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<div class="subTitle">org.apache.ignite.compute</div>
<h2 title="Class ComputeJobAdapter" class="title">Class ComputeJobAdapter</h2>
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<li>org.apache.ignite.compute.ComputeJobAdapter</li>
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<dt>All Implemented Interfaces:</dt>
<dd><a href="https://docs.oracle.com/javase/8/docs/api/java/io/Serializable.html?is-external=true" title="class or interface in java.io">Serializable</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/util/concurrent/Callable.html?is-external=true" title="class or interface in java.util.concurrent">Callable</a><span class='angle_bracket'>&lt;</span><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a><span class='angle_bracket'>&gt;</span>, <a href="../../../../org/apache/ignite/compute/ComputeJob.html" title="interface in org.apache.ignite.compute">ComputeJob</a></dd>
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<dl>
<dt>Direct Known Subclasses:</dt>
<dd><a href="../../../../org/apache/ignite/compute/ComputeJobContinuationAdapter.html" title="class in org.apache.ignite.compute">ComputeJobContinuationAdapter</a></dd>
</dl>
<hr>
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<pre>public abstract class <span class="typeNameLabel">ComputeJobAdapter</span>
extends <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a>
implements <a href="../../../../org/apache/ignite/compute/ComputeJob.html" title="interface in org.apache.ignite.compute">ComputeJob</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/util/concurrent/Callable.html?is-external=true" title="class or interface in java.util.concurrent">Callable</a><span class='angle_bracket'>&lt;</span><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a><span class='angle_bracket'>&gt;</span></pre>
<div class="block">Convenience adapter for <a href="../../../../org/apache/ignite/compute/ComputeJob.html" title="interface in org.apache.ignite.compute"><code>ComputeJob</code></a> implementations. It provides the
following functionality:
<ul>
<li>
Default implementation of <a href="../../../../org/apache/ignite/compute/ComputeJob.html#cancel--"><code>ComputeJob.cancel()</code></a> method and ability
to check whether cancellation occurred with <a href="../../../../org/apache/ignite/compute/ComputeJobAdapter.html#isCancelled--"><code>isCancelled()</code></a> method.
</li>
<li>
Ability to set and get job arguments via <a href="../../../../org/apache/ignite/compute/ComputeJobAdapter.html#setArguments-java.lang.Object...-"><code>setArguments(Object...)</code></a>
and <a href="../../../../org/apache/ignite/compute/ComputeJobAdapter.html#argument-int-"><code>argument(int)</code></a> methods.
</li>
</ul></div>
<dl>
<dt><span class="seeLabel">See Also:</span></dt>
<dd><a href="../../../../serialized-form.html#org.apache.ignite.compute.ComputeJobAdapter">Serialized Form</a></dd>
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<th class="colFirst" scope="col">Modifier</th>
<th class="colLast" scope="col">Constructor and Description</th>
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<td class="colFirst"><code>protected </code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/ignite/compute/ComputeJobAdapter.html#ComputeJobAdapter--">ComputeJobAdapter</a></span>()</code>
<div class="block">No-arg constructor.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>protected </code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/ignite/compute/ComputeJobAdapter.html#ComputeJobAdapter-java.lang.Object...-">ComputeJobAdapter</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a>...&nbsp;args)</code>
<div class="block">Creates job with specified arguments.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>protected </code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/ignite/compute/ComputeJobAdapter.html#ComputeJobAdapter-java.lang.Object-">ComputeJobAdapter</a></span>(@Nullable <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a>&nbsp;arg)</code>
<div class="block">Creates job with one arguments.</div>
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<td class="colFirst"><code><span class='angle_bracket'>&lt;</span>T<span class='angle_bracket'>&gt;</span>&nbsp;T</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/ignite/compute/ComputeJobAdapter.html#argument-int-">argument</a></span>(int&nbsp;idx)</code>
<div class="block">Gets job argument.</div>
</td>
</tr>
<tr id="i1" class="rowColor">
<td class="colFirst"><code>protected @Nullable <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a>[]</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/ignite/compute/ComputeJobAdapter.html#arguments--">arguments</a></span>()</code>
<div class="block">Gets array of job arguments.</div>
</td>
</tr>
<tr id="i2" class="altColor">
<td class="colFirst"><code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/ignite/compute/ComputeJobAdapter.html#call--">call</a></span>()</code></td>
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<tr id="i3" class="rowColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/ignite/compute/ComputeJobAdapter.html#cancel--">cancel</a></span>()</code>
<div class="block">This method is called when system detects that completion of this
job can no longer alter the overall outcome (for example, when parent task
has already reduced the results).</div>
</td>
</tr>
<tr id="i4" class="altColor">
<td class="colFirst"><code>protected boolean</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/ignite/compute/ComputeJobAdapter.html#isCancelled--">isCancelled</a></span>()</code>
<div class="block">This method tests whether or not this job was cancelled.</div>
</td>
</tr>
<tr id="i5" class="rowColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/ignite/compute/ComputeJobAdapter.html#setArguments-java.lang.Object...-">setArguments</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a>...&nbsp;args)</code>
<div class="block">Sets given arguments.</div>
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<h3>Methods inherited from class&nbsp;java.lang.<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a></h3>
<code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#clone--" title="class or interface in java.lang">clone</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#equals-java.lang.Object-" title="class or interface in java.lang">equals</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#finalize--" title="class or interface in java.lang">finalize</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#getClass--" title="class or interface in java.lang">getClass</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#hashCode--" title="class or interface in java.lang">hashCode</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#notify--" title="class or interface in java.lang">notify</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#notifyAll--" title="class or interface in java.lang">notifyAll</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#toString--" title="class or interface in java.lang">toString</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#wait--" title="class or interface in java.lang">wait</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#wait-long-" title="class or interface in java.lang">wait</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#wait-long-int-" title="class or interface in java.lang">wait</a></code></li>
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<h3>Methods inherited from interface&nbsp;org.apache.ignite.compute.<a href="../../../../org/apache/ignite/compute/ComputeJob.html" title="interface in org.apache.ignite.compute">ComputeJob</a></h3>
<code><a href="../../../../org/apache/ignite/compute/ComputeJob.html#execute--">execute</a></code></li>
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<h4>ComputeJobAdapter</h4>
<pre>protected&nbsp;ComputeJobAdapter()</pre>
<div class="block">No-arg constructor.</div>
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<h4>ComputeJobAdapter</h4>
<pre>protected&nbsp;ComputeJobAdapter(@Nullable
@Nullable <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a>&nbsp;arg)</pre>
<div class="block">Creates job with one arguments. This constructor exists for better
backward compatibility with internal Ignite 2.x code.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>arg</code> - Job argument.</dd>
</dl>
</li>
</ul>
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<h4>ComputeJobAdapter</h4>
<pre>protected&nbsp;ComputeJobAdapter(@Nullable
<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a>...&nbsp;args)</pre>
<div class="block">Creates job with specified arguments.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>args</code> - Optional job arguments.</dd>
</dl>
</li>
</ul>
</li>
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<h4>setArguments</h4>
<pre>public&nbsp;void&nbsp;setArguments(@Nullable
<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a>...&nbsp;args)</pre>
<div class="block">Sets given arguments.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>args</code> - Optional job arguments to set.</dd>
</dl>
</li>
</ul>
<a name="cancel--">
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<h4>cancel</h4>
<pre>public&nbsp;void&nbsp;cancel()</pre>
<div class="block">This method is called when system detects that completion of this
job can no longer alter the overall outcome (for example, when parent task
has already reduced the results). Job is also cancelled when
<a href="../../../../org/apache/ignite/lang/IgniteFuture.html#cancel--"><code>IgniteFuture.cancel()</code></a> is called.
<p>
Note that job cancellation is only a hint, and just like with
<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Thread.html?is-external=true#interrupt--" title="class or interface in java.lang"><code>Thread.interrupt()</code></a> method, it is really up to the actual job
instance to gracefully finish execution and exit.</div>
<dl>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code><a href="../../../../org/apache/ignite/compute/ComputeJob.html#cancel--">cancel</a></code>&nbsp;in interface&nbsp;<code><a href="../../../../org/apache/ignite/compute/ComputeJob.html" title="interface in org.apache.ignite.compute">ComputeJob</a></code></dd>
</dl>
</li>
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<a name="isCancelled--">
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<h4>isCancelled</h4>
<pre>protected final&nbsp;boolean&nbsp;isCancelled()</pre>
<div class="block">This method tests whether or not this job was cancelled. This method
is thread-safe and can be called without extra synchronization.
<p>
This method can be periodically called in <a href="../../../../org/apache/ignite/compute/ComputeJob.html#execute--"><code>ComputeJob.execute()</code></a> method
implementation to check whether or not this job cancelled. Note that system
calls <a href="../../../../org/apache/ignite/compute/ComputeJobAdapter.html#cancel--"><code>cancel()</code></a> method only as a hint and this is a responsibility of
the implementation of the job to properly cancel its execution.</div>
<dl>
<dt><span class="returnLabel">Returns:</span></dt>
<dd><code>true</code> if this job was cancelled, <code>false</code> otherwise.</dd>
</dl>
</li>
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<h4>argument</h4>
<pre>@Nullable
public&nbsp;<span class='angle_bracket'>&lt;</span>T<span class='angle_bracket'>&gt;</span>&nbsp;T&nbsp;argument(int&nbsp;idx)</pre>
<div class="block">Gets job argument.</div>
<dl>
<dt><span class="paramLabel">Type Parameters:</span></dt>
<dd><code>T</code> - Type of the argument to return.</dd>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>idx</code> - Index of the argument.</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>Job argument.</dd>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/NullPointerException.html?is-external=true" title="class or interface in java.lang">NullPointerException</a></code> - Thrown in case when there no arguments set.</dd>
<dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/IllegalArgumentException.html?is-external=true" title="class or interface in java.lang">IllegalArgumentException</a></code> - Thrown if index is invalid.</dd>
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<h4>arguments</h4>
<pre>@Nullable
protected&nbsp;@Nullable <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a>[]&nbsp;arguments()</pre>
<div class="block">Gets array of job arguments. Note that changes to this array may
affect job execution.</div>
<dl>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>Array of job arguments.</dd>
</dl>
</li>
</ul>
<a name="call--">
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<h4>call</h4>
<pre>public final&nbsp;<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a>&nbsp;call()</pre>
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<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
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