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<div class="subTitle">org.apache.uima.flow</div>
<h2 title="Class ParallelStep" class="title">Class ParallelStep</h2>
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<pre>public class <span class="typeNameLabel">ParallelStep</span>
extends <a href="../../../../org/apache/uima/flow/Step.html" title="class in org.apache.uima.flow">Step</a></pre>
<div class="block">Indicates that a CAS should be routed to a multiple AnalysisEngines and that the relative order
in which these execute does not matter. Logically, they can run in parallel. The runtime is not
obligated to actually execute them in parallel, however.
<p>
After all the specified Analysis Engines have completed their processing, the <a href="../../../../org/apache/uima/flow/Flow.html#next--"><code>Flow.next()</code></a>
method will be called again to determine the next destination for the CAS.</div>
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<td class="colOne"><code><span class="memberNameLink"><a href="../../../../org/apache/uima/flow/ParallelStep.html#ParallelStep-java.util.Collection-">ParallelStep</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/util/Collection.html?is-external=true" title="class or interface in java.util">Collection</a>&lt;<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&gt;&nbsp;aAnalysisEngineKeys)</code>
<div class="block">Creates a new ParallelStep</div>
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<td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/uima/flow/ParallelStep.html#getAnalysisEngineKeys--">getAnalysisEngineKeys</a></span>()</code>
<div class="block">Gets the keys of the Analysis Engines to which the CAS should be routed.</div>
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<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/uima/flow/ParallelStep.html#setAnalysisEngineKeys-java.util.Collection-">setAnalysisEngineKeys</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/util/Collection.html?is-external=true" title="class or interface in java.util">Collection</a>&lt;<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&gt;&nbsp;aKeys)</code>
<div class="block">Sets the keys of the Analysis Engines to which the CAS should be routed.</div>
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<h4>ParallelStep</h4>
<pre>public&nbsp;ParallelStep(<a href="https://docs.oracle.com/javase/8/docs/api/java/util/Collection.html?is-external=true" title="class or interface in java.util">Collection</a>&lt;<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&gt;&nbsp;aAnalysisEngineKeys)</pre>
<div class="block">Creates a new ParallelStep</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>aAnalysisEngineKeys</code> - A Collection of Strings, where each String is the key of an Analysis Engine to which the CAS
should be routed. Each String must bee one of the keys in the FlowController's
<a href="../../../../org/apache/uima/flow/FlowControllerContext.html#getAnalysisEngineMetaDataMap--"><code>FlowControllerContext.getAnalysisEngineMetaDataMap()</code></a>.</dd>
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<h4>getAnalysisEngineKeys</h4>
<pre>public&nbsp;<a href="https://docs.oracle.com/javase/8/docs/api/java/util/Collection.html?is-external=true" title="class or interface in java.util">Collection</a>&lt;<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&gt;&nbsp;getAnalysisEngineKeys()</pre>
<div class="block">Gets the keys of the Analysis Engines to which the CAS should be routed.</div>
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<dt><span class="returnLabel">Returns:</span></dt>
<dd>an unmodifiable Collection of Strings, where each String is the key of an Analysis Engine to
which the CAS should be routed.</dd>
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<h4>setAnalysisEngineKeys</h4>
<pre>public&nbsp;void&nbsp;setAnalysisEngineKeys(<a href="https://docs.oracle.com/javase/8/docs/api/java/util/Collection.html?is-external=true" title="class or interface in java.util">Collection</a>&lt;<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&gt;&nbsp;aKeys)</pre>
<div class="block">Sets the keys of the Analysis Engines to which the CAS should be routed. By using this method,
a user's Flow implementation can (but is not required to) reuse the same ParallelStep object
multiple times.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>aKeys</code> - A Collection of Strings, where each String is the key of an Analysis Engine to which the CAS
should be routed. Each String must bee one of the keys in the FlowController's
<a href="../../../../org/apache/uima/flow/FlowControllerContext.html#getAnalysisEngineMetaDataMap--"><code>FlowControllerContext.getAnalysisEngineMetaDataMap()</code></a>.</dd>
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