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| <div class="subTitle"><span class="packageLabelInType">Package</span> <a href="package-summary.html">org.apache.calcite.rex</a></div> |
| <h2 title="Class RexAnalyzer" class="title">Class RexAnalyzer</h2> |
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| <li>java.lang.Object</li> |
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| <pre>public class <span class="typeNameLabel">RexAnalyzer</span> |
| extends java.lang.Object</pre> |
| <div class="block">Analyzes an expression, figures out what are the unbound variables, |
| assigns a variety of values to each unbound variable, and evaluates |
| the expression.</div> |
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| <th class="colFirst" scope="col">Modifier and Type</th> |
| <th class="colSecond" scope="col">Class</th> |
| <th class="colLast" scope="col">Description</th> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>private static class </code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="RexAnalyzer.VariableCollector.html" title="class in org.apache.calcite.rex">RexAnalyzer.VariableCollector</a></span></code></th> |
| <td class="colLast"> |
| <div class="block">Collects the variables (or other bindable sites) in an expression, and |
| counts features (such as CAST) that <a href="RexInterpreter.html" title="class in org.apache.calcite.rex"><code>RexInterpreter</code></a> cannot |
| handle.</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><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="#e">e</a></span></code></th> |
| <td class="colLast"> </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code>int</code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#unsupportedCount">unsupportedCount</a></span></code></th> |
| <td class="colLast"> </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>java.util.List<<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="#variables">variables</a></span></code></th> |
| <td class="colLast"> </td> |
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| <th class="colFirst" scope="col">Constructor</th> |
| <th class="colLast" scope="col">Description</th> |
| </tr> |
| <tr class="altColor"> |
| <th class="colConstructorName" scope="row"><code><span class="memberNameLink"><a href="#%3Cinit%3E(org.apache.calcite.rex.RexNode,org.apache.calcite.plan.RelOptPredicateList)">RexAnalyzer</a></span>​(<a href="RexNode.html" title="class in org.apache.calcite.rex">RexNode</a> e, |
| <a href="../plan/RelOptPredicateList.html" title="class in org.apache.calcite.plan">RelOptPredicateList</a> predicates)</code></th> |
| <td class="colLast"> |
| <div class="block">Creates a RexAnalyzer.</div> |
| </td> |
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| <tr> |
| <th class="colFirst" scope="col">Modifier and Type</th> |
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| <tr id="i0" class="altColor"> |
| <td class="colFirst"><code>java.lang.Iterable<java.util.Map<<a href="RexNode.html" title="class in org.apache.calcite.rex">RexNode</a>,​java.lang.Comparable>></code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#assignments()">assignments</a></span>()</code></th> |
| <td class="colLast"> |
| <div class="block">Generates a map of variables and lists of values that could be assigned |
| to them.</div> |
| </td> |
| </tr> |
| <tr id="i1" class="rowColor"> |
| <td class="colFirst"><code>private static java.util.List<java.lang.Comparable></code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#getComparables(org.apache.calcite.rex.RexNode)">getComparables</a></span>​(<a href="RexNode.html" title="class in org.apache.calcite.rex">RexNode</a> variable)</code></th> |
| <td class="colLast"> </td> |
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| <h3>Methods inherited from class java.lang.Object</h3> |
| <code>clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait</code></li> |
| </ul> |
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| <h4>e</h4> |
| <pre>public final <a href="RexNode.html" title="class in org.apache.calcite.rex">RexNode</a> e</pre> |
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| <h4>variables</h4> |
| <pre>public final java.util.List<<a href="RexNode.html" title="class in org.apache.calcite.rex">RexNode</a>> variables</pre> |
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| <h4>unsupportedCount</h4> |
| <pre>public final int unsupportedCount</pre> |
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| <h3>Constructor Detail</h3> |
| <a id="<init>(org.apache.calcite.rex.RexNode,org.apache.calcite.plan.RelOptPredicateList)"> |
| <!-- --> |
| </a> |
| <ul class="blockListLast"> |
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| <h4>RexAnalyzer</h4> |
| <pre>public RexAnalyzer​(<a href="RexNode.html" title="class in org.apache.calcite.rex">RexNode</a> e, |
| <a href="../plan/RelOptPredicateList.html" title="class in org.apache.calcite.plan">RelOptPredicateList</a> predicates)</pre> |
| <div class="block">Creates a RexAnalyzer.</div> |
| </li> |
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| <h4>assignments</h4> |
| <pre class="methodSignature">public java.lang.Iterable<java.util.Map<<a href="RexNode.html" title="class in org.apache.calcite.rex">RexNode</a>,​java.lang.Comparable>> assignments()</pre> |
| <div class="block">Generates a map of variables and lists of values that could be assigned |
| to them.</div> |
| </li> |
| </ul> |
| <a id="getComparables(org.apache.calcite.rex.RexNode)"> |
| <!-- --> |
| </a> |
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| <h4>getComparables</h4> |
| <pre class="methodSignature">private static java.util.List<java.lang.Comparable> getComparables​(<a href="RexNode.html" title="class in org.apache.calcite.rex">RexNode</a> variable)</pre> |
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