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<title>OpExecutor (Apache Jena ARQ)</title>
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<div class="sub-title"><span class="module-label-in-type">Module</span>&nbsp;<a href="../../../../../../module-summary.html">org.apache.jena.arq</a></div>
<div class="sub-title"><span class="package-label-in-type">Package</span>&nbsp;<a href="package-summary.html">org.apache.jena.sparql.engine.main</a></div>
<h1 title="Class OpExecutor" class="title">Class OpExecutor</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">org.apache.jena.sparql.engine.main.OpExecutor</div>
</div>
<section class="class-description" id="class-description">
<dl class="notes">
<dt>Direct Known Subclasses:</dt>
<dd><code><a href="solver/OpExecutorQuads.html" title="class in org.apache.jena.sparql.engine.main.solver">OpExecutorQuads</a></code></dd>
</dl>
<hr>
<div class="type-signature"><span class="modifiers">public class </span><span class="element-name type-name-label">OpExecutor</span>
<span class="extends-implements">extends <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></span></div>
<div class="block">Turn an Op expression into an execution of QueryIterators. Does not consider
optimizing the algebra expression (that should happen elsewhere). BGPs are still
subject to StageBuilding during iterator execution. During execution, when a
substitution into an algebra expression happens (in other words, a streaming
operation, index-join-like), there is a call into the executor each time so it
does not just happen once before a query starts.</div>
</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="OpExecutorFactory.html" title="interface in org.apache.jena.sparql.engine.main">OpExecutorFactory</a></code></div>
<div class="col-second even-row-color"><code><a href="#stdFactory" class="member-name-link">stdFactory</a></code></div>
<div class="col-last even-row-color">&nbsp;</div>
</div>
</section>
</li>
<!-- ========== METHOD SUMMARY =========== -->
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<h2>Method Summary</h2>
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<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-tab1 method-summary-table-tab4"><code>static <a href="../QueryIterator.html" title="interface in org.apache.jena.sparql.engine">QueryIterator</a></code></div>
<div class="col-second even-row-color method-summary-table method-summary-table-tab1 method-summary-table-tab4"><code><a href="#createRootQueryIterator(org.apache.jena.sparql.engine.ExecutionContext)" class="member-name-link">createRootQueryIterator</a><wbr>(<a href="../ExecutionContext.html" title="class in org.apache.jena.sparql.engine">ExecutionContext</a>&nbsp;execCxt)</code></div>
<div class="col-last even-row-color method-summary-table method-summary-table-tab1 method-summary-table-tab4">&nbsp;</div>
<div class="col-first odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code><a href="../QueryIterator.html" title="interface in org.apache.jena.sparql.engine">QueryIterator</a></code></div>
<div class="col-second odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code><a href="#executeOp(org.apache.jena.sparql.algebra.Op,org.apache.jena.sparql.engine.QueryIterator)" class="member-name-link">executeOp</a><wbr>(<a href="../../algebra/Op.html" title="interface in org.apache.jena.sparql.algebra">Op</a>&nbsp;op,
<a href="../QueryIterator.html" title="interface in org.apache.jena.sparql.engine">QueryIterator</a>&nbsp;input)</code></div>
<div class="col-last odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4">&nbsp;</div>
</div>
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<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#equals(java.lang.Object)" title="class or interface in java.lang" class="external-link">equals</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#hashCode()" title="class or interface in java.lang" class="external-link">hashCode</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#toString()" title="class or interface in java.lang" class="external-link">toString</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>
</section>
</li>
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</section>
<section class="details">
<ul class="details-list">
<!-- ============ FIELD DETAIL =========== -->
<li>
<section class="field-details" id="field-detail">
<h2>Field Details</h2>
<ul class="member-list">
<li>
<section class="detail" id="stdFactory">
<h3>stdFactory</h3>
<div class="member-signature"><span class="modifiers">public static final</span>&nbsp;<span class="return-type"><a href="OpExecutorFactory.html" title="interface in org.apache.jena.sparql.engine.main">OpExecutorFactory</a></span>&nbsp;<span class="element-name">stdFactory</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="executeOp(org.apache.jena.sparql.algebra.Op,org.apache.jena.sparql.engine.QueryIterator)">
<h3>executeOp</h3>
<div class="member-signature"><span class="modifiers">public</span>&nbsp;<span class="return-type"><a href="../QueryIterator.html" title="interface in org.apache.jena.sparql.engine">QueryIterator</a></span>&nbsp;<span class="element-name">executeOp</span><wbr><span class="parameters">(<a href="../../algebra/Op.html" title="interface in org.apache.jena.sparql.algebra">Op</a>&nbsp;op,
<a href="../QueryIterator.html" title="interface in org.apache.jena.sparql.engine">QueryIterator</a>&nbsp;input)</span></div>
</section>
</li>
<li>
<section class="detail" id="createRootQueryIterator(org.apache.jena.sparql.engine.ExecutionContext)">
<h3>createRootQueryIterator</h3>
<div class="member-signature"><span class="modifiers">public static</span>&nbsp;<span class="return-type"><a href="../QueryIterator.html" title="interface in org.apache.jena.sparql.engine">QueryIterator</a></span>&nbsp;<span class="element-name">createRootQueryIterator</span><wbr><span class="parameters">(<a href="../ExecutionContext.html" title="class in org.apache.jena.sparql.engine">ExecutionContext</a>&nbsp;execCxt)</span></div>
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