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6<TITLE>
7TaskID (Hadoop 0.20.1 API)
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18        parent.document.title="TaskID (Hadoop 0.20.1 API)";
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58&nbsp;<A HREF="../../../../org/apache/hadoop/mapred/TaskGraphServlet.html" title="class in org.apache.hadoop.mapred"><B>PREV CLASS</B></A>&nbsp;
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79  SUMMARY:&nbsp;NESTED&nbsp;|&nbsp;<A HREF="#fields_inherited_from_class_org.apache.hadoop.mapreduce.TaskID">FIELD</A>&nbsp;|&nbsp;<A HREF="#constructor_summary">CONSTR</A>&nbsp;|&nbsp;<A HREF="#method_summary">METHOD</A></FONT></TD>
80<TD VALIGN="top" CLASS="NavBarCell3"><FONT SIZE="-2">
81DETAIL:&nbsp;FIELD&nbsp;|&nbsp;<A HREF="#constructor_detail">CONSTR</A>&nbsp;|&nbsp;<A HREF="#method_detail">METHOD</A></FONT></TD>
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87<HR>
88<!-- ======== START OF CLASS DATA ======== -->
89<H2>
90<FONT SIZE="-1">
91org.apache.hadoop.mapred</FONT>
92<BR>
93Class TaskID</H2>
94<PRE>
95<A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">java.lang.Object</A>
96  <IMG SRC="../../../../resources/inherit.gif" ALT="extended by "><A HREF="../../../../org/apache/hadoop/mapreduce/ID.html" title="class in org.apache.hadoop.mapreduce">org.apache.hadoop.mapreduce.ID</A>
97      <IMG SRC="../../../../resources/inherit.gif" ALT="extended by "><A HREF="../../../../org/apache/hadoop/mapred/ID.html" title="class in org.apache.hadoop.mapred">org.apache.hadoop.mapred.ID</A>
98          <IMG SRC="../../../../resources/inherit.gif" ALT="extended by "><A HREF="../../../../org/apache/hadoop/mapreduce/TaskID.html" title="class in org.apache.hadoop.mapreduce">org.apache.hadoop.mapreduce.TaskID</A>
99              <IMG SRC="../../../../resources/inherit.gif" ALT="extended by "><B>org.apache.hadoop.mapred.TaskID</B>
100</PRE>
101<DL>
102<DT><B>All Implemented Interfaces:</B> <DD><A HREF="http://java.sun.com/javase/6/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>
103</DL>
104<HR>
105<B>Deprecated.</B>
106<P>
107<DL>
108<DT><PRE><FONT SIZE="-1"><A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Deprecated.html?is-external=true" title="class or interface in java.lang">@Deprecated</A>
109</FONT>public class <B>TaskID</B><DT>extends <A HREF="../../../../org/apache/hadoop/mapreduce/TaskID.html" title="class in org.apache.hadoop.mapreduce">TaskID</A></DL>
110</PRE>
111
112<P>
113TaskID represents the immutable and unique identifier for
114 a Map or Reduce Task. Each TaskID encompasses multiple attempts made to
115 execute the Map or Reduce Task, each of which are uniquely indentified by
116 their TaskAttemptID.
117 
118 TaskID consists of 3 parts. First part is the <A HREF="../../../../org/apache/hadoop/mapred/JobID.html" title="class in org.apache.hadoop.mapred"><CODE>JobID</CODE></A>, that this
119 TaskInProgress belongs to. Second part of the TaskID is either 'm' or 'r'
120 representing whether the task is a map task or a reduce task.
121 And the third part is the task number. <br> 
122 An example TaskID is :
123 <code>task_200707121733_0003_m_000005</code> , which represents the
124 fifth map task in the third job running at the jobtracker
125 started at <code>200707121733</code>.
126 <p>
127 Applications should never construct or parse TaskID strings
128 , but rather use appropriate constructors or <A HREF="../../../../org/apache/hadoop/mapred/TaskID.html#forName(java.lang.String)"><CODE>forName(String)</CODE></A> 
129 method.
130<P>
131
132<P>
133<DL>
134<DT><B>See Also:</B><DD><A HREF="../../../../org/apache/hadoop/mapred/JobID.html" title="class in org.apache.hadoop.mapred"><CODE>JobID</CODE></A>,
135<A HREF="../../../../org/apache/hadoop/mapred/TaskAttemptID.html" title="class in org.apache.hadoop.mapred"><CODE>TaskAttemptID</CODE></A></DL>
136<HR>
137
138<P>
139<!-- =========== FIELD SUMMARY =========== -->
140
141<A NAME="field_summary"><!-- --></A>
142<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
143<TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor">
144<TH ALIGN="left" COLSPAN="2"><FONT SIZE="+2">
145<B>Field Summary</B></FONT></TH>
146</TR>
147</TABLE>
148&nbsp;<A NAME="fields_inherited_from_class_org.apache.hadoop.mapreduce.TaskID"><!-- --></A>
149<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
150<TR BGCOLOR="#EEEEFF" CLASS="TableSubHeadingColor">
151<TH ALIGN="left"><B>Fields inherited from class org.apache.hadoop.mapreduce.<A HREF="../../../../org/apache/hadoop/mapreduce/TaskID.html" title="class in org.apache.hadoop.mapreduce">TaskID</A></B></TH>
152</TR>
153<TR BGCOLOR="white" CLASS="TableRowColor">
154<TD><CODE><A HREF="../../../../org/apache/hadoop/mapreduce/TaskID.html#idFormat">idFormat</A>, <A HREF="../../../../org/apache/hadoop/mapreduce/TaskID.html#TASK">TASK</A></CODE></TD>
155</TR>
156</TABLE>
157&nbsp;<A NAME="fields_inherited_from_class_org.apache.hadoop.mapreduce.ID"><!-- --></A>
158<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
159<TR BGCOLOR="#EEEEFF" CLASS="TableSubHeadingColor">
160<TH ALIGN="left"><B>Fields inherited from class org.apache.hadoop.mapreduce.<A HREF="../../../../org/apache/hadoop/mapreduce/ID.html" title="class in org.apache.hadoop.mapreduce">ID</A></B></TH>
161</TR>
162<TR BGCOLOR="white" CLASS="TableRowColor">
163<TD><CODE><A HREF="../../../../org/apache/hadoop/mapreduce/ID.html#id">id</A>, <A HREF="../../../../org/apache/hadoop/mapreduce/ID.html#SEPARATOR">SEPARATOR</A></CODE></TD>
164</TR>
165</TABLE>
166&nbsp;
167<!-- ======== CONSTRUCTOR SUMMARY ======== -->
168
169<A NAME="constructor_summary"><!-- --></A>
170<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
171<TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor">
172<TH ALIGN="left" COLSPAN="2"><FONT SIZE="+2">
173<B>Constructor Summary</B></FONT></TH>
174</TR>
175<TR BGCOLOR="white" CLASS="TableRowColor">
176<TD><CODE><B><A HREF="../../../../org/apache/hadoop/mapred/TaskID.html#TaskID()">TaskID</A></B>()</CODE>
177
178<BR>
179&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<B>Deprecated.</B>&nbsp;&nbsp;</TD>
180</TR>
181<TR BGCOLOR="white" CLASS="TableRowColor">
182<TD><CODE><B><A HREF="../../../../org/apache/hadoop/mapred/TaskID.html#TaskID(org.apache.hadoop.mapreduce.JobID, boolean, int)">TaskID</A></B>(<A HREF="../../../../org/apache/hadoop/mapreduce/JobID.html" title="class in org.apache.hadoop.mapreduce">JobID</A>&nbsp;jobId,
183       boolean&nbsp;isMap,
184       int&nbsp;id)</CODE>
185
186<BR>
187&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<B>Deprecated.</B>&nbsp;Constructs a TaskID object from given <A HREF="../../../../org/apache/hadoop/mapred/JobID.html" title="class in org.apache.hadoop.mapred"><CODE>JobID</CODE></A>.</TD>
188</TR>
189<TR BGCOLOR="white" CLASS="TableRowColor">
190<TD><CODE><B><A HREF="../../../../org/apache/hadoop/mapred/TaskID.html#TaskID(java.lang.String, int, boolean, int)">TaskID</A></B>(<A HREF="http://java.sun.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A>&nbsp;jtIdentifier,
191       int&nbsp;jobId,
192       boolean&nbsp;isMap,
193       int&nbsp;id)</CODE>
194
195<BR>
196&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<B>Deprecated.</B>&nbsp;Constructs a TaskInProgressId object from given parts.</TD>
197</TR>
198</TABLE>
199&nbsp;
200<!-- ========== METHOD SUMMARY =========== -->
201
202<A NAME="method_summary"><!-- --></A>
203<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
204<TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor">
205<TH ALIGN="left" COLSPAN="2"><FONT SIZE="+2">
206<B>Method Summary</B></FONT></TH>
207</TR>
208<TR BGCOLOR="white" CLASS="TableRowColor">
209<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
210<CODE>static&nbsp;<A HREF="../../../../org/apache/hadoop/mapred/TaskID.html" title="class in org.apache.hadoop.mapred">TaskID</A></CODE></FONT></TD>
211<TD><CODE><B><A HREF="../../../../org/apache/hadoop/mapred/TaskID.html#downgrade(org.apache.hadoop.mapreduce.TaskID)">downgrade</A></B>(<A HREF="../../../../org/apache/hadoop/mapreduce/TaskID.html" title="class in org.apache.hadoop.mapreduce">TaskID</A>&nbsp;old)</CODE>
212
213<BR>
214&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<B>Deprecated.</B>&nbsp;Downgrade a new TaskID to an old one</TD>
215</TR>
216<TR BGCOLOR="white" CLASS="TableRowColor">
217<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
218<CODE>static&nbsp;<A HREF="../../../../org/apache/hadoop/mapred/TaskID.html" title="class in org.apache.hadoop.mapred">TaskID</A></CODE></FONT></TD>
219<TD><CODE><B><A HREF="../../../../org/apache/hadoop/mapred/TaskID.html#forName(java.lang.String)">forName</A></B>(<A HREF="http://java.sun.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A>&nbsp;str)</CODE>
220
221<BR>
222&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<B>Deprecated.</B>&nbsp;&nbsp;</TD>
223</TR>
224<TR BGCOLOR="white" CLASS="TableRowColor">
225<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
226<CODE>&nbsp;<A HREF="../../../../org/apache/hadoop/mapred/JobID.html" title="class in org.apache.hadoop.mapred">JobID</A></CODE></FONT></TD>
227<TD><CODE><B><A HREF="../../../../org/apache/hadoop/mapred/TaskID.html#getJobID()">getJobID</A></B>()</CODE>
228
229<BR>
230&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<B>Deprecated.</B>&nbsp;Returns the <A HREF="../../../../org/apache/hadoop/mapreduce/JobID.html" title="class in org.apache.hadoop.mapreduce"><CODE>JobID</CODE></A> object that this tip belongs to</TD>
231</TR>
232<TR BGCOLOR="white" CLASS="TableRowColor">
233<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
234<CODE>static&nbsp;<A HREF="http://java.sun.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A></CODE></FONT></TD>
235<TD><CODE><B><A HREF="../../../../org/apache/hadoop/mapred/TaskID.html#getTaskIDsPattern(java.lang.String, java.lang.Integer, java.lang.Boolean, java.lang.Integer)">getTaskIDsPattern</A></B>(<A HREF="http://java.sun.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A>&nbsp;jtIdentifier,
236                  <A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Integer.html?is-external=true" title="class or interface in java.lang">Integer</A>&nbsp;jobId,
237                  <A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Boolean.html?is-external=true" title="class or interface in java.lang">Boolean</A>&nbsp;isMap,
238                  <A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Integer.html?is-external=true" title="class or interface in java.lang">Integer</A>&nbsp;taskId)</CODE>
239
240<BR>
241&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<B>Deprecated.</B>&nbsp;</TD>
242</TR>
243<TR BGCOLOR="white" CLASS="TableRowColor">
244<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
245<CODE>static&nbsp;<A HREF="../../../../org/apache/hadoop/mapred/TaskID.html" title="class in org.apache.hadoop.mapred">TaskID</A></CODE></FONT></TD>
246<TD><CODE><B><A HREF="../../../../org/apache/hadoop/mapred/TaskID.html#read(java.io.DataInput)">read</A></B>(<A HREF="http://java.sun.com/javase/6/docs/api/java/io/DataInput.html?is-external=true" title="class or interface in java.io">DataInput</A>&nbsp;in)</CODE>
247
248<BR>
249&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<B>Deprecated.</B>&nbsp;</TD>
250</TR>
251</TABLE>
252&nbsp;<A NAME="methods_inherited_from_class_org.apache.hadoop.mapreduce.TaskID"><!-- --></A>
253<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
254<TR BGCOLOR="#EEEEFF" CLASS="TableSubHeadingColor">
255<TH ALIGN="left"><B>Methods inherited from class org.apache.hadoop.mapreduce.<A HREF="../../../../org/apache/hadoop/mapreduce/TaskID.html" title="class in org.apache.hadoop.mapreduce">TaskID</A></B></TH>
256</TR>
257<TR BGCOLOR="white" CLASS="TableRowColor">
258<TD><CODE><A HREF="../../../../org/apache/hadoop/mapreduce/TaskID.html#appendTo(java.lang.StringBuilder)">appendTo</A>, <A HREF="../../../../org/apache/hadoop/mapreduce/TaskID.html#compareTo(org.apache.hadoop.mapreduce.ID)">compareTo</A>, <A HREF="../../../../org/apache/hadoop/mapreduce/TaskID.html#equals(java.lang.Object)">equals</A>, <A HREF="../../../../org/apache/hadoop/mapreduce/TaskID.html#hashCode()">hashCode</A>, <A HREF="../../../../org/apache/hadoop/mapreduce/TaskID.html#isMap()">isMap</A>, <A HREF="../../../../org/apache/hadoop/mapreduce/TaskID.html#readFields(java.io.DataInput)">readFields</A>, <A HREF="../../../../org/apache/hadoop/mapreduce/TaskID.html#toString()">toString</A>, <A HREF="../../../../org/apache/hadoop/mapreduce/TaskID.html#write(java.io.DataOutput)">write</A></CODE></TD>
259</TR>
260</TABLE>
261&nbsp;<A NAME="methods_inherited_from_class_org.apache.hadoop.mapreduce.ID"><!-- --></A>
262<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
263<TR BGCOLOR="#EEEEFF" CLASS="TableSubHeadingColor">
264<TH ALIGN="left"><B>Methods inherited from class org.apache.hadoop.mapreduce.<A HREF="../../../../org/apache/hadoop/mapreduce/ID.html" title="class in org.apache.hadoop.mapreduce">ID</A></B></TH>
265</TR>
266<TR BGCOLOR="white" CLASS="TableRowColor">
267<TD><CODE><A HREF="../../../../org/apache/hadoop/mapreduce/ID.html#getId()">getId</A></CODE></TD>
268</TR>
269</TABLE>
270&nbsp;<A NAME="methods_inherited_from_class_java.lang.Object"><!-- --></A>
271<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
272<TR BGCOLOR="#EEEEFF" CLASS="TableSubHeadingColor">
273<TH ALIGN="left"><B>Methods inherited from class java.lang.<A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</A></B></TH>
274</TR>
275<TR BGCOLOR="white" CLASS="TableRowColor">
276<TD><CODE><A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Object.html?is-external=true#clone()" title="class or interface in java.lang">clone</A>, <A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Object.html?is-external=true#finalize()" title="class or interface in java.lang">finalize</A>, <A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Object.html?is-external=true#getClass()" title="class or interface in java.lang">getClass</A>, <A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Object.html?is-external=true#notify()" title="class or interface in java.lang">notify</A>, <A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Object.html?is-external=true#notifyAll()" title="class or interface in java.lang">notifyAll</A>, <A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Object.html?is-external=true#wait()" title="class or interface in java.lang">wait</A>, <A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Object.html?is-external=true#wait(long)" title="class or interface in java.lang">wait</A>, <A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Object.html?is-external=true#wait(long, int)" title="class or interface in java.lang">wait</A></CODE></TD>
277</TR>
278</TABLE>
279&nbsp;
280<P>
281
282<!-- ========= CONSTRUCTOR DETAIL ======== -->
283
284<A NAME="constructor_detail"><!-- --></A>
285<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
286<TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor">
287<TH ALIGN="left" COLSPAN="1"><FONT SIZE="+2">
288<B>Constructor Detail</B></FONT></TH>
289</TR>
290</TABLE>
291
292<A NAME="TaskID(org.apache.hadoop.mapreduce.JobID, boolean, int)"><!-- --></A><H3>
293TaskID</H3>
294<PRE>
295public <B>TaskID</B>(<A HREF="../../../../org/apache/hadoop/mapreduce/JobID.html" title="class in org.apache.hadoop.mapreduce">JobID</A>&nbsp;jobId,
296              boolean&nbsp;isMap,
297              int&nbsp;id)</PRE>
298<DL>
299<DD><B>Deprecated.</B>&nbsp;<DD>Constructs a TaskID object from given <A HREF="../../../../org/apache/hadoop/mapred/JobID.html" title="class in org.apache.hadoop.mapred"><CODE>JobID</CODE></A>.
300<P>
301<DL>
302<DT><B>Parameters:</B><DD><CODE>jobId</CODE> - JobID that this tip belongs to<DD><CODE>isMap</CODE> - whether the tip is a map<DD><CODE>id</CODE> - the tip number</DL>
303</DL>
304<HR>
305
306<A NAME="TaskID(java.lang.String, int, boolean, int)"><!-- --></A><H3>
307TaskID</H3>
308<PRE>
309public <B>TaskID</B>(<A HREF="http://java.sun.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A>&nbsp;jtIdentifier,
310              int&nbsp;jobId,
311              boolean&nbsp;isMap,
312              int&nbsp;id)</PRE>
313<DL>
314<DD><B>Deprecated.</B>&nbsp;<DD>Constructs a TaskInProgressId object from given parts.
315<P>
316<DL>
317<DT><B>Parameters:</B><DD><CODE>jtIdentifier</CODE> - jobTracker identifier<DD><CODE>jobId</CODE> - job number<DD><CODE>isMap</CODE> - whether the tip is a map<DD><CODE>id</CODE> - the tip number</DL>
318</DL>
319<HR>
320
321<A NAME="TaskID()"><!-- --></A><H3>
322TaskID</H3>
323<PRE>
324public <B>TaskID</B>()</PRE>
325<DL>
326<DD><B>Deprecated.</B>&nbsp;</DL>
327
328<!-- ============ METHOD DETAIL ========== -->
329
330<A NAME="method_detail"><!-- --></A>
331<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
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333<TH ALIGN="left" COLSPAN="1"><FONT SIZE="+2">
334<B>Method Detail</B></FONT></TH>
335</TR>
336</TABLE>
337
338<A NAME="downgrade(org.apache.hadoop.mapreduce.TaskID)"><!-- --></A><H3>
339downgrade</H3>
340<PRE>
341public static <A HREF="../../../../org/apache/hadoop/mapred/TaskID.html" title="class in org.apache.hadoop.mapred">TaskID</A> <B>downgrade</B>(<A HREF="../../../../org/apache/hadoop/mapreduce/TaskID.html" title="class in org.apache.hadoop.mapreduce">TaskID</A>&nbsp;old)</PRE>
342<DL>
343<DD><B>Deprecated.</B>&nbsp;<DD>Downgrade a new TaskID to an old one
344<P>
345<DD><DL>
346<DT><B>Parameters:</B><DD><CODE>old</CODE> - a new or old TaskID
347<DT><B>Returns:</B><DD>either old or a new TaskID build to match old</DL>
348</DD>
349</DL>
350<HR>
351
352<A NAME="read(java.io.DataInput)"><!-- --></A><H3>
353read</H3>
354<PRE>
355<FONT SIZE="-1"><A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Deprecated.html?is-external=true" title="class or interface in java.lang">@Deprecated</A>
356</FONT>public static <A HREF="../../../../org/apache/hadoop/mapred/TaskID.html" title="class in org.apache.hadoop.mapred">TaskID</A> <B>read</B>(<A HREF="http://java.sun.com/javase/6/docs/api/java/io/DataInput.html?is-external=true" title="class or interface in java.io">DataInput</A>&nbsp;in)
357                   throws <A HREF="http://java.sun.com/javase/6/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</A></PRE>
358<DL>
359<DD><B>Deprecated.</B>&nbsp;
360<P>
361<DD><DL>
362
363<DT><B>Throws:</B>
364<DD><CODE><A HREF="http://java.sun.com/javase/6/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</A></CODE></DL>
365</DD>
366</DL>
367<HR>
368
369<A NAME="getJobID()"><!-- --></A><H3>
370getJobID</H3>
371<PRE>
372public <A HREF="../../../../org/apache/hadoop/mapred/JobID.html" title="class in org.apache.hadoop.mapred">JobID</A> <B>getJobID</B>()</PRE>
373<DL>
374<DD><B>Deprecated.</B>&nbsp;<DD><B>Description copied from class: <CODE><A HREF="../../../../org/apache/hadoop/mapreduce/TaskID.html#getJobID()">TaskID</A></CODE></B></DD>
375<DD>Returns the <A HREF="../../../../org/apache/hadoop/mapreduce/JobID.html" title="class in org.apache.hadoop.mapreduce"><CODE>JobID</CODE></A> object that this tip belongs to
376<P>
377<DD><DL>
378<DT><B>Overrides:</B><DD><CODE><A HREF="../../../../org/apache/hadoop/mapreduce/TaskID.html#getJobID()">getJobID</A></CODE> in class <CODE><A HREF="../../../../org/apache/hadoop/mapreduce/TaskID.html" title="class in org.apache.hadoop.mapreduce">TaskID</A></CODE></DL>
379</DD>
380<DD><DL>
381</DL>
382</DD>
383</DL>
384<HR>
385
386<A NAME="getTaskIDsPattern(java.lang.String, java.lang.Integer, java.lang.Boolean, java.lang.Integer)"><!-- --></A><H3>
387getTaskIDsPattern</H3>
388<PRE>
389<FONT SIZE="-1"><A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Deprecated.html?is-external=true" title="class or interface in java.lang">@Deprecated</A>
390</FONT>public static <A HREF="http://java.sun.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A> <B>getTaskIDsPattern</B>(<A HREF="http://java.sun.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A>&nbsp;jtIdentifier,
391                                                  <A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Integer.html?is-external=true" title="class or interface in java.lang">Integer</A>&nbsp;jobId,
392                                                  <A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Boolean.html?is-external=true" title="class or interface in java.lang">Boolean</A>&nbsp;isMap,
393                                                  <A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Integer.html?is-external=true" title="class or interface in java.lang">Integer</A>&nbsp;taskId)</PRE>
394<DL>
395<DD><B>Deprecated.</B>&nbsp;
396<P>
397<DD>Returns a regex pattern which matches task IDs. Arguments can
398 be given null, in which case that part of the regex will be generic. 
399 For example to obtain a regex matching <i>the first map task</i> 
400 of <i>any jobtracker</i>, of <i>any job</i>, we would use :
401 <pre> 
402 TaskID.getTaskIDsPattern(null, null, true, 1);
403 </pre>
404 which will return :
405 <pre> "task_[^_]*_[0-9]*_m_000001*" </pre>
406<P>
407<DD><DL>
408<DT><B>Parameters:</B><DD><CODE>jtIdentifier</CODE> - jobTracker identifier, or null<DD><CODE>jobId</CODE> - job number, or null<DD><CODE>isMap</CODE> - whether the tip is a map, or null<DD><CODE>taskId</CODE> - taskId number, or null
409<DT><B>Returns:</B><DD>a regex pattern matching TaskIDs</DL>
410</DD>
411</DL>
412<HR>
413
414<A NAME="forName(java.lang.String)"><!-- --></A><H3>
415forName</H3>
416<PRE>
417public static <A HREF="../../../../org/apache/hadoop/mapred/TaskID.html" title="class in org.apache.hadoop.mapred">TaskID</A> <B>forName</B>(<A HREF="http://java.sun.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A>&nbsp;str)
418                      throws <A HREF="http://java.sun.com/javase/6/docs/api/java/lang/IllegalArgumentException.html?is-external=true" title="class or interface in java.lang">IllegalArgumentException</A></PRE>
419<DL>
420<DD><B>Deprecated.</B>&nbsp;<DD><DL>
421
422<DT><B>Throws:</B>
423<DD><CODE><A HREF="http://java.sun.com/javase/6/docs/api/java/lang/IllegalArgumentException.html?is-external=true" title="class or interface in java.lang">IllegalArgumentException</A></CODE></DL>
424</DD>
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