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<h2 title="Class TaskAttemptID" class="title">Class TaskAttemptID</h2>
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<li><a href="../../../../org/apache/hadoop/mapred/ID.html" title="class in org.apache.hadoop.mapred">org.apache.hadoop.mapred.ID</a></li>
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<li>org.apache.hadoop.mapreduce.TaskAttemptID</li>
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<dt>All Implemented Interfaces:</dt>
<dd><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Comparable.html?is-external=true" title="class or interface in java.lang">Comparable</a>&lt;<a href="../../../../org/apache/hadoop/mapreduce/ID.html" title="class in org.apache.hadoop.mapreduce">ID</a>&gt;, <a href="../../../../org/apache/hadoop/io/Writable.html" title="interface in org.apache.hadoop.io">Writable</a>, <a href="../../../../org/apache/hadoop/io/WritableComparable.html" title="interface in org.apache.hadoop.io">WritableComparable</a>&lt;<a href="../../../../org/apache/hadoop/mapreduce/ID.html" title="class in org.apache.hadoop.mapreduce">ID</a>&gt;</dd>
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<dt>Direct Known Subclasses:</dt>
<dd><a href="../../../../org/apache/hadoop/mapred/TaskAttemptID.html" title="class in org.apache.hadoop.mapred">TaskAttemptID</a></dd>
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<pre>@InterfaceAudience.Public
@InterfaceStability.Stable
public class <span class="typeNameLabel">TaskAttemptID</span>
extends <a href="../../../../org/apache/hadoop/mapred/ID.html" title="class in org.apache.hadoop.mapred">ID</a></pre>
<div class="block">TaskAttemptID represents the immutable and unique identifier for
a task attempt. Each task attempt is one particular instance of a Map or
Reduce Task identified by its TaskID.
TaskAttemptID consists of 2 parts. First part is the
<a href="../../../../org/apache/hadoop/mapreduce/TaskID.html" title="class in org.apache.hadoop.mapreduce"><code>TaskID</code></a>, that this TaskAttemptID belongs to.
Second part is the task attempt number. <br>
An example TaskAttemptID is :
<code>attempt_200707121733_0003_m_000005_0</code> , which represents the
zeroth task attempt for the fifth map task in the third job
running at the jobtracker started at <code>200707121733</code>.
<p>
Applications should never construct or parse TaskAttemptID strings
, but rather use appropriate constructors or <a href="../../../../org/apache/hadoop/mapreduce/TaskAttemptID.html#forName-java.lang.String-"><code>forName(String)</code></a>
method.</div>
<dl>
<dt><span class="seeLabel">See Also:</span></dt>
<dd><a href="../../../../org/apache/hadoop/mapreduce/JobID.html" title="class in org.apache.hadoop.mapreduce"><code>JobID</code></a>,
<a href="../../../../org/apache/hadoop/mapreduce/TaskID.html" title="class in org.apache.hadoop.mapreduce"><code>TaskID</code></a></dd>
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<td class="colFirst"><code>protected static <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></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/hadoop/mapreduce/TaskAttemptID.html#ATTEMPT">ATTEMPT</a></span></code>&nbsp;</td>
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<h3>Fields inherited from class&nbsp;org.apache.hadoop.mapreduce.<a href="../../../../org/apache/hadoop/mapreduce/ID.html" title="class in org.apache.hadoop.mapreduce">ID</a></h3>
<code><a href="../../../../org/apache/hadoop/mapreduce/ID.html#id">id</a>, <a href="../../../../org/apache/hadoop/mapreduce/ID.html#SEPARATOR">SEPARATOR</a></code></li>
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<th class="colOne" scope="col">Constructor and Description</th>
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<td class="colOne"><code><span class="memberNameLink"><a href="../../../../org/apache/hadoop/mapreduce/TaskAttemptID.html#TaskAttemptID--">TaskAttemptID</a></span>()</code>&nbsp;</td>
</tr>
<tr class="rowColor">
<td class="colOne"><code><span class="memberNameLink"><a href="../../../../org/apache/hadoop/mapreduce/TaskAttemptID.html#TaskAttemptID-java.lang.String-int-boolean-int-int-">TaskAttemptID</a></span>(<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>&nbsp;jtIdentifier,
int&nbsp;jobId,
boolean&nbsp;isMap,
int&nbsp;taskId,
int&nbsp;id)</code>
<div class="block"><span class="deprecatedLabel">Deprecated.</span>&nbsp;</div>
</td>
</tr>
<tr class="altColor">
<td class="colOne"><code><span class="memberNameLink"><a href="../../../../org/apache/hadoop/mapreduce/TaskAttemptID.html#TaskAttemptID-java.lang.String-int-org.apache.hadoop.mapreduce.TaskType-int-int-">TaskAttemptID</a></span>(<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>&nbsp;jtIdentifier,
int&nbsp;jobId,
<a href="../../../../org/apache/hadoop/mapreduce/TaskType.html" title="enum in org.apache.hadoop.mapreduce">TaskType</a>&nbsp;type,
int&nbsp;taskId,
int&nbsp;id)</code>
<div class="block">Constructs a TaskId object from given parts.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colOne"><code><span class="memberNameLink"><a href="../../../../org/apache/hadoop/mapreduce/TaskAttemptID.html#TaskAttemptID-org.apache.hadoop.mapreduce.TaskID-int-">TaskAttemptID</a></span>(<a href="../../../../org/apache/hadoop/mapreduce/TaskID.html" title="class in org.apache.hadoop.mapreduce">TaskID</a>&nbsp;taskId,
int&nbsp;id)</code>
<div class="block">Constructs a TaskAttemptID object from given <a href="../../../../org/apache/hadoop/mapreduce/TaskID.html" title="class in org.apache.hadoop.mapreduce"><code>TaskID</code></a>.</div>
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<tr>
<th class="colFirst" scope="col">Modifier and Type</th>
<th class="colLast" scope="col">Method and Description</th>
</tr>
<tr id="i0" class="altColor">
<td class="colFirst"><code>protected <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/StringBuilder.html?is-external=true" title="class or interface in java.lang">StringBuilder</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/hadoop/mapreduce/TaskAttemptID.html#appendTo-java.lang.StringBuilder-">appendTo</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/StringBuilder.html?is-external=true" title="class or interface in java.lang">StringBuilder</a>&nbsp;builder)</code>
<div class="block">Add the unique string to the StringBuilder</div>
</td>
</tr>
<tr id="i1" class="rowColor">
<td class="colFirst"><code>int</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/hadoop/mapreduce/TaskAttemptID.html#compareTo-org.apache.hadoop.mapreduce.ID-">compareTo</a></span>(<a href="../../../../org/apache/hadoop/mapreduce/ID.html" title="class in org.apache.hadoop.mapreduce">ID</a>&nbsp;o)</code>
<div class="block">Compare TaskIds by first tipIds, then by task numbers.</div>
</td>
</tr>
<tr id="i2" class="altColor">
<td class="colFirst"><code>boolean</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/hadoop/mapreduce/TaskAttemptID.html#equals-java.lang.Object-">equals</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;o)</code>&nbsp;</td>
</tr>
<tr id="i3" class="rowColor">
<td class="colFirst"><code>static <a href="../../../../org/apache/hadoop/mapreduce/TaskAttemptID.html" title="class in org.apache.hadoop.mapreduce">TaskAttemptID</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/hadoop/mapreduce/TaskAttemptID.html#forName-java.lang.String-">forName</a></span>(<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>&nbsp;str)</code>
<div class="block">Construct a TaskAttemptID object from given string</div>
</td>
</tr>
<tr id="i4" class="altColor">
<td class="colFirst"><code><a href="../../../../org/apache/hadoop/mapreduce/JobID.html" title="class in org.apache.hadoop.mapreduce">JobID</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/hadoop/mapreduce/TaskAttemptID.html#getJobID--">getJobID</a></span>()</code>
<div class="block">Returns the <a href="../../../../org/apache/hadoop/mapreduce/JobID.html" title="class in org.apache.hadoop.mapreduce"><code>JobID</code></a> object that this task attempt belongs to</div>
</td>
</tr>
<tr id="i5" class="rowColor">
<td class="colFirst"><code><a href="../../../../org/apache/hadoop/mapreduce/TaskID.html" title="class in org.apache.hadoop.mapreduce">TaskID</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/hadoop/mapreduce/TaskAttemptID.html#getTaskID--">getTaskID</a></span>()</code>
<div class="block">Returns the <a href="../../../../org/apache/hadoop/mapreduce/TaskID.html" title="class in org.apache.hadoop.mapreduce"><code>TaskID</code></a> object that this task attempt belongs to</div>
</td>
</tr>
<tr id="i6" class="altColor">
<td class="colFirst"><code><a href="../../../../org/apache/hadoop/mapreduce/TaskType.html" title="enum in org.apache.hadoop.mapreduce">TaskType</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/hadoop/mapreduce/TaskAttemptID.html#getTaskType--">getTaskType</a></span>()</code>
<div class="block">Returns the TaskType of the TaskAttemptID</div>
</td>
</tr>
<tr id="i7" class="rowColor">
<td class="colFirst"><code>int</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/hadoop/mapreduce/TaskAttemptID.html#hashCode--">hashCode</a></span>()</code>&nbsp;</td>
</tr>
<tr id="i8" class="altColor">
<td class="colFirst"><code>boolean</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/hadoop/mapreduce/TaskAttemptID.html#isMap--">isMap</a></span>()</code>
<div class="block"><span class="deprecatedLabel">Deprecated.</span>&nbsp;</div>
</td>
</tr>
<tr id="i9" class="rowColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/hadoop/mapreduce/TaskAttemptID.html#readFields-java.io.DataInput-">readFields</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/io/DataInput.html?is-external=true" title="class or interface in java.io">DataInput</a>&nbsp;in)</code>
<div class="block">Deserialize the fields of this object from <code>in</code>.</div>
</td>
</tr>
<tr id="i10" class="altColor">
<td class="colFirst"><code><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></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/hadoop/mapreduce/TaskAttemptID.html#toString--">toString</a></span>()</code>&nbsp;</td>
</tr>
<tr id="i11" class="rowColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/hadoop/mapreduce/TaskAttemptID.html#write-java.io.DataOutput-">write</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/io/DataOutput.html?is-external=true" title="class or interface in java.io">DataOutput</a>&nbsp;out)</code>
<div class="block">Serialize the fields of this object to <code>out</code>.</div>
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<code><a href="../../../../org/apache/hadoop/mapreduce/ID.html#getId--">getId</a></code></li>
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<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#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#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#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>Field Detail</h3>
<a name="ATTEMPT">
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<h4>ATTEMPT</h4>
<pre>protected static final&nbsp;<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> ATTEMPT</pre>
<dl>
<dt><span class="seeLabel">See Also:</span></dt>
<dd><a href="../../../../constant-values.html#org.apache.hadoop.mapreduce.TaskAttemptID.ATTEMPT">Constant Field Values</a></dd>
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<h4>TaskAttemptID</h4>
<pre>public&nbsp;TaskAttemptID(<a href="../../../../org/apache/hadoop/mapreduce/TaskID.html" title="class in org.apache.hadoop.mapreduce">TaskID</a>&nbsp;taskId,
int&nbsp;id)</pre>
<div class="block">Constructs a TaskAttemptID object from given <a href="../../../../org/apache/hadoop/mapreduce/TaskID.html" title="class in org.apache.hadoop.mapreduce"><code>TaskID</code></a>.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>taskId</code> - TaskID that this task belongs to</dd>
<dd><code>id</code> - the task attempt number</dd>
</dl>
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<h4>TaskAttemptID</h4>
<pre>public&nbsp;TaskAttemptID(<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>&nbsp;jtIdentifier,
int&nbsp;jobId,
<a href="../../../../org/apache/hadoop/mapreduce/TaskType.html" title="enum in org.apache.hadoop.mapreduce">TaskType</a>&nbsp;type,
int&nbsp;taskId,
int&nbsp;id)</pre>
<div class="block">Constructs a TaskId object from given parts.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>jtIdentifier</code> - jobTracker identifier</dd>
<dd><code>jobId</code> - job number</dd>
<dd><code>type</code> - the TaskType</dd>
<dd><code>taskId</code> - taskId number</dd>
<dd><code>id</code> - the task attempt number</dd>
</dl>
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<h4>TaskAttemptID</h4>
<pre><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Deprecated.html?is-external=true" title="class or interface in java.lang">@Deprecated</a>
public&nbsp;TaskAttemptID(<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>&nbsp;jtIdentifier,
int&nbsp;jobId,
boolean&nbsp;isMap,
int&nbsp;taskId,
int&nbsp;id)</pre>
<div class="block"><span class="deprecatedLabel">Deprecated.</span>&nbsp;</div>
<div class="block">Constructs a TaskId object from given parts.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>jtIdentifier</code> - jobTracker identifier</dd>
<dd><code>jobId</code> - job number</dd>
<dd><code>isMap</code> - whether the tip is a map</dd>
<dd><code>taskId</code> - taskId number</dd>
<dd><code>id</code> - the task attempt number</dd>
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<pre>public&nbsp;TaskAttemptID()</pre>
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<pre>public&nbsp;<a href="../../../../org/apache/hadoop/mapreduce/JobID.html" title="class in org.apache.hadoop.mapreduce">JobID</a>&nbsp;getJobID()</pre>
<div class="block">Returns the <a href="../../../../org/apache/hadoop/mapreduce/JobID.html" title="class in org.apache.hadoop.mapreduce"><code>JobID</code></a> object that this task attempt belongs to</div>
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<pre>public&nbsp;<a href="../../../../org/apache/hadoop/mapreduce/TaskID.html" title="class in org.apache.hadoop.mapreduce">TaskID</a>&nbsp;getTaskID()</pre>
<div class="block">Returns the <a href="../../../../org/apache/hadoop/mapreduce/TaskID.html" title="class in org.apache.hadoop.mapreduce"><code>TaskID</code></a> object that this task attempt belongs to</div>
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<pre><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Deprecated.html?is-external=true" title="class or interface in java.lang">@Deprecated</a>
public&nbsp;boolean&nbsp;isMap()</pre>
<div class="block"><span class="deprecatedLabel">Deprecated.</span>&nbsp;</div>
<div class="block">Returns whether this TaskID is a map ID</div>
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<pre>public&nbsp;<a href="../../../../org/apache/hadoop/mapreduce/TaskType.html" title="enum in org.apache.hadoop.mapreduce">TaskType</a>&nbsp;getTaskType()</pre>
<div class="block">Returns the TaskType of the TaskAttemptID</div>
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<pre>public&nbsp;boolean&nbsp;equals(<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;o)</pre>
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<dt><span class="overrideSpecifyLabel">Overrides:</span></dt>
<dd><code><a href="../../../../org/apache/hadoop/mapreduce/ID.html#equals-java.lang.Object-">equals</a></code>&nbsp;in class&nbsp;<code><a href="../../../../org/apache/hadoop/mapreduce/ID.html" title="class in org.apache.hadoop.mapreduce">ID</a></code></dd>
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<pre>protected&nbsp;<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/StringBuilder.html?is-external=true" title="class or interface in java.lang">StringBuilder</a>&nbsp;appendTo(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/StringBuilder.html?is-external=true" title="class or interface in java.lang">StringBuilder</a>&nbsp;builder)</pre>
<div class="block">Add the unique string to the StringBuilder</div>
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<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>builder</code> - the builder to append ot</dd>
<dt><span class="returnLabel">Returns:</span></dt>
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<pre>public&nbsp;void&nbsp;readFields(<a href="https://docs.oracle.com/javase/8/docs/api/java/io/DataInput.html?is-external=true" title="class or interface in java.io">DataInput</a>&nbsp;in)
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<div class="block"><span class="descfrmTypeLabel">Description copied from interface:&nbsp;<code><a href="../../../../org/apache/hadoop/io/Writable.html#readFields-java.io.DataInput-">Writable</a></code></span></div>
<div class="block">Deserialize the fields of this object from <code>in</code>.
<p>For efficiency, implementations should attempt to re-use storage in the
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<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code><a href="../../../../org/apache/hadoop/io/Writable.html#readFields-java.io.DataInput-">readFields</a></code>&nbsp;in interface&nbsp;<code><a href="../../../../org/apache/hadoop/io/Writable.html" title="interface in org.apache.hadoop.io">Writable</a></code></dd>
<dt><span class="overrideSpecifyLabel">Overrides:</span></dt>
<dd><code><a href="../../../../org/apache/hadoop/mapreduce/ID.html#readFields-java.io.DataInput-">readFields</a></code>&nbsp;in class&nbsp;<code><a href="../../../../org/apache/hadoop/mapreduce/ID.html" title="class in org.apache.hadoop.mapreduce">ID</a></code></dd>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>in</code> - <code>DataInput</code> to deseriablize this object from.</dd>
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<dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></code></dd>
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<div class="block"><span class="descfrmTypeLabel">Description copied from interface:&nbsp;<code><a href="../../../../org/apache/hadoop/io/Writable.html#write-java.io.DataOutput-">Writable</a></code></span></div>
<div class="block">Serialize the fields of this object to <code>out</code>.</div>
<dl>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code><a href="../../../../org/apache/hadoop/io/Writable.html#write-java.io.DataOutput-">write</a></code>&nbsp;in interface&nbsp;<code><a href="../../../../org/apache/hadoop/io/Writable.html" title="interface in org.apache.hadoop.io">Writable</a></code></dd>
<dt><span class="overrideSpecifyLabel">Overrides:</span></dt>
<dd><code><a href="../../../../org/apache/hadoop/mapreduce/ID.html#write-java.io.DataOutput-">write</a></code>&nbsp;in class&nbsp;<code><a href="../../../../org/apache/hadoop/mapreduce/ID.html" title="class in org.apache.hadoop.mapreduce">ID</a></code></dd>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>out</code> - <code>DataOuput</code> to serialize this object into.</dd>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></code></dd>
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<pre>public&nbsp;int&nbsp;hashCode()</pre>
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<dd><code><a href="../../../../org/apache/hadoop/mapreduce/ID.html#hashCode--">hashCode</a></code>&nbsp;in class&nbsp;<code><a href="../../../../org/apache/hadoop/mapreduce/ID.html" title="class in org.apache.hadoop.mapreduce">ID</a></code></dd>
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<pre>public&nbsp;int&nbsp;compareTo(<a href="../../../../org/apache/hadoop/mapreduce/ID.html" title="class in org.apache.hadoop.mapreduce">ID</a>&nbsp;o)</pre>
<div class="block">Compare TaskIds by first tipIds, then by task numbers.</div>
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<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Comparable.html?is-external=true#compareTo-T-" title="class or interface in java.lang">compareTo</a></code>&nbsp;in interface&nbsp;<code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Comparable.html?is-external=true" title="class or interface in java.lang">Comparable</a>&lt;<a href="../../../../org/apache/hadoop/mapreduce/ID.html" title="class in org.apache.hadoop.mapreduce">ID</a>&gt;</code></dd>
<dt><span class="overrideSpecifyLabel">Overrides:</span></dt>
<dd><code><a href="../../../../org/apache/hadoop/mapreduce/ID.html#compareTo-org.apache.hadoop.mapreduce.ID-">compareTo</a></code>&nbsp;in class&nbsp;<code><a href="../../../../org/apache/hadoop/mapreduce/ID.html" title="class in org.apache.hadoop.mapreduce">ID</a></code></dd>
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<pre>public&nbsp;<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>&nbsp;toString()</pre>
<dl>
<dt><span class="overrideSpecifyLabel">Overrides:</span></dt>
<dd><code><a href="../../../../org/apache/hadoop/mapreduce/ID.html#toString--">toString</a></code>&nbsp;in class&nbsp;<code><a href="../../../../org/apache/hadoop/mapreduce/ID.html" title="class in org.apache.hadoop.mapreduce">ID</a></code></dd>
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<pre>public static&nbsp;<a href="../../../../org/apache/hadoop/mapreduce/TaskAttemptID.html" title="class in org.apache.hadoop.mapreduce">TaskAttemptID</a>&nbsp;forName(<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>&nbsp;str)
throws <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></pre>
<div class="block">Construct a TaskAttemptID object from given string</div>
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<dt><span class="returnLabel">Returns:</span></dt>
<dd>constructed TaskAttemptID object or null if the given String is null</dd>
<dt><span class="throwsLabel">Throws:</span></dt>
<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> - if the given string is malformed</dd>
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