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<div class="subTitle">org.apache.hadoop.mapreduce.v2.app.job</div>
<h2 title="Interface Task" class="title">Interface Task</h2>
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<dt>All Known Implementing Classes:</dt>
<dd><a href="../../../../../../../org/apache/hadoop/mapreduce/v2/app/job/impl/MapTaskImpl.html" title="class in org.apache.hadoop.mapreduce.v2.app.job.impl">MapTaskImpl</a>, <a href="../../../../../../../org/apache/hadoop/mapreduce/v2/app/job/impl/ReduceTaskImpl.html" title="class in org.apache.hadoop.mapreduce.v2.app.job.impl">ReduceTaskImpl</a>, <a href="../../../../../../../org/apache/hadoop/mapreduce/v2/app/job/impl/TaskImpl.html" title="class in org.apache.hadoop.mapreduce.v2.app.job.impl">TaskImpl</a></dd>
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<pre>public interface <span class="typeNameLabel">Task</span></pre>
<div class="block">Read only view of Task.</div>
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<th class="colFirst" scope="col">Modifier and Type</th>
<th class="colLast" scope="col">Method and Description</th>
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<td class="colFirst"><code>boolean</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../org/apache/hadoop/mapreduce/v2/app/job/Task.html#canCommit-org.apache.hadoop.mapreduce.v2.api.records.TaskAttemptId-">canCommit</a></span>(org.apache.hadoop.mapreduce.v2.api.records.TaskAttemptId&nbsp;taskAttemptID)</code>
<div class="block">Can the output of the taskAttempt be committed.</div>
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<td class="colFirst"><code><a href="../../../../../../../org/apache/hadoop/mapreduce/v2/app/job/TaskAttempt.html" title="interface in org.apache.hadoop.mapreduce.v2.app.job">TaskAttempt</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../org/apache/hadoop/mapreduce/v2/app/job/Task.html#getAttempt-org.apache.hadoop.mapreduce.v2.api.records.TaskAttemptId-">getAttempt</a></span>(org.apache.hadoop.mapreduce.v2.api.records.TaskAttemptId&nbsp;attemptID)</code>&nbsp;</td>
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<td class="colFirst"><code><a href="https://docs.oracle.com/javase/8/docs/api/java/util/Map.html?is-external=true" title="class or interface in java.util">Map</a>&lt;org.apache.hadoop.mapreduce.v2.api.records.TaskAttemptId,<a href="../../../../../../../org/apache/hadoop/mapreduce/v2/app/job/TaskAttempt.html" title="interface in org.apache.hadoop.mapreduce.v2.app.job">TaskAttempt</a>&gt;</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../org/apache/hadoop/mapreduce/v2/app/job/Task.html#getAttempts--">getAttempts</a></span>()</code>&nbsp;</td>
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<td class="colFirst"><code>org.apache.hadoop.mapreduce.Counters</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../org/apache/hadoop/mapreduce/v2/app/job/Task.html#getCounters--">getCounters</a></span>()</code>&nbsp;</td>
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<td class="colFirst"><code>org.apache.hadoop.mapreduce.v2.api.records.TaskId</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../org/apache/hadoop/mapreduce/v2/app/job/Task.html#getID--">getID</a></span>()</code>&nbsp;</td>
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<tr id="i5" class="rowColor">
<td class="colFirst"><code>float</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../org/apache/hadoop/mapreduce/v2/app/job/Task.html#getProgress--">getProgress</a></span>()</code>&nbsp;</td>
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<tr id="i6" class="altColor">
<td class="colFirst"><code>org.apache.hadoop.mapreduce.v2.api.records.TaskReport</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../org/apache/hadoop/mapreduce/v2/app/job/Task.html#getReport--">getReport</a></span>()</code>&nbsp;</td>
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<tr id="i7" class="rowColor">
<td class="colFirst"><code>org.apache.hadoop.mapreduce.v2.api.records.TaskState</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../org/apache/hadoop/mapreduce/v2/app/job/Task.html#getState--">getState</a></span>()</code>&nbsp;</td>
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<tr id="i8" class="altColor">
<td class="colFirst"><code>org.apache.hadoop.mapreduce.v2.api.records.TaskType</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../org/apache/hadoop/mapreduce/v2/app/job/Task.html#getType--">getType</a></span>()</code>&nbsp;</td>
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<tr id="i9" class="rowColor">
<td class="colFirst"><code>boolean</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../org/apache/hadoop/mapreduce/v2/app/job/Task.html#isFinished--">isFinished</a></span>()</code>
<div class="block">Has Task reached the final state or not.</div>
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<h4>getID</h4>
<pre>org.apache.hadoop.mapreduce.v2.api.records.TaskId&nbsp;getID()</pre>
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<h4>getReport</h4>
<pre>org.apache.hadoop.mapreduce.v2.api.records.TaskReport&nbsp;getReport()</pre>
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<h4>getState</h4>
<pre>org.apache.hadoop.mapreduce.v2.api.records.TaskState&nbsp;getState()</pre>
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<h4>getCounters</h4>
<pre>org.apache.hadoop.mapreduce.Counters&nbsp;getCounters()</pre>
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<h4>getProgress</h4>
<pre>float&nbsp;getProgress()</pre>
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<h4>getType</h4>
<pre>org.apache.hadoop.mapreduce.v2.api.records.TaskType&nbsp;getType()</pre>
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<h4>getAttempts</h4>
<pre><a href="https://docs.oracle.com/javase/8/docs/api/java/util/Map.html?is-external=true" title="class or interface in java.util">Map</a>&lt;org.apache.hadoop.mapreduce.v2.api.records.TaskAttemptId,<a href="../../../../../../../org/apache/hadoop/mapreduce/v2/app/job/TaskAttempt.html" title="interface in org.apache.hadoop.mapreduce.v2.app.job">TaskAttempt</a>&gt;&nbsp;getAttempts()</pre>
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<h4>getAttempt</h4>
<pre><a href="../../../../../../../org/apache/hadoop/mapreduce/v2/app/job/TaskAttempt.html" title="interface in org.apache.hadoop.mapreduce.v2.app.job">TaskAttempt</a>&nbsp;getAttempt(org.apache.hadoop.mapreduce.v2.api.records.TaskAttemptId&nbsp;attemptID)</pre>
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<h4>isFinished</h4>
<pre>boolean&nbsp;isFinished()</pre>
<div class="block">Has Task reached the final state or not.</div>
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<h4>canCommit</h4>
<pre>boolean&nbsp;canCommit(org.apache.hadoop.mapreduce.v2.api.records.TaskAttemptId&nbsp;taskAttemptID)</pre>
<div class="block">Can the output of the taskAttempt be committed. Note that once the task
gives a go for a commit, further canCommit requests from any other attempts
should return false.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>taskAttemptID</code> - </dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>whether the attempt's output can be committed or not.</dd>
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