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7JobHistory.Task (Hadoop 0.20.1 API)
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91org.apache.hadoop.mapred</FONT>
92<BR>
93Class JobHistory.Task</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 "><B>org.apache.hadoop.mapred.JobHistory.Task</B>
97</PRE>
98<DL>
99<DT><B>Direct Known Subclasses:</B> <DD><A HREF="../../../../org/apache/hadoop/mapred/JobHistory.TaskAttempt.html" title="class in org.apache.hadoop.mapred">JobHistory.TaskAttempt</A></DD>
100</DL>
101<DL>
102<DT><B>Enclosing class:</B><DD><A HREF="../../../../org/apache/hadoop/mapred/JobHistory.html" title="class in org.apache.hadoop.mapred">JobHistory</A></DD>
103</DL>
104<HR>
105<DL>
106<DT><PRE>public static class <B>JobHistory.Task</B><DT>extends <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></DL>
107</PRE>
108
109<P>
110Helper class for logging or reading back events related to Task's start, finish or failure.
111 All events logged by this class are logged in a separate file per job in
112 job tracker history. These events map to TIPs in jobtracker.
113<P>
114
115<P>
116<HR>
117
118<P>
119
120<!-- ======== CONSTRUCTOR SUMMARY ======== -->
121
122<A NAME="constructor_summary"><!-- --></A>
123<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
124<TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor">
125<TH ALIGN="left" COLSPAN="2"><FONT SIZE="+2">
126<B>Constructor Summary</B></FONT></TH>
127</TR>
128<TR BGCOLOR="white" CLASS="TableRowColor">
129<TD><CODE><B><A HREF="../../../../org/apache/hadoop/mapred/JobHistory.Task.html#JobHistory.Task()">JobHistory.Task</A></B>()</CODE>
130
131<BR>
132&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</TD>
133</TR>
134</TABLE>
135&nbsp;
136<!-- ========== METHOD SUMMARY =========== -->
137
138<A NAME="method_summary"><!-- --></A>
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141<TH ALIGN="left" COLSPAN="2"><FONT SIZE="+2">
142<B>Method Summary</B></FONT></TH>
143</TR>
144<TR BGCOLOR="white" CLASS="TableRowColor">
145<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
146<CODE>&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>
147<TD><CODE><B><A HREF="../../../../org/apache/hadoop/mapred/JobHistory.Task.html#get(org.apache.hadoop.mapred.JobHistory.Keys)">get</A></B>(<A HREF="../../../../org/apache/hadoop/mapred/JobHistory.Keys.html" title="enum in org.apache.hadoop.mapred">JobHistory.Keys</A>&nbsp;k)</CODE>
148
149<BR>
150&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Get 'String' value for given key.</TD>
151</TR>
152<TR BGCOLOR="white" CLASS="TableRowColor">
153<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
154<CODE>&nbsp;int</CODE></FONT></TD>
155<TD><CODE><B><A HREF="../../../../org/apache/hadoop/mapred/JobHistory.Task.html#getInt(org.apache.hadoop.mapred.JobHistory.Keys)">getInt</A></B>(<A HREF="../../../../org/apache/hadoop/mapred/JobHistory.Keys.html" title="enum in org.apache.hadoop.mapred">JobHistory.Keys</A>&nbsp;k)</CODE>
156
157<BR>
158&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Convert value from history to int and return.</TD>
159</TR>
160<TR BGCOLOR="white" CLASS="TableRowColor">
161<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
162<CODE>&nbsp;long</CODE></FONT></TD>
163<TD><CODE><B><A HREF="../../../../org/apache/hadoop/mapred/JobHistory.Task.html#getLong(org.apache.hadoop.mapred.JobHistory.Keys)">getLong</A></B>(<A HREF="../../../../org/apache/hadoop/mapred/JobHistory.Keys.html" title="enum in org.apache.hadoop.mapred">JobHistory.Keys</A>&nbsp;k)</CODE>
164
165<BR>
166&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Convert value from history to int and return.</TD>
167</TR>
168<TR BGCOLOR="white" CLASS="TableRowColor">
169<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
170<CODE>&nbsp;<A HREF="http://java.sun.com/javase/6/docs/api/java/util/Map.html?is-external=true" title="class or interface in java.util">Map</A>&lt;<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>,<A HREF="../../../../org/apache/hadoop/mapred/JobHistory.TaskAttempt.html" title="class in org.apache.hadoop.mapred">JobHistory.TaskAttempt</A>&gt;</CODE></FONT></TD>
171<TD><CODE><B><A HREF="../../../../org/apache/hadoop/mapred/JobHistory.Task.html#getTaskAttempts()">getTaskAttempts</A></B>()</CODE>
172
173<BR>
174&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Returns all task attempts for this task.</TD>
175</TR>
176<TR BGCOLOR="white" CLASS="TableRowColor">
177<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
178<CODE>&nbsp;<A HREF="http://java.sun.com/javase/6/docs/api/java/util/Map.html?is-external=true" title="class or interface in java.util">Map</A>&lt;<A HREF="../../../../org/apache/hadoop/mapred/JobHistory.Keys.html" title="enum in org.apache.hadoop.mapred">JobHistory.Keys</A>,<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>&gt;</CODE></FONT></TD>
179<TD><CODE><B><A HREF="../../../../org/apache/hadoop/mapred/JobHistory.Task.html#getValues()">getValues</A></B>()</CODE>
180
181<BR>
182&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Returns Map containing all key-values.</TD>
183</TR>
184<TR BGCOLOR="white" CLASS="TableRowColor">
185<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
186<CODE>&nbsp;void</CODE></FONT></TD>
187<TD><CODE><B><A HREF="../../../../org/apache/hadoop/mapred/JobHistory.Task.html#handle(java.util.Map)">handle</A></B>(<A HREF="http://java.sun.com/javase/6/docs/api/java/util/Map.html?is-external=true" title="class or interface in java.util">Map</A>&lt;<A HREF="../../../../org/apache/hadoop/mapred/JobHistory.Keys.html" title="enum in org.apache.hadoop.mapred">JobHistory.Keys</A>,<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>&gt;&nbsp;values)</CODE>
188
189<BR>
190&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Reads values back from the history, input is same Map as passed to Listener by parseHistory().</TD>
191</TR>
192<TR BGCOLOR="white" CLASS="TableRowColor">
193<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
194<CODE>static&nbsp;void</CODE></FONT></TD>
195<TD><CODE><B><A HREF="../../../../org/apache/hadoop/mapred/JobHistory.Task.html#logFailed(org.apache.hadoop.mapred.TaskID, java.lang.String, long, java.lang.String)">logFailed</A></B>(<A HREF="../../../../org/apache/hadoop/mapred/TaskID.html" title="class in org.apache.hadoop.mapred">TaskID</A>&nbsp;taskId,
196          <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;taskType,
197          long&nbsp;time,
198          <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;error)</CODE>
199
200<BR>
201&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Log job failed event.</TD>
202</TR>
203<TR BGCOLOR="white" CLASS="TableRowColor">
204<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
205<CODE>static&nbsp;void</CODE></FONT></TD>
206<TD><CODE><B><A HREF="../../../../org/apache/hadoop/mapred/JobHistory.Task.html#logFailed(org.apache.hadoop.mapred.TaskID, java.lang.String, long, java.lang.String, org.apache.hadoop.mapred.TaskAttemptID)">logFailed</A></B>(<A HREF="../../../../org/apache/hadoop/mapred/TaskID.html" title="class in org.apache.hadoop.mapred">TaskID</A>&nbsp;taskId,
207          <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;taskType,
208          long&nbsp;time,
209          <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;error,
210          <A HREF="../../../../org/apache/hadoop/mapred/TaskAttemptID.html" title="class in org.apache.hadoop.mapred">TaskAttemptID</A>&nbsp;failedDueToAttempt)</CODE>
211
212<BR>
213&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</TD>
214</TR>
215<TR BGCOLOR="white" CLASS="TableRowColor">
216<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
217<CODE>static&nbsp;void</CODE></FONT></TD>
218<TD><CODE><B><A HREF="../../../../org/apache/hadoop/mapred/JobHistory.Task.html#logFinished(org.apache.hadoop.mapred.TaskID, java.lang.String, long, org.apache.hadoop.mapred.Counters)">logFinished</A></B>(<A HREF="../../../../org/apache/hadoop/mapred/TaskID.html" title="class in org.apache.hadoop.mapred">TaskID</A>&nbsp;taskId,
219            <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;taskType,
220            long&nbsp;finishTime,
221            <A HREF="../../../../org/apache/hadoop/mapred/Counters.html" title="class in org.apache.hadoop.mapred">Counters</A>&nbsp;counters)</CODE>
222
223<BR>
224&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Log finish time of task.</TD>
225</TR>
226<TR BGCOLOR="white" CLASS="TableRowColor">
227<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
228<CODE>static&nbsp;void</CODE></FONT></TD>
229<TD><CODE><B><A HREF="../../../../org/apache/hadoop/mapred/JobHistory.Task.html#logStarted(org.apache.hadoop.mapred.TaskID, java.lang.String, long, java.lang.String)">logStarted</A></B>(<A HREF="../../../../org/apache/hadoop/mapred/TaskID.html" title="class in org.apache.hadoop.mapred">TaskID</A>&nbsp;taskId,
230           <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;taskType,
231           long&nbsp;startTime,
232           <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;splitLocations)</CODE>
233
234<BR>
235&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Log start time of task (TIP).</TD>
236</TR>
237<TR BGCOLOR="white" CLASS="TableRowColor">
238<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
239<CODE>static&nbsp;void</CODE></FONT></TD>
240<TD><CODE><B><A HREF="../../../../org/apache/hadoop/mapred/JobHistory.Task.html#logUpdates(org.apache.hadoop.mapred.TaskID, long)">logUpdates</A></B>(<A HREF="../../../../org/apache/hadoop/mapred/TaskID.html" title="class in org.apache.hadoop.mapred">TaskID</A>&nbsp;taskId,
241           long&nbsp;finishTime)</CODE>
242
243<BR>
244&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Update the finish time of task.</TD>
245</TR>
246<TR BGCOLOR="white" CLASS="TableRowColor">
247<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
248<CODE>&nbsp;void</CODE></FONT></TD>
249<TD><CODE><B><A HREF="../../../../org/apache/hadoop/mapred/JobHistory.Task.html#set(org.apache.hadoop.mapred.JobHistory.Keys, java.lang.String)">set</A></B>(<A HREF="../../../../org/apache/hadoop/mapred/JobHistory.Keys.html" title="enum in org.apache.hadoop.mapred">JobHistory.Keys</A>&nbsp;k,
250    <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;s)</CODE>
251
252<BR>
253&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Set value for the key.</TD>
254</TR>
255<TR BGCOLOR="white" CLASS="TableRowColor">
256<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
257<CODE>&nbsp;void</CODE></FONT></TD>
258<TD><CODE><B><A HREF="../../../../org/apache/hadoop/mapred/JobHistory.Task.html#set(java.util.Map)">set</A></B>(<A HREF="http://java.sun.com/javase/6/docs/api/java/util/Map.html?is-external=true" title="class or interface in java.util">Map</A>&lt;<A HREF="../../../../org/apache/hadoop/mapred/JobHistory.Keys.html" title="enum in org.apache.hadoop.mapred">JobHistory.Keys</A>,<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>&gt;&nbsp;m)</CODE>
259
260<BR>
261&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Adds all values in the Map argument to its own values.</TD>
262</TR>
263</TABLE>
264&nbsp;<A NAME="methods_inherited_from_class_java.lang.Object"><!-- --></A>
265<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
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267<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>
268</TR>
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273&nbsp;
274<P>
275
276<!-- ========= CONSTRUCTOR DETAIL ======== -->
277
278<A NAME="constructor_detail"><!-- --></A>
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280<TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor">
281<TH ALIGN="left" COLSPAN="1"><FONT SIZE="+2">
282<B>Constructor Detail</B></FONT></TH>
283</TR>
284</TABLE>
285
286<A NAME="JobHistory.Task()"><!-- --></A><H3>
287JobHistory.Task</H3>
288<PRE>
289public <B>JobHistory.Task</B>()</PRE>
290<DL>
291</DL>
292
293<!-- ============ METHOD DETAIL ========== -->
294
295<A NAME="method_detail"><!-- --></A>
296<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
297<TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor">
298<TH ALIGN="left" COLSPAN="1"><FONT SIZE="+2">
299<B>Method Detail</B></FONT></TH>
300</TR>
301</TABLE>
302
303<A NAME="logStarted(org.apache.hadoop.mapred.TaskID, java.lang.String, long, java.lang.String)"><!-- --></A><H3>
304logStarted</H3>
305<PRE>
306public static void <B>logStarted</B>(<A HREF="../../../../org/apache/hadoop/mapred/TaskID.html" title="class in org.apache.hadoop.mapred">TaskID</A>&nbsp;taskId,
307                              <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;taskType,
308                              long&nbsp;startTime,
309                              <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;splitLocations)</PRE>
310<DL>
311<DD>Log start time of task (TIP).
312<P>
313<DD><DL>
314<DT><B>Parameters:</B><DD><CODE>taskId</CODE> - task id<DD><CODE>taskType</CODE> - MAP or REDUCE<DD><CODE>startTime</CODE> - startTime of tip.</DL>
315</DD>
316</DL>
317<HR>
318
319<A NAME="logFinished(org.apache.hadoop.mapred.TaskID, java.lang.String, long, org.apache.hadoop.mapred.Counters)"><!-- --></A><H3>
320logFinished</H3>
321<PRE>
322public static void <B>logFinished</B>(<A HREF="../../../../org/apache/hadoop/mapred/TaskID.html" title="class in org.apache.hadoop.mapred">TaskID</A>&nbsp;taskId,
323                               <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;taskType,
324                               long&nbsp;finishTime,
325                               <A HREF="../../../../org/apache/hadoop/mapred/Counters.html" title="class in org.apache.hadoop.mapred">Counters</A>&nbsp;counters)</PRE>
326<DL>
327<DD>Log finish time of task.
328<P>
329<DD><DL>
330<DT><B>Parameters:</B><DD><CODE>taskId</CODE> - task id<DD><CODE>taskType</CODE> - MAP or REDUCE<DD><CODE>finishTime</CODE> - finish timeof task in ms</DL>
331</DD>
332</DL>
333<HR>
334
335<A NAME="logUpdates(org.apache.hadoop.mapred.TaskID, long)"><!-- --></A><H3>
336logUpdates</H3>
337<PRE>
338public static void <B>logUpdates</B>(<A HREF="../../../../org/apache/hadoop/mapred/TaskID.html" title="class in org.apache.hadoop.mapred">TaskID</A>&nbsp;taskId,
339                              long&nbsp;finishTime)</PRE>
340<DL>
341<DD>Update the finish time of task.
342<P>
343<DD><DL>
344<DT><B>Parameters:</B><DD><CODE>taskId</CODE> - task id<DD><CODE>finishTime</CODE> - finish time of task in ms</DL>
345</DD>
346</DL>
347<HR>
348
349<A NAME="logFailed(org.apache.hadoop.mapred.TaskID, java.lang.String, long, java.lang.String)"><!-- --></A><H3>
350logFailed</H3>
351<PRE>
352public static void <B>logFailed</B>(<A HREF="../../../../org/apache/hadoop/mapred/TaskID.html" title="class in org.apache.hadoop.mapred">TaskID</A>&nbsp;taskId,
353                             <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;taskType,
354                             long&nbsp;time,
355                             <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;error)</PRE>
356<DL>
357<DD>Log job failed event.
358<P>
359<DD><DL>
360<DT><B>Parameters:</B><DD><CODE>taskId</CODE> - task id<DD><CODE>taskType</CODE> - MAP or REDUCE.<DD><CODE>time</CODE> - timestamp when job failed detected.<DD><CODE>error</CODE> - error message for failure.</DL>
361</DD>
362</DL>
363<HR>
364
365<A NAME="logFailed(org.apache.hadoop.mapred.TaskID, java.lang.String, long, java.lang.String, org.apache.hadoop.mapred.TaskAttemptID)"><!-- --></A><H3>
366logFailed</H3>
367<PRE>
368public static void <B>logFailed</B>(<A HREF="../../../../org/apache/hadoop/mapred/TaskID.html" title="class in org.apache.hadoop.mapred">TaskID</A>&nbsp;taskId,
369                             <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;taskType,
370                             long&nbsp;time,
371                             <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;error,
372                             <A HREF="../../../../org/apache/hadoop/mapred/TaskAttemptID.html" title="class in org.apache.hadoop.mapred">TaskAttemptID</A>&nbsp;failedDueToAttempt)</PRE>
373<DL>
374<DD><DL>
375<DT><B>Parameters:</B><DD><CODE>failedDueToAttempt</CODE> - The attempt that caused the failure, if any</DL>
376</DD>
377</DL>
378<HR>
379
380<A NAME="getTaskAttempts()"><!-- --></A><H3>
381getTaskAttempts</H3>
382<PRE>
383public <A HREF="http://java.sun.com/javase/6/docs/api/java/util/Map.html?is-external=true" title="class or interface in java.util">Map</A>&lt;<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>,<A HREF="../../../../org/apache/hadoop/mapred/JobHistory.TaskAttempt.html" title="class in org.apache.hadoop.mapred">JobHistory.TaskAttempt</A>&gt; <B>getTaskAttempts</B>()</PRE>
384<DL>
385<DD>Returns all task attempts for this task. <task attempt id - TaskAttempt>
386<P>
387<DD><DL>
388</DL>
389</DD>
390</DL>
391<HR>
392
393<A NAME="get(org.apache.hadoop.mapred.JobHistory.Keys)"><!-- --></A><H3>
394get</H3>
395<PRE>
396public <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>get</B>(<A HREF="../../../../org/apache/hadoop/mapred/JobHistory.Keys.html" title="enum in org.apache.hadoop.mapred">JobHistory.Keys</A>&nbsp;k)</PRE>
397<DL>
398<DD>Get 'String' value for given key. Most of the places use Strings as
399 values so the default get' method returns 'String'.  This method never returns
400 null to ease on GUIs. if no value is found it returns empty string ""
401<P>
402<DD><DL>
403<DT><B>Parameters:</B><DD><CODE>k</CODE> -
404<DT><B>Returns:</B><DD>if null it returns empty string - ""</DL>
405</DD>
406</DL>
407<HR>
408
409<A NAME="getInt(org.apache.hadoop.mapred.JobHistory.Keys)"><!-- --></A><H3>
410getInt</H3>
411<PRE>
412public int <B>getInt</B>(<A HREF="../../../../org/apache/hadoop/mapred/JobHistory.Keys.html" title="enum in org.apache.hadoop.mapred">JobHistory.Keys</A>&nbsp;k)</PRE>
413<DL>
414<DD>Convert value from history to int and return.
415 if no value is found it returns 0.
416<P>
417<DD><DL>
418<DT><B>Parameters:</B><DD><CODE>k</CODE> - key</DL>
419</DD>
420</DL>
421<HR>
422
423<A NAME="getLong(org.apache.hadoop.mapred.JobHistory.Keys)"><!-- --></A><H3>
424getLong</H3>
425<PRE>
426public long <B>getLong</B>(<A HREF="../../../../org/apache/hadoop/mapred/JobHistory.Keys.html" title="enum in org.apache.hadoop.mapred">JobHistory.Keys</A>&nbsp;k)</PRE>
427<DL>
428<DD>Convert value from history to int and return.
429 if no value is found it returns 0.
430<P>
431<DD><DL>
432<DT><B>Parameters:</B><DD><CODE>k</CODE> - </DL>
433</DD>
434</DL>
435<HR>
436
437<A NAME="set(org.apache.hadoop.mapred.JobHistory.Keys, java.lang.String)"><!-- --></A><H3>
438set</H3>
439<PRE>
440public void <B>set</B>(<A HREF="../../../../org/apache/hadoop/mapred/JobHistory.Keys.html" title="enum in org.apache.hadoop.mapred">JobHistory.Keys</A>&nbsp;k,
441                <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;s)</PRE>
442<DL>
443<DD>Set value for the key.
444<P>
445<DD><DL>
446<DT><B>Parameters:</B><DD><CODE>k</CODE> - <DD><CODE>s</CODE> - </DL>
447</DD>
448</DL>
449<HR>
450
451<A NAME="set(java.util.Map)"><!-- --></A><H3>
452set</H3>
453<PRE>
454public void <B>set</B>(<A HREF="http://java.sun.com/javase/6/docs/api/java/util/Map.html?is-external=true" title="class or interface in java.util">Map</A>&lt;<A HREF="../../../../org/apache/hadoop/mapred/JobHistory.Keys.html" title="enum in org.apache.hadoop.mapred">JobHistory.Keys</A>,<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>&gt;&nbsp;m)</PRE>
455<DL>
456<DD>Adds all values in the Map argument to its own values.
457<P>
458<DD><DL>
459<DT><B>Parameters:</B><DD><CODE>m</CODE> - </DL>
460</DD>
461</DL>
462<HR>
463
464<A NAME="handle(java.util.Map)"><!-- --></A><H3>
465handle</H3>
466<PRE>
467public void <B>handle</B>(<A HREF="http://java.sun.com/javase/6/docs/api/java/util/Map.html?is-external=true" title="class or interface in java.util">Map</A>&lt;<A HREF="../../../../org/apache/hadoop/mapred/JobHistory.Keys.html" title="enum in org.apache.hadoop.mapred">JobHistory.Keys</A>,<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>&gt;&nbsp;values)</PRE>
468<DL>
469<DD>Reads values back from the history, input is same Map as passed to Listener by parseHistory().
470<P>
471<DD><DL>
472<DT><B>Parameters:</B><DD><CODE>values</CODE> - </DL>
473</DD>
474</DL>
475<HR>
476
477<A NAME="getValues()"><!-- --></A><H3>
478getValues</H3>
479<PRE>
480public <A HREF="http://java.sun.com/javase/6/docs/api/java/util/Map.html?is-external=true" title="class or interface in java.util">Map</A>&lt;<A HREF="../../../../org/apache/hadoop/mapred/JobHistory.Keys.html" title="enum in org.apache.hadoop.mapred">JobHistory.Keys</A>,<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>&gt; <B>getValues</B>()</PRE>
481<DL>
482<DD>Returns Map containing all key-values.
483<P>
484<DD><DL>
485</DL>
486</DD>
487</DL>
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