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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.rel.rules</a></div>
<h1 title="Interface PushProjector.ExprCondition" class="title">Interface PushProjector.ExprCondition</h1>
</div>
<section class="class-description" id="class-description">
<dl class="notes">
<dt>All Superinterfaces:</dt>
<dd><code><a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/util/function/Predicate.html" title="class or interface in java.util.function" class="external-link">Predicate</a>&lt;<a href="../../rex/RexNode.html" title="class in org.apache.calcite.rex">RexNode</a>&gt;</code></dd>
</dl>
<dl class="notes">
<dt>Enclosing class:</dt>
<dd><a href="PushProjector.html" title="class in org.apache.calcite.rel.rules">PushProjector</a></dd>
</dl>
<hr>
<div class="type-signature"><span class="modifiers">public static interface </span><span class="element-name type-name-label">PushProjector.ExprCondition</span><span class="extends-implements">
extends <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/util/function/Predicate.html" title="class or interface in java.util.function" class="external-link">Predicate</a>&lt;<a href="../../rex/RexNode.html" title="class in org.apache.calcite.rex">RexNode</a>&gt;</span></div>
<div class="block">A functor that replies true or false for a given expression.</div>
<dl class="notes">
<dt>See Also:</dt>
<dd>
<ul class="see-list-long">
<li><code>PushProjector.OperatorExprCondition</code></li>
</ul>
</dd>
</dl>
</section>
<section class="summary">
<ul class="summary-list">
<!-- =========== FIELD SUMMARY =========== -->
<li>
<section class="field-summary" id="field-summary">
<h2>Field Summary</h2>
<div class="caption"><span>Fields</span></div>
<div class="summary-table three-column-summary">
<div class="table-header col-first">Modifier and Type</div>
<div class="table-header col-second">Field</div>
<div class="table-header col-last">Description</div>
<div class="col-first even-row-color"><code>static final <a href="PushProjector.ExprCondition.html" title="interface in org.apache.calcite.rel.rules">PushProjector.ExprCondition</a></code></div>
<div class="col-second even-row-color"><code><a href="#FALSE" class="member-name-link">FALSE</a></code></div>
<div class="col-last even-row-color">
<div class="block">Constant condition that replies <code>false</code> for all expressions.</div>
</div>
<div class="col-first odd-row-color"><code>static final <a href="PushProjector.ExprCondition.html" title="interface in org.apache.calcite.rel.rules">PushProjector.ExprCondition</a></code></div>
<div class="col-second odd-row-color"><code><a href="#TRUE" class="member-name-link">TRUE</a></code></div>
<div class="col-last odd-row-color">
<div class="block">Constant condition that replies <code>true</code> for all expressions.</div>
</div>
</div>
</section>
</li>
<!-- ========== METHOD SUMMARY =========== -->
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<h2>Method Summary</h2>
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<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-tab3"><code>boolean</code></div>
<div class="col-second even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3"><code><a href="#test(org.apache.calcite.rex.RexNode)" class="member-name-link">test</a><wbr>(<a href="../../rex/RexNode.html" title="class in org.apache.calcite.rex">RexNode</a>&nbsp;expr)</code></div>
<div class="col-last even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3">
<div class="block">Evaluates a condition for a given expression.</div>
</div>
</div>
</div>
</div>
<div class="inherited-list">
<h3 id="methods-inherited-from-class-java.util.function.Predicate">Methods inherited from interface&nbsp;java.util.function.<a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/util/function/Predicate.html" title="class or interface in java.util.function" class="external-link">Predicate</a></h3>
<code><a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/util/function/Predicate.html#and(java.util.function.Predicate)" title="class or interface in java.util.function" class="external-link">and</a>, <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/util/function/Predicate.html#negate()" title="class or interface in java.util.function" class="external-link">negate</a>, <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/util/function/Predicate.html#or(java.util.function.Predicate)" title="class or interface in java.util.function" class="external-link">or</a></code></div>
</section>
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<!-- ============ FIELD DETAIL =========== -->
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<h2>Field Details</h2>
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<li>
<section class="detail" id="FALSE">
<h3>FALSE</h3>
<div class="member-signature"><span class="modifiers">static final</span>&nbsp;<span class="return-type"><a href="PushProjector.ExprCondition.html" title="interface in org.apache.calcite.rel.rules">PushProjector.ExprCondition</a></span>&nbsp;<span class="element-name">FALSE</span></div>
<div class="block">Constant condition that replies <code>false</code> for all expressions.</div>
</section>
</li>
<li>
<section class="detail" id="TRUE">
<h3>TRUE</h3>
<div class="member-signature"><span class="modifiers">static final</span>&nbsp;<span class="return-type"><a href="PushProjector.ExprCondition.html" title="interface in org.apache.calcite.rel.rules">PushProjector.ExprCondition</a></span>&nbsp;<span class="element-name">TRUE</span></div>
<div class="block">Constant condition that replies <code>true</code> for all expressions.</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="test(org.apache.calcite.rex.RexNode)">
<h3>test</h3>
<div class="member-signature"><span class="return-type">boolean</span>&nbsp;<span class="element-name">test</span><wbr><span class="parameters">(<a href="../../rex/RexNode.html" title="class in org.apache.calcite.rex">RexNode</a>&nbsp;expr)</span></div>
<div class="block">Evaluates a condition for a given expression.</div>
<dl class="notes">
<dt>Specified by:</dt>
<dd><code><a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/util/function/Predicate.html#test(T)" title="class or interface in java.util.function" class="external-link">test</a></code>&nbsp;in interface&nbsp;<code><a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/util/function/Predicate.html" title="class or interface in java.util.function" class="external-link">Predicate</a>&lt;<a href="../../rex/RexNode.html" title="class in org.apache.calcite.rex">RexNode</a>&gt;</code></dd>
<dt>Parameters:</dt>
<dd><code>expr</code> - Expression</dd>
<dt>Returns:</dt>
<dd>result of evaluating the condition</dd>
</dl>
</section>
</li>
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