href="../../rel/AbstractRelNode.html#recomputeDigest()">recomputeDigest</a>, <a href="../../rel/AbstractRelNode.html#register(org.apache.calcite.plan.RelOptPlanner)">register</a>, <a href="../../rel/AbstractRelNode.html#sole(java.util.List)">sole</a>, <a href="../../rel/AbstractRelNode.html#toString()">toString</a></code></div>
<div class="inherited-list">
<h3 id="methods-inherited-from-class-java.lang.Object">Methods inherited from class&nbsp;java.lang.<a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Object.html" title="class or interface in java.lang" class="external-link">Object</a></h3>
<code><a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Object.html#clone()" title="class or interface in java.lang" class="external-link">clone</a>, <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Object.html#finalize()" title="class or interface in java.lang" class="external-link">finalize</a>, <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Object.html#getClass()" title="class or interface in java.lang" class="external-link">getClass</a>, <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Object.html#notify()" title="class or interface in java.lang" class="external-link">notify</a>, <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Object.html#notifyAll()" title="class or interface in java.lang" class="external-link">notifyAll</a>, <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Object.html#wait()" title="class or interface in java.lang" class="external-link">wait</a>, <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Object.html#wait(long)" title="class or interface in java.lang" class="external-link">wait</a>, <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Object.html#wait(long,int)" title="class or interface in java.lang" class="external-link">wait</a></code></div>
<div class="inherited-list">
<h3 id="methods-inherited-from-class-org.apache.calcite.rel.convert.Converter">Methods inherited from interface&nbsp;org.apache.calcite.rel.convert.<a href="../../rel/convert/Converter.html" title="interface in org.apache.calcite.rel.convert">Converter</a></h3>
<code><a href="../../rel/convert/Converter.html#getInput()">getInput</a></code></div>
<div class="inherited-list">
<h3 id="methods-inherited-from-class-org.apache.calcite.adapter.enumerable.EnumerableRel">Methods inherited from interface&nbsp;org.apache.calcite.adapter.enumerable.<a href="../enumerable/EnumerableRel.html" title="interface in org.apache.calcite.adapter.enumerable">EnumerableRel</a></h3>
<code><a href="../enumerable/EnumerableRel.html#deriveTraits(org.apache.calcite.plan.RelTraitSet,int)">deriveTraits</a>, <a href="../enumerable/EnumerableRel.html#getDeriveMode()">getDeriveMode</a>, <a href="../enumerable/EnumerableRel.html#passThroughTraits(org.apache.calcite.plan.RelTraitSet)">passThroughTraits</a></code></div>
<div class="inherited-list">
<h3 id="methods-inherited-from-class-org.apache.calcite.rel.PhysicalNode">Methods inherited from interface&nbsp;org.apache.calcite.rel.<a href="../../rel/PhysicalNode.html" title="interface in org.apache.calcite.rel">PhysicalNode</a></h3>
<code><a href="../../rel/PhysicalNode.html#derive(java.util.List)">derive</a>, <a href="../../rel/PhysicalNode.html#derive(org.apache.calcite.plan.RelTraitSet,int)">derive</a>, <a href="../../rel/PhysicalNode.html#passThrough(org.apache.calcite.plan.RelTraitSet)">passThrough</a></code></div>
<div class="inherited-list">
<h3 id="methods-inherited-from-class-org.apache.calcite.rel.RelNode">Methods inherited from interface&nbsp;org.apache.calcite.rel.<a href="../../rel/RelNode.html" title="interface in org.apache.calcite.rel">RelNode</a></h3>
<code><a href="../../rel/RelNode.html#accept(org.apache.calcite.rel.RelShuttle)">accept</a>, <a href="../../rel/RelNode.html#accept(org.apache.calcite.rex.RexShuttle)">accept</a>, <a href="../../rel/RelNode.html#childrenAccept(org.apache.calcite.rel.RelVisitor)">childrenAccept</a>, <a href="../../rel/RelNode.html#collectVariablesSet(java.util.Set)">collectVariablesSet</a>, <a href="../../rel/RelNode.html#collectVariablesUsed(java.util.Set)">collectVariablesUsed</a>, <a href="../../rel/RelNode.html#deepEquals(java.lang.Object)">deepEquals</a>, <a href="../../rel/RelNode.html#deepHashCode()">deepHashCode</a>, <a href="../../rel/RelNode.html#estimateRowCount(org.apache.calcite.rel.metadata.RelMetadataQuery)">estimateRowCount</a>, <a href="../../rel/RelNode.html#explain()">explain</a>, <a href="../../rel/RelNode.html#explain(org.apache.calcite.rel.RelWriter)">explain</a>, <a href="../../rel/RelNode.html#fieldIsNullable(int)">fieldIsNullable</a>, <a href="../../rel/RelNode.html#getConvention()">getConvention</a>, <a href="../../rel/RelNode.html#getCorrelVariable()">getCorrelVariable</a>, <a href="../../rel/RelNode.html#getDigest()">getDigest</a>, <a href="../../rel/RelNode.html#getExpectedInputRowType(int)">getExpectedInputRowType</a>, <a href="../../rel/RelNode.html#getInput(int)">getInput</a>, <a href="../../rel/RelNode.html#getInputs()">getInputs</a>, <a href="../../rel/RelNode.html#getRelDigest()">getRelDigest</a>, <a href="../../rel/RelNode.html#getRelTypeName()">getRelTypeName</a>, <a href="../../rel/RelNode.html#getRowType()">getRowType</a>, <a href="../../rel/RelNode.html#getTable()">getTable</a>, <a href="../../rel/RelNode.html#getVariablesSet()">getVariablesSet</a>, <a href="../../rel/RelNode.html#isEnforcer()">isEnforcer</a>, <a href="../../rel/RelNode.html#isValid(org.apache.calcite.util.Litmus,org.apache.calcite.rel.RelNode.Context)">isValid</a>, <a href="../../rel/RelNode.html#metadata(java.lang.Class,org.apache.calcite.rel.metadata.RelMetadataQuery)">metadata</a>, <a href="../../rel/RelNode.html#onRegister(org.apache.calcite.plan.RelOptPlanner)">onRegister</a>, <a href="../../rel/RelNode.html#recomputeDigest()">recomputeDigest</a>, <a href="../../rel/RelNode.html#register(org.apache.calcite.plan.RelOptPlanner)">register</a>, <a href="../../rel/RelNode.html#replaceInput(int,org.apache.calcite.rel.RelNode)">replaceInput</a></code></div>
<div class="inherited-list">
<h3 id="methods-inherited-from-class-org.apache.calcite.plan.RelOptNode">Methods inherited from interface&nbsp;org.apache.calcite.plan.<a href="../../plan/RelOptNode.html" title="interface in org.apache.calcite.plan">RelOptNode</a></h3>
<code><a href="../../plan/RelOptNode.html#getCluster()">getCluster</a>, <a href="../../plan/RelOptNode.html#getDescription()">getDescription</a>, <a href="../../plan/RelOptNode.html#getId()">getId</a>, <a href="../../plan/RelOptNode.html#getTraitSet()">getTraitSet</a></code></div>
</section>
</li>
</ul>
</section>
<section class="details">
<ul class="details-list">
<!-- ========= CONSTRUCTOR DETAIL ======== -->
<li>
<section class="constructor-details" id="constructor-detail">
<h2>Constructor Details</h2>
<ul class="member-list">
<li>
<section class="detail" id="&lt;init&gt;(org.apache.calcite.plan.RelOptCluster,org.apache.calcite.plan.RelTraitSet,org.apache.calcite.rel.RelNode)">
<h3>CassandraToEnumerableConverter</h3>
<div class="member-signature"><span class="modifiers">protected</span>&nbsp;<span class="element-name">CassandraToEnumerableConverter</span><wbr><span class="parameters">(<a href="../../plan/RelOptCluster.html" title="class in org.apache.calcite.plan">RelOptCluster</a>&nbsp;cluster,
<a href="../../plan/RelTraitSet.html" title="class in org.apache.calcite.plan">RelTraitSet</a>&nbsp;traits,
<a href="../../rel/RelNode.html" title="interface in org.apache.calcite.rel">RelNode</a>&nbsp;input)</span></div>
</section>
</li>
</ul>
</section>
</li>
<!-- ============ METHOD DETAIL ========== -->
<li>
<section class="method-details" id="method-detail">
<h2>Method Details</h2>
<ul class="member-list">
<li>
<section class="detail" id="copy(org.apache.calcite.plan.RelTraitSet,java.util.List)">
<h3>copy</h3>
<div class="member-signature"><span class="modifiers">public</span>&nbsp;<span class="return-type"><a href="../../rel/RelNode.html" title="interface in org.apache.calcite.rel">RelNode</a></span>&nbsp;<span class="element-name">copy</span><wbr><span class="parameters">(<a href="../../plan/RelTraitSet.html" title="class in org.apache.calcite.plan">RelTraitSet</a>&nbsp;traitSet,
<a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/util/List.html" title="class or interface in java.util" class="external-link">List</a>&lt;<a href="../../rel/RelNode.html" title="interface in org.apache.calcite.rel">RelNode</a>&gt;&nbsp;inputs)</span></div>
<div class="block"><span class="descfrm-type-label">Description copied from interface:&nbsp;<code><a href="../../rel/RelNode.html#copy(org.apache.calcite.plan.RelTraitSet,java.util.List)">RelNode</a></code></span></div>
<div class="block">Creates a copy of this relational expression, perhaps changing traits and
inputs.
<p>Sub-classes with other important attributes are encouraged to create
variants of this method with more parameters.</div>
<dl class="notes">
<dt>Specified by:</dt>
<dd><code><a href="../../rel/RelNode.html#copy(org.apache.calcite.plan.RelTraitSet,java.util.List)">copy</a></code>&nbsp;in interface&nbsp;<code><a href="../../rel/RelNode.html" title="interface in org.apache.calcite.rel">RelNode</a></code></dd>
<dt>Overrides:</dt>
<dd><code><a href="../../rel/AbstractRelNode.html#copy(org.apache.calcite.plan.RelTraitSet,java.util.List)">copy</a></code>&nbsp;in class&nbsp;<code><a href="../../rel/AbstractRelNode.html" title="class in org.apache.calcite.rel">AbstractRelNode</a></code></dd>
<dt>Parameters:</dt>
<dd><code>traitSet</code> - Trait set</dd>
<dd><code>inputs</code> - Inputs</dd>
<dt>Returns:</dt>
<dd>Copy of this relational expression, substituting traits and
inputs</dd>
</dl>
</section>
</li>
<li>
<section class="detail" id="computeSelfCost(org.apache.calcite.plan.RelOptPlanner,org.apache.calcite.rel.metadata.RelMetadataQuery)">
<h3>computeSelfCost</h3>
<div class="member-signature"><span class="modifiers">public</span>&nbsp;<span class="return-type">@Nullable <a href="../../plan/RelOptCost.html" title="interface in org.apache.calcite.plan">RelOptCost</a></span>&nbsp;<span class="element-name">computeSelfCost</span><wbr><span class="parameters">(<a href="../../plan/RelOptPlanner.html" title="interface in org.apache.calcite.plan">RelOptPlanner</a>&nbsp;planner,
<a href="../../rel/metadata/RelMetadataQuery.html" title="class in org.apache.calcite.rel.metadata">RelMetadataQuery</a>&nbsp;mq)</span></div>
<div class="block"><span class="descfrm-type-label">Description copied from interface:&nbsp;<code><a href="../../rel/RelNode.html#computeSelfCost(org.apache.calcite.plan.RelOptPlanner,org.apache.calcite.rel.metadata.RelMetadataQuery)">RelNode</a></code></span></div>
<div class="block">Returns the cost of this plan (not including children). The base
implementation throws an error; derived classes should override.
<p>NOTE jvs 29-Mar-2006: Don't call this method directly. Instead, use
<a href="../../rel/metadata/RelMetadataQuery.html#getNonCumulativeCost(org.apache.calcite.rel.RelNode)"><code>RelMetadataQuery.getNonCumulativeCost(org.apache.calcite.rel.RelNode)</code></a>, which gives plugins a
chance to override the rel's default ideas about cost.</div>
<dl class="notes">
<dt>Specified by:</dt>
<dd><code><a href="../../rel/RelNode.html#computeSelfCost(org.apache.calcite.plan.RelOptPlanner,org.apache.calcite.rel.metadata.RelMetadataQuery)">computeSelfCost</a></code>&nbsp;in interface&nbsp;<code><a href="../../rel/RelNode.html" title="interface in org.apache.calcite.rel">RelNode</a></code></dd>
<dt>Overrides:</dt>
<dd><code><a href="../../rel/convert/ConverterImpl.html#computeSelfCost(org.apache.calcite.plan.RelOptPlanner,org.apache.calcite.rel.metadata.RelMetadataQuery)">computeSelfCost</a></code>&nbsp;in class&nbsp;<code><a href="../../rel/convert/ConverterImpl.html" title="class in org.apache.calcite.rel.convert">ConverterImpl</a></code></dd>
<dt>Parameters:</dt>
<dd><code>planner</code> - Planner for cost calculation</dd>
<dd><code>mq</code> - Metadata query</dd>
<dt>Returns:</dt>
<dd>Cost of this plan (not including children)</dd>
</dl>
</section>
</li>
<li>
<section class="detail" id="implement(org.apache.calcite.adapter.enumerable.EnumerableRelImplementor,org.apache.calcite.adapter.enumerable.EnumerableRel.Prefer)">
<h3>implement</h3>
<div class="member-signature"><span class="modifiers">public</span>&nbsp;<span class="return-type"><a href="../enumerable/EnumerableRel.Result.html" title="class in org.apache.calcite.adapter.enumerable">EnumerableRel.Result</a></span>&nbsp;<span class="element-name">implement</span><wbr><span class="parameters">(<a href="../enumerable/EnumerableRelImplementor.html" title="class in org.apache.calcite.adapter.enumerable">EnumerableRelImplementor</a>&nbsp;implementor,
<a href="../enumerable/EnumerableRel.Prefer.html" title="enum in org.apache.calcite.adapter.enumerable">EnumerableRel.Prefer</a>&nbsp;pref)</span></div>
<div class="block"><span class="descfrm-type-label">Description copied from interface:&nbsp;<code><a href="../enumerable/EnumerableRel.html#implement(org.apache.calcite.adapter.enumerable.EnumerableRelImplementor,org.apache.calcite.adapter.enumerable.EnumerableRel.Prefer)">EnumerableRel</a></code></span></div>
<div class="block">Creates a plan for this expression according to a calling convention.</div>
<dl class="notes">
<dt>Specified by:</dt>
<dd><code><a href="../enumerable/EnumerableRel.html#implement(org.apache.calcite.adapter.enumerable.EnumerableRelImplementor,org.apache.calcite.adapter.enumerable.EnumerableRel.Prefer)">implement</a></code>&nbsp;in interface&nbsp;<code><a href="../enumerable/EnumerableRel.html" title="interface in org.apache.calcite.adapter.enumerable">EnumerableRel</a></code></dd>
<dt>Parameters:</dt>
<dd><code>implementor</code> - Implementor</dd>
<dd><code>pref</code> - Preferred representation for rows in result expression</dd>
<dt>Returns:</dt>
<dd>Plan for this expression according to a calling convention</dd>
</dl>
</section>
</li>
</ul>
</section>
</li>
</ul>
</section>
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