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<div class="subTitle"><span class="packageLabelInType">Package</span>&nbsp;<a href="package-summary.html">org.apache.calcite.adapter.elasticsearch</a></div>
<h2 title="Class PredicateAnalyzer.Visitor" class="title">Class PredicateAnalyzer.Visitor</h2>
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<ul class="inheritance">
<li>java.lang.Object</li>
<li>
<ul class="inheritance">
<li><a href="../../rex/RexVisitorImpl.html" title="class in org.apache.calcite.rex">org.apache.calcite.rex.RexVisitorImpl</a>&lt;<a href="PredicateAnalyzer.Expression.html" title="interface in org.apache.calcite.adapter.elasticsearch">PredicateAnalyzer.Expression</a>&gt;</li>
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<li>org.apache.calcite.adapter.elasticsearch.PredicateAnalyzer.Visitor</li>
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<dt>All Implemented Interfaces:</dt>
<dd><code><a href="../../rex/RexVisitor.html" title="interface in org.apache.calcite.rex">RexVisitor</a>&lt;<a href="PredicateAnalyzer.Expression.html" title="interface in org.apache.calcite.adapter.elasticsearch">PredicateAnalyzer.Expression</a>&gt;</code></dd>
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<dd><a href="PredicateAnalyzer.html" title="class in org.apache.calcite.adapter.elasticsearch">PredicateAnalyzer</a></dd>
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<pre>private static class <span class="typeNameLabel">PredicateAnalyzer.Visitor</span>
extends <a href="../../rex/RexVisitorImpl.html" title="class in org.apache.calcite.rex">RexVisitorImpl</a>&lt;<a href="PredicateAnalyzer.Expression.html" title="interface in org.apache.calcite.adapter.elasticsearch">PredicateAnalyzer.Expression</a>&gt;</pre>
<div class="block">Traverses <a href="../../rex/RexNode.html" title="class in org.apache.calcite.rex"><code>RexNode</code></a> tree and builds ES query.</div>
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<td class="colFirst"><code>private static class&nbsp;</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="PredicateAnalyzer.Visitor.SwapResult.html" title="class in org.apache.calcite.adapter.elasticsearch">PredicateAnalyzer.Visitor.SwapResult</a></span></code></th>
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<div class="block">Holder class for a pair of expressions.</div>
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<h3>Fields inherited from class&nbsp;org.apache.calcite.rex.<a href="../../rex/RexVisitorImpl.html" title="class in org.apache.calcite.rex">RexVisitorImpl</a></h3>
<code><a href="../../rex/RexVisitorImpl.html#deep">deep</a></code></li>
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<td class="colFirst"><code>private </code></td>
<th class="colConstructorName" scope="row"><code><span class="memberNameLink"><a href="#%3Cinit%3E()">Visitor</a></span>()</code></th>
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<td class="colFirst"><code>private <a href="PredicateAnalyzer.QueryExpression.html" title="class in org.apache.calcite.adapter.elasticsearch">PredicateAnalyzer.QueryExpression</a></code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#andOr(org.apache.calcite.rex.RexCall)">andOr</a></span>&#8203;(<a href="../../rex/RexCall.html" title="class in org.apache.calcite.rex">RexCall</a>&nbsp;call)</code></th>
<td class="colLast">&nbsp;</td>
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<td class="colFirst"><code>private <a href="PredicateAnalyzer.QueryExpression.html" title="class in org.apache.calcite.adapter.elasticsearch">PredicateAnalyzer.QueryExpression</a></code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#binary(org.apache.calcite.rex.RexCall)">binary</a></span>&#8203;(<a href="../../rex/RexCall.html" title="class in org.apache.calcite.rex">RexCall</a>&nbsp;call)</code></th>
<td class="colLast">
<div class="block">Process a call which is a binary operation, transforming into an equivalent
query expression.</div>
</td>
</tr>
<tr id="i2" class="altColor">
<td class="colFirst"><code>private static java.lang.String</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#convertQueryString(java.util.List,org.apache.calcite.adapter.elasticsearch.PredicateAnalyzer.Expression)">convertQueryString</a></span>&#8203;(java.util.List&lt;<a href="PredicateAnalyzer.Expression.html" title="interface in org.apache.calcite.adapter.elasticsearch">PredicateAnalyzer.Expression</a>&gt;&nbsp;fields,
<a href="PredicateAnalyzer.Expression.html" title="interface in org.apache.calcite.adapter.elasticsearch">PredicateAnalyzer.Expression</a>&nbsp;query)</code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr id="i3" class="rowColor">
<td class="colFirst"><code>private static <a href="PredicateAnalyzer.LiteralExpression.html" title="class in org.apache.calcite.adapter.elasticsearch">PredicateAnalyzer.LiteralExpression</a></code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#expressAsLiteral(org.apache.calcite.adapter.elasticsearch.PredicateAnalyzer.Expression)">expressAsLiteral</a></span>&#8203;(<a href="PredicateAnalyzer.Expression.html" title="interface in org.apache.calcite.adapter.elasticsearch">PredicateAnalyzer.Expression</a>&nbsp;exp)</code></th>
<td class="colLast">
<div class="block">Try to convert a generic expression into a literal expression.</div>
</td>
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<tr id="i4" class="altColor">
<td class="colFirst"><code>private static boolean</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#isColumn(org.apache.calcite.adapter.elasticsearch.PredicateAnalyzer.Expression,org.apache.calcite.rex.RexNode,java.lang.String,boolean)">isColumn</a></span>&#8203;(<a href="PredicateAnalyzer.Expression.html" title="interface in org.apache.calcite.adapter.elasticsearch">PredicateAnalyzer.Expression</a>&nbsp;exp,
<a href="../../rex/RexNode.html" title="class in org.apache.calcite.rex">RexNode</a>&nbsp;node,
java.lang.String&nbsp;columnName,
boolean&nbsp;throwException)</code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr id="i5" class="rowColor">
<td class="colFirst"><code>private <a href="PredicateAnalyzer.QueryExpression.html" title="class in org.apache.calcite.adapter.elasticsearch">PredicateAnalyzer.QueryExpression</a></code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#postfix(org.apache.calcite.rex.RexCall)">postfix</a></span>&#8203;(<a href="../../rex/RexCall.html" title="class in org.apache.calcite.rex">RexCall</a>&nbsp;call)</code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr id="i6" class="altColor">
<td class="colFirst"><code>private <a href="PredicateAnalyzer.QueryExpression.html" title="class in org.apache.calcite.adapter.elasticsearch">PredicateAnalyzer.QueryExpression</a></code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#prefix(org.apache.calcite.rex.RexCall)">prefix</a></span>&#8203;(<a href="../../rex/RexCall.html" title="class in org.apache.calcite.rex">RexCall</a>&nbsp;call)</code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr id="i7" class="rowColor">
<td class="colFirst"><code>private boolean</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#supportedRexCall(org.apache.calcite.rex.RexCall)">supportedRexCall</a></span>&#8203;(<a href="../../rex/RexCall.html" title="class in org.apache.calcite.rex">RexCall</a>&nbsp;call)</code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr id="i8" class="altColor">
<td class="colFirst"><code>private static <a href="PredicateAnalyzer.Visitor.SwapResult.html" title="class in org.apache.calcite.adapter.elasticsearch">PredicateAnalyzer.Visitor.SwapResult</a></code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#swap(org.apache.calcite.adapter.elasticsearch.PredicateAnalyzer.Expression,org.apache.calcite.adapter.elasticsearch.PredicateAnalyzer.Expression)">swap</a></span>&#8203;(<a href="PredicateAnalyzer.Expression.html" title="interface in org.apache.calcite.adapter.elasticsearch">PredicateAnalyzer.Expression</a>&nbsp;left,
<a href="PredicateAnalyzer.Expression.html" title="interface in org.apache.calcite.adapter.elasticsearch">PredicateAnalyzer.Expression</a>&nbsp;right)</code></th>
<td class="colLast">
<div class="block">Swap order of operands such that the literal expression is always on the right.</div>
</td>
</tr>
<tr id="i9" class="rowColor">
<td class="colFirst"><code>private <a href="PredicateAnalyzer.CastExpression.html" title="class in org.apache.calcite.adapter.elasticsearch">PredicateAnalyzer.CastExpression</a></code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#toCastExpression(org.apache.calcite.rex.RexCall)">toCastExpression</a></span>&#8203;(<a href="../../rex/RexCall.html" title="class in org.apache.calcite.rex">RexCall</a>&nbsp;call)</code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr id="i10" class="altColor">
<td class="colFirst"><code>private static <a href="PredicateAnalyzer.NamedFieldExpression.html" title="class in org.apache.calcite.adapter.elasticsearch">PredicateAnalyzer.NamedFieldExpression</a></code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#toNamedField(org.apache.calcite.rex.RexLiteral)">toNamedField</a></span>&#8203;(<a href="../../rex/RexLiteral.html" title="class in org.apache.calcite.rex">RexLiteral</a>&nbsp;literal)</code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr id="i11" class="rowColor">
<td class="colFirst"><code><a href="PredicateAnalyzer.Expression.html" title="interface in org.apache.calcite.adapter.elasticsearch">PredicateAnalyzer.Expression</a></code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#visitCall(org.apache.calcite.rex.RexCall)">visitCall</a></span>&#8203;(<a href="../../rex/RexCall.html" title="class in org.apache.calcite.rex">RexCall</a>&nbsp;call)</code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr id="i12" class="altColor">
<td class="colFirst"><code><a href="PredicateAnalyzer.Expression.html" title="interface in org.apache.calcite.adapter.elasticsearch">PredicateAnalyzer.Expression</a></code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#visitInputRef(org.apache.calcite.rex.RexInputRef)">visitInputRef</a></span>&#8203;(<a href="../../rex/RexInputRef.html" title="class in org.apache.calcite.rex">RexInputRef</a>&nbsp;inputRef)</code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr id="i13" class="rowColor">
<td class="colFirst"><code><a href="PredicateAnalyzer.Expression.html" title="interface in org.apache.calcite.adapter.elasticsearch">PredicateAnalyzer.Expression</a></code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#visitLiteral(org.apache.calcite.rex.RexLiteral)">visitLiteral</a></span>&#8203;(<a href="../../rex/RexLiteral.html" title="class in org.apache.calcite.rex">RexLiteral</a>&nbsp;literal)</code></th>
<td class="colLast">&nbsp;</td>
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<h3>Methods inherited from class&nbsp;org.apache.calcite.rex.<a href="../../rex/RexVisitorImpl.html" title="class in org.apache.calcite.rex">RexVisitorImpl</a></h3>
<code><a href="../../rex/RexVisitorImpl.html#visitArrayAnd(org.apache.calcite.rex.RexVisitor,java.util.List)">visitArrayAnd</a>, <a href="../../rex/RexVisitorImpl.html#visitArrayOr(org.apache.calcite.rex.RexVisitor,java.util.List)">visitArrayOr</a>, <a href="../../rex/RexVisitorImpl.html#visitCorrelVariable(org.apache.calcite.rex.RexCorrelVariable)">visitCorrelVariable</a>, <a href="../../rex/RexVisitorImpl.html#visitDynamicParam(org.apache.calcite.rex.RexDynamicParam)">visitDynamicParam</a>, <a href="../../rex/RexVisitorImpl.html#visitFieldAccess(org.apache.calcite.rex.RexFieldAccess)">visitFieldAccess</a>, <a href="../../rex/RexVisitorImpl.html#visitLocalRef(org.apache.calcite.rex.RexLocalRef)">visitLocalRef</a>, <a href="../../rex/RexVisitorImpl.html#visitOver(org.apache.calcite.rex.RexOver)">visitOver</a>, <a href="../../rex/RexVisitorImpl.html#visitPatternFieldRef(org.apache.calcite.rex.RexPatternFieldRef)">visitPatternFieldRef</a>, <a href="../../rex/RexVisitorImpl.html#visitRangeRef(org.apache.calcite.rex.RexRangeRef)">visitRangeRef</a>, <a href="../../rex/RexVisitorImpl.html#visitSubQuery(org.apache.calcite.rex.RexSubQuery)">visitSubQuery</a>, <a href="../../rex/RexVisitorImpl.html#visitTableInputRef(org.apache.calcite.rex.RexTableInputRef)">visitTableInputRef</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>Visitor</h4>
<pre>private&nbsp;Visitor()</pre>
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<h4>visitInputRef</h4>
<pre class="methodSignature">public&nbsp;<a href="PredicateAnalyzer.Expression.html" title="interface in org.apache.calcite.adapter.elasticsearch">PredicateAnalyzer.Expression</a>&nbsp;visitInputRef&#8203;(<a href="../../rex/RexInputRef.html" title="class in org.apache.calcite.rex">RexInputRef</a>&nbsp;inputRef)</pre>
<dl>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code><a href="../../rex/RexVisitor.html#visitInputRef(org.apache.calcite.rex.RexInputRef)">visitInputRef</a></code>&nbsp;in interface&nbsp;<code><a href="../../rex/RexVisitor.html" title="interface in org.apache.calcite.rex">RexVisitor</a>&lt;<a href="PredicateAnalyzer.Expression.html" title="interface in org.apache.calcite.adapter.elasticsearch">PredicateAnalyzer.Expression</a>&gt;</code></dd>
<dt><span class="overrideSpecifyLabel">Overrides:</span></dt>
<dd><code><a href="../../rex/RexVisitorImpl.html#visitInputRef(org.apache.calcite.rex.RexInputRef)">visitInputRef</a></code>&nbsp;in class&nbsp;<code><a href="../../rex/RexVisitorImpl.html" title="class in org.apache.calcite.rex">RexVisitorImpl</a>&lt;<a href="PredicateAnalyzer.Expression.html" title="interface in org.apache.calcite.adapter.elasticsearch">PredicateAnalyzer.Expression</a>&gt;</code></dd>
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<a id="visitLiteral(org.apache.calcite.rex.RexLiteral)">
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<h4>visitLiteral</h4>
<pre class="methodSignature">public&nbsp;<a href="PredicateAnalyzer.Expression.html" title="interface in org.apache.calcite.adapter.elasticsearch">PredicateAnalyzer.Expression</a>&nbsp;visitLiteral&#8203;(<a href="../../rex/RexLiteral.html" title="class in org.apache.calcite.rex">RexLiteral</a>&nbsp;literal)</pre>
<dl>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code><a href="../../rex/RexVisitor.html#visitLiteral(org.apache.calcite.rex.RexLiteral)">visitLiteral</a></code>&nbsp;in interface&nbsp;<code><a href="../../rex/RexVisitor.html" title="interface in org.apache.calcite.rex">RexVisitor</a>&lt;<a href="PredicateAnalyzer.Expression.html" title="interface in org.apache.calcite.adapter.elasticsearch">PredicateAnalyzer.Expression</a>&gt;</code></dd>
<dt><span class="overrideSpecifyLabel">Overrides:</span></dt>
<dd><code><a href="../../rex/RexVisitorImpl.html#visitLiteral(org.apache.calcite.rex.RexLiteral)">visitLiteral</a></code>&nbsp;in class&nbsp;<code><a href="../../rex/RexVisitorImpl.html" title="class in org.apache.calcite.rex">RexVisitorImpl</a>&lt;<a href="PredicateAnalyzer.Expression.html" title="interface in org.apache.calcite.adapter.elasticsearch">PredicateAnalyzer.Expression</a>&gt;</code></dd>
</dl>
</li>
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<a id="supportedRexCall(org.apache.calcite.rex.RexCall)">
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<h4>supportedRexCall</h4>
<pre class="methodSignature">private&nbsp;boolean&nbsp;supportedRexCall&#8203;(<a href="../../rex/RexCall.html" title="class in org.apache.calcite.rex">RexCall</a>&nbsp;call)</pre>
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<pre class="methodSignature">public&nbsp;<a href="PredicateAnalyzer.Expression.html" title="interface in org.apache.calcite.adapter.elasticsearch">PredicateAnalyzer.Expression</a>&nbsp;visitCall&#8203;(<a href="../../rex/RexCall.html" title="class in org.apache.calcite.rex">RexCall</a>&nbsp;call)</pre>
<dl>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code><a href="../../rex/RexVisitor.html#visitCall(org.apache.calcite.rex.RexCall)">visitCall</a></code>&nbsp;in interface&nbsp;<code><a href="../../rex/RexVisitor.html" title="interface in org.apache.calcite.rex">RexVisitor</a>&lt;<a href="PredicateAnalyzer.Expression.html" title="interface in org.apache.calcite.adapter.elasticsearch">PredicateAnalyzer.Expression</a>&gt;</code></dd>
<dt><span class="overrideSpecifyLabel">Overrides:</span></dt>
<dd><code><a href="../../rex/RexVisitorImpl.html#visitCall(org.apache.calcite.rex.RexCall)">visitCall</a></code>&nbsp;in class&nbsp;<code><a href="../../rex/RexVisitorImpl.html" title="class in org.apache.calcite.rex">RexVisitorImpl</a>&lt;<a href="PredicateAnalyzer.Expression.html" title="interface in org.apache.calcite.adapter.elasticsearch">PredicateAnalyzer.Expression</a>&gt;</code></dd>
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<h4>convertQueryString</h4>
<pre class="methodSignature">private static&nbsp;java.lang.String&nbsp;convertQueryString&#8203;(java.util.List&lt;<a href="PredicateAnalyzer.Expression.html" title="interface in org.apache.calcite.adapter.elasticsearch">PredicateAnalyzer.Expression</a>&gt;&nbsp;fields,
<a href="PredicateAnalyzer.Expression.html" title="interface in org.apache.calcite.adapter.elasticsearch">PredicateAnalyzer.Expression</a>&nbsp;query)</pre>
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<pre class="methodSignature">private&nbsp;<a href="PredicateAnalyzer.QueryExpression.html" title="class in org.apache.calcite.adapter.elasticsearch">PredicateAnalyzer.QueryExpression</a>&nbsp;prefix&#8203;(<a href="../../rex/RexCall.html" title="class in org.apache.calcite.rex">RexCall</a>&nbsp;call)</pre>
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<pre class="methodSignature">private&nbsp;<a href="PredicateAnalyzer.QueryExpression.html" title="class in org.apache.calcite.adapter.elasticsearch">PredicateAnalyzer.QueryExpression</a>&nbsp;postfix&#8203;(<a href="../../rex/RexCall.html" title="class in org.apache.calcite.rex">RexCall</a>&nbsp;call)</pre>
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<pre class="methodSignature">private&nbsp;<a href="PredicateAnalyzer.QueryExpression.html" title="class in org.apache.calcite.adapter.elasticsearch">PredicateAnalyzer.QueryExpression</a>&nbsp;binary&#8203;(<a href="../../rex/RexCall.html" title="class in org.apache.calcite.rex">RexCall</a>&nbsp;call)</pre>
<div class="block">Process a call which is a binary operation, transforming into an equivalent
query expression. Note that the incoming call may be either a simple binary
expression, such as <code>foo &gt; 5</code>, or it may be several simple expressions connected
by <code>AND</code> or <code>OR</code> operators, such as <code>foo &gt; 5 AND bar = 'abc' AND 'rot' &lt; 1</code></div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>call</code> - existing call</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>evaluated expression</dd>
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<h4>andOr</h4>
<pre class="methodSignature">private&nbsp;<a href="PredicateAnalyzer.QueryExpression.html" title="class in org.apache.calcite.adapter.elasticsearch">PredicateAnalyzer.QueryExpression</a>&nbsp;andOr&#8203;(<a href="../../rex/RexCall.html" title="class in org.apache.calcite.rex">RexCall</a>&nbsp;call)</pre>
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<h4>swap</h4>
<pre class="methodSignature">private static&nbsp;<a href="PredicateAnalyzer.Visitor.SwapResult.html" title="class in org.apache.calcite.adapter.elasticsearch">PredicateAnalyzer.Visitor.SwapResult</a>&nbsp;swap&#8203;(<a href="PredicateAnalyzer.Expression.html" title="interface in org.apache.calcite.adapter.elasticsearch">PredicateAnalyzer.Expression</a>&nbsp;left,
<a href="PredicateAnalyzer.Expression.html" title="interface in org.apache.calcite.adapter.elasticsearch">PredicateAnalyzer.Expression</a>&nbsp;right)</pre>
<div class="block">Swap order of operands such that the literal expression is always on the right.
<p>NOTE: Some combinations of operands are implicitly not supported and will
cause an exception to be thrown. For example, we currently do not support
comparing a literal to another literal as convention <code>5 = 5</code>. Nor do we support
comparing named fields to other named fields as convention <code>$0 = $1</code>.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>left</code> - left expression</dd>
<dd><code>right</code> - right expression</dd>
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<pre class="methodSignature">private&nbsp;<a href="PredicateAnalyzer.CastExpression.html" title="class in org.apache.calcite.adapter.elasticsearch">PredicateAnalyzer.CastExpression</a>&nbsp;toCastExpression&#8203;(<a href="../../rex/RexCall.html" title="class in org.apache.calcite.rex">RexCall</a>&nbsp;call)</pre>
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<h4>toNamedField</h4>
<pre class="methodSignature">private static&nbsp;<a href="PredicateAnalyzer.NamedFieldExpression.html" title="class in org.apache.calcite.adapter.elasticsearch">PredicateAnalyzer.NamedFieldExpression</a>&nbsp;toNamedField&#8203;(<a href="../../rex/RexLiteral.html" title="class in org.apache.calcite.rex">RexLiteral</a>&nbsp;literal)</pre>
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<pre class="methodSignature">private static&nbsp;<a href="PredicateAnalyzer.LiteralExpression.html" title="class in org.apache.calcite.adapter.elasticsearch">PredicateAnalyzer.LiteralExpression</a>&nbsp;expressAsLiteral&#8203;(<a href="PredicateAnalyzer.Expression.html" title="interface in org.apache.calcite.adapter.elasticsearch">PredicateAnalyzer.Expression</a>&nbsp;exp)</pre>
<div class="block">Try to convert a generic expression into a literal expression.</div>
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<pre class="methodSignature">private static&nbsp;boolean&nbsp;isColumn&#8203;(<a href="PredicateAnalyzer.Expression.html" title="interface in org.apache.calcite.adapter.elasticsearch">PredicateAnalyzer.Expression</a>&nbsp;exp,
<a href="../../rex/RexNode.html" title="class in org.apache.calcite.rex">RexNode</a>&nbsp;node,
java.lang.String&nbsp;columnName,
boolean&nbsp;throwException)</pre>
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