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<div class="subTitle"><span class="packageLabelInType">Package</span>&nbsp;<a href="package-summary.html">org.apache.calcite.plan.volcano</a></div>
<h2 title="Class VolcanoRuleCall" class="title">Class VolcanoRuleCall</h2>
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<ul class="inheritance">
<li>java.lang.Object</li>
<li>
<ul class="inheritance">
<li><a href="../RelOptRuleCall.html" title="class in org.apache.calcite.plan">org.apache.calcite.plan.RelOptRuleCall</a></li>
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<ul class="inheritance">
<li>org.apache.calcite.plan.volcano.VolcanoRuleCall</li>
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<dt>Direct Known Subclasses:</dt>
<dd><code><a href="VolcanoPlanner.DeferringRuleCall.html" title="class in org.apache.calcite.plan.volcano">VolcanoPlanner.DeferringRuleCall</a></code>, <code><a href="VolcanoRuleMatch.html" title="class in org.apache.calcite.plan.volcano">VolcanoRuleMatch</a></code></dd>
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<pre>public class <span class="typeNameLabel">VolcanoRuleCall</span>
extends <a href="../RelOptRuleCall.html" title="class in org.apache.calcite.plan">RelOptRuleCall</a></pre>
<div class="block"><code>VolcanoRuleCall</code> implements the <a href="../RelOptRuleCall.html" title="class in org.apache.calcite.plan"><code>RelOptRuleCall</code></a> interface
for VolcanoPlanner.</div>
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<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>private java.util.List&lt;<a href="../../rel/RelNode.html" title="interface in org.apache.calcite.rel">RelNode</a>&gt;</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#generatedRelList">generatedRelList</a></span></code></th>
<td class="colLast">
<div class="block">List of <a href="../../rel/RelNode.html" title="interface in org.apache.calcite.rel"><code>RelNode</code></a> generated by this call.</div>
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<tr class="rowColor">
<td class="colFirst"><code>protected <a href="VolcanoPlanner.html" title="class in org.apache.calcite.plan.volcano">VolcanoPlanner</a></code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#volcanoPlanner">volcanoPlanner</a></span></code></th>
<td class="colLast">&nbsp;</td>
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<h3>Fields inherited from class&nbsp;org.apache.calcite.plan.<a href="../RelOptRuleCall.html" title="class in org.apache.calcite.plan">RelOptRuleCall</a></h3>
<code><a href="../RelOptRuleCall.html#id">id</a>, <a href="../RelOptRuleCall.html#LOGGER">LOGGER</a>, <a href="../RelOptRuleCall.html#nodeInputs">nodeInputs</a>, <a href="../RelOptRuleCall.html#operand0">operand0</a>, <a href="../RelOptRuleCall.html#rels">rels</a>, <a href="../RelOptRuleCall.html#rule">rule</a></code></li>
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<th class="colFirst" scope="col">Modifier</th>
<th class="colSecond" scope="col">Constructor</th>
<th class="colLast" scope="col">Description</th>
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<td class="colFirst"><code>(package private)</code></td>
<th class="colConstructorName" scope="row"><code><span class="memberNameLink"><a href="#%3Cinit%3E(org.apache.calcite.plan.volcano.VolcanoPlanner,org.apache.calcite.plan.RelOptRuleOperand)">VolcanoRuleCall</a></span>&#8203;(<a href="VolcanoPlanner.html" title="class in org.apache.calcite.plan.volcano">VolcanoPlanner</a>&nbsp;planner,
<a href="../RelOptRuleOperand.html" title="class in org.apache.calcite.plan">RelOptRuleOperand</a>&nbsp;operand)</code></th>
<td class="colLast">
<div class="block">Creates a rule call.</div>
</td>
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<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.VolcanoPlanner,org.apache.calcite.plan.RelOptRuleOperand,org.apache.calcite.rel.RelNode%5B%5D,java.util.Map)">VolcanoRuleCall</a></span>&#8203;(<a href="VolcanoPlanner.html" title="class in org.apache.calcite.plan.volcano">VolcanoPlanner</a>&nbsp;planner,
<a href="../RelOptRuleOperand.html" title="class in org.apache.calcite.plan">RelOptRuleOperand</a>&nbsp;operand,
<a href="../../rel/RelNode.html" title="interface in org.apache.calcite.rel">RelNode</a>[]&nbsp;rels,
java.util.Map&lt;<a href="../../rel/RelNode.html" title="interface in org.apache.calcite.rel">RelNode</a>,&#8203;java.util.List&lt;<a href="../../rel/RelNode.html" title="interface in org.apache.calcite.rel">RelNode</a>&gt;&gt;&nbsp;nodeInputs)</code></th>
<td class="colLast">
<div class="block">Creates a rule call, internal, with array to hold bindings.</div>
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<td class="colFirst"><code>(package private) void</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#match(org.apache.calcite.rel.RelNode)">match</a></span>&#8203;(<a href="../../rel/RelNode.html" title="interface in org.apache.calcite.rel">RelNode</a>&nbsp;rel)</code></th>
<td class="colLast">
<div class="block">Applies this rule, with a given relational expression in the first slot.</div>
</td>
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<tr id="i1" class="rowColor">
<td class="colFirst"><code>private void</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#matchRecurse(int)">matchRecurse</a></span>&#8203;(int&nbsp;solve)</code></th>
<td class="colLast">
<div class="block">Recursively matches operands above a given solve order.</div>
</td>
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<tr id="i2" class="altColor">
<td class="colFirst"><code>protected void</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#onMatch()">onMatch</a></span>()</code></th>
<td class="colLast">
<div class="block">Called when all operands have matched.</div>
</td>
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<tr id="i3" class="rowColor">
<td class="colFirst"><code>void</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#transformTo(org.apache.calcite.rel.RelNode,java.util.Map)">transformTo</a></span>&#8203;(<a href="../../rel/RelNode.html" title="interface in org.apache.calcite.rel">RelNode</a>&nbsp;rel,
java.util.Map&lt;<a href="../../rel/RelNode.html" title="interface in org.apache.calcite.rel">RelNode</a>,&#8203;<a href="../../rel/RelNode.html" title="interface in org.apache.calcite.rel">RelNode</a>&gt;&nbsp;equiv)</code></th>
<td class="colLast">
<div class="block">Registers that a rule has produced an equivalent relational expression.</div>
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<h3>Methods inherited from class&nbsp;org.apache.calcite.plan.<a href="../RelOptRuleCall.html" title="class in org.apache.calcite.plan">RelOptRuleCall</a></h3>
<code><a href="../RelOptRuleCall.html#builder()">builder</a>, <a href="../RelOptRuleCall.html#getChildRels(org.apache.calcite.rel.RelNode)">getChildRels</a>, <a href="../RelOptRuleCall.html#getMetadataQuery()">getMetadataQuery</a>, <a href="../RelOptRuleCall.html#getOperand0()">getOperand0</a>, <a href="../RelOptRuleCall.html#getParents()">getParents</a>, <a href="../RelOptRuleCall.html#getPlanner()">getPlanner</a>, <a href="../RelOptRuleCall.html#getRelList()">getRelList</a>, <a href="../RelOptRuleCall.html#getRels()">getRels</a>, <a href="../RelOptRuleCall.html#getRule()">getRule</a>, <a href="../RelOptRuleCall.html#rel(int)">rel</a>, <a href="../RelOptRuleCall.html#setChildRels(org.apache.calcite.rel.RelNode,java.util.List)">setChildRels</a>, <a href="../RelOptRuleCall.html#transformTo(org.apache.calcite.rel.RelNode)">transformTo</a></code></li>
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<h3>Methods inherited from class&nbsp;java.lang.Object</h3>
<code>clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait</code></li>
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<h4>volcanoPlanner</h4>
<pre>protected final&nbsp;<a href="VolcanoPlanner.html" title="class in org.apache.calcite.plan.volcano">VolcanoPlanner</a> volcanoPlanner</pre>
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<h4>generatedRelList</h4>
<pre>private&nbsp;java.util.List&lt;<a href="../../rel/RelNode.html" title="interface in org.apache.calcite.rel">RelNode</a>&gt; generatedRelList</pre>
<div class="block">List of <a href="../../rel/RelNode.html" title="interface in org.apache.calcite.rel"><code>RelNode</code></a> generated by this call. For debugging purposes.</div>
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<h3>Constructor Detail</h3>
<a id="&lt;init&gt;(org.apache.calcite.plan.volcano.VolcanoPlanner,org.apache.calcite.plan.RelOptRuleOperand,org.apache.calcite.rel.RelNode[],java.util.Map)">
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<h4>VolcanoRuleCall</h4>
<pre>protected&nbsp;VolcanoRuleCall&#8203;(<a href="VolcanoPlanner.html" title="class in org.apache.calcite.plan.volcano">VolcanoPlanner</a>&nbsp;planner,
<a href="../RelOptRuleOperand.html" title="class in org.apache.calcite.plan">RelOptRuleOperand</a>&nbsp;operand,
<a href="../../rel/RelNode.html" title="interface in org.apache.calcite.rel">RelNode</a>[]&nbsp;rels,
java.util.Map&lt;<a href="../../rel/RelNode.html" title="interface in org.apache.calcite.rel">RelNode</a>,&#8203;java.util.List&lt;<a href="../../rel/RelNode.html" title="interface in org.apache.calcite.rel">RelNode</a>&gt;&gt;&nbsp;nodeInputs)</pre>
<div class="block">Creates a rule call, internal, with array to hold bindings.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>planner</code> - Planner</dd>
<dd><code>operand</code> - First operand of the rule</dd>
<dd><code>rels</code> - Array which will hold the matched relational expressions</dd>
<dd><code>nodeInputs</code> - For each node which matched with <code>matchAnyChildren</code>
= true, a list of the node's inputs</dd>
</dl>
</li>
</ul>
<a id="&lt;init&gt;(org.apache.calcite.plan.volcano.VolcanoPlanner,org.apache.calcite.plan.RelOptRuleOperand)">
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<h4>VolcanoRuleCall</h4>
<pre>VolcanoRuleCall&#8203;(<a href="VolcanoPlanner.html" title="class in org.apache.calcite.plan.volcano">VolcanoPlanner</a>&nbsp;planner,
<a href="../RelOptRuleOperand.html" title="class in org.apache.calcite.plan">RelOptRuleOperand</a>&nbsp;operand)</pre>
<div class="block">Creates a rule call.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>planner</code> - Planner</dd>
<dd><code>operand</code> - First operand of the rule</dd>
</dl>
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<h4>transformTo</h4>
<pre class="methodSignature">public&nbsp;void&nbsp;transformTo&#8203;(<a href="../../rel/RelNode.html" title="interface in org.apache.calcite.rel">RelNode</a>&nbsp;rel,
java.util.Map&lt;<a href="../../rel/RelNode.html" title="interface in org.apache.calcite.rel">RelNode</a>,&#8203;<a href="../../rel/RelNode.html" title="interface in org.apache.calcite.rel">RelNode</a>&gt;&nbsp;equiv)</pre>
<div class="block"><span class="descfrmTypeLabel">Description copied from class:&nbsp;<code><a href="../RelOptRuleCall.html#transformTo(org.apache.calcite.rel.RelNode,java.util.Map)">RelOptRuleCall</a></code></span></div>
<div class="block">Registers that a rule has produced an equivalent relational expression.
<p>Called by the rule whenever it finds a match. The implementation of
this method guarantees that the original relational expression (that is,
<code>this.rels[0]</code>) has its traits propagated to the new
relational expression (<code>rel</code>) and its unregistered children.
Any trait not specifically set in the RelTraitSet returned by <code>
rel.getTraits()</code> will be copied from <code>
this.rels[0].getTraitSet()</code>.</div>
<dl>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code><a href="../RelOptRuleCall.html#transformTo(org.apache.calcite.rel.RelNode,java.util.Map)">transformTo</a></code>&nbsp;in class&nbsp;<code><a href="../RelOptRuleCall.html" title="class in org.apache.calcite.plan">RelOptRuleCall</a></code></dd>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>rel</code> - Relational expression equivalent to the root relational
expression of the rule call, <code>call.rels(0)</code></dd>
<dd><code>equiv</code> - Map of other equivalences</dd>
</dl>
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<h4>onMatch</h4>
<pre class="methodSignature">protected&nbsp;void&nbsp;onMatch()</pre>
<div class="block">Called when all operands have matched.</div>
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<h4>match</h4>
<pre class="methodSignature">void&nbsp;match&#8203;(<a href="../../rel/RelNode.html" title="interface in org.apache.calcite.rel">RelNode</a>&nbsp;rel)</pre>
<div class="block">Applies this rule, with a given relational expression in the first slot.</div>
</li>
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<a id="matchRecurse(int)">
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<h4>matchRecurse</h4>
<pre class="methodSignature">private&nbsp;void&nbsp;matchRecurse&#8203;(int&nbsp;solve)</pre>
<div class="block">Recursively matches operands above a given solve order.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>solve</code> - Solve order of operand (&gt; 0 and &le; the operand count)</dd>
</dl>
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