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7Uses of Class org.apache.hadoop.mapreduce.JobContext (Hadoop 0.20.1 API)
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83<H2>
84<B>Uses of Class<br>org.apache.hadoop.mapreduce.JobContext</B></H2>
85</CENTER>
86
87<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
88<TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor">
89<TH ALIGN="left" COLSPAN="2"><FONT SIZE="+2">
90Packages that use <A HREF="../../../../../org/apache/hadoop/mapreduce/JobContext.html" title="class in org.apache.hadoop.mapreduce">JobContext</A></FONT></TH>
91</TR>
92<TR BGCOLOR="white" CLASS="TableRowColor">
93<TD><A HREF="#org.apache.hadoop.mapred"><B>org.apache.hadoop.mapred</B></A></TD>
94<TD>A software framework for easily writing applications which process vast
95amounts of data (multi-terabyte data-sets) parallelly on large clusters
96(thousands of nodes) built of commodity hardware in a reliable, fault-tolerant
97manner.&nbsp;</TD>
98</TR>
99<TR BGCOLOR="white" CLASS="TableRowColor">
100<TD><A HREF="#org.apache.hadoop.mapreduce"><B>org.apache.hadoop.mapreduce</B></A></TD>
101<TD>&nbsp;&nbsp;</TD>
102</TR>
103<TR BGCOLOR="white" CLASS="TableRowColor">
104<TD><A HREF="#org.apache.hadoop.mapreduce.lib.input"><B>org.apache.hadoop.mapreduce.lib.input</B></A></TD>
105<TD>&nbsp;&nbsp;</TD>
106</TR>
107<TR BGCOLOR="white" CLASS="TableRowColor">
108<TD><A HREF="#org.apache.hadoop.mapreduce.lib.map"><B>org.apache.hadoop.mapreduce.lib.map</B></A></TD>
109<TD>&nbsp;&nbsp;</TD>
110</TR>
111<TR BGCOLOR="white" CLASS="TableRowColor">
112<TD><A HREF="#org.apache.hadoop.mapreduce.lib.output"><B>org.apache.hadoop.mapreduce.lib.output</B></A></TD>
113<TD>&nbsp;&nbsp;</TD>
114</TR>
115</TABLE>
116&nbsp;
117<P>
118<A NAME="org.apache.hadoop.mapred"><!-- --></A>
119<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
120<TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor">
121<TH ALIGN="left" COLSPAN="2"><FONT SIZE="+2">
122Uses of <A HREF="../../../../../org/apache/hadoop/mapreduce/JobContext.html" title="class in org.apache.hadoop.mapreduce">JobContext</A> in <A HREF="../../../../../org/apache/hadoop/mapred/package-summary.html">org.apache.hadoop.mapred</A></FONT></TH>
123</TR>
124</TABLE>
125&nbsp;
126<P>
127
128<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
129<TR BGCOLOR="#CCCCFF" CLASS="TableSubHeadingColor">
130<TH ALIGN="left" COLSPAN="2">Subclasses of <A HREF="../../../../../org/apache/hadoop/mapreduce/JobContext.html" title="class in org.apache.hadoop.mapreduce">JobContext</A> in <A HREF="../../../../../org/apache/hadoop/mapred/package-summary.html">org.apache.hadoop.mapred</A></FONT></TH>
131</TR>
132<TR BGCOLOR="white" CLASS="TableRowColor">
133<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
134<CODE>&nbsp;class</CODE></FONT></TD>
135<TD><CODE><B><A HREF="../../../../../org/apache/hadoop/mapred/JobContext.html" title="class in org.apache.hadoop.mapred">JobContext</A></B></CODE>
136
137<BR>
138&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<B>Deprecated.</B>&nbsp;<I>Use <A HREF="../../../../../org/apache/hadoop/mapreduce/JobContext.html" title="class in org.apache.hadoop.mapreduce"><CODE>JobContext</CODE></A> instead.</I></TD>
139</TR>
140</TABLE>
141&nbsp;
142<P>
143
144<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
145<TR BGCOLOR="#CCCCFF" CLASS="TableSubHeadingColor">
146<TH ALIGN="left" COLSPAN="2">Methods in <A HREF="../../../../../org/apache/hadoop/mapred/package-summary.html">org.apache.hadoop.mapred</A> with parameters of type <A HREF="../../../../../org/apache/hadoop/mapreduce/JobContext.html" title="class in org.apache.hadoop.mapreduce">JobContext</A></FONT></TH>
147</TR>
148<TR BGCOLOR="white" CLASS="TableRowColor">
149<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
150<CODE>&nbsp;void</CODE></FONT></TD>
151<TD><CODE><B>OutputCommitter.</B><B><A HREF="../../../../../org/apache/hadoop/mapred/OutputCommitter.html#cleanupJob(org.apache.hadoop.mapreduce.JobContext)">cleanupJob</A></B>(<A HREF="../../../../../org/apache/hadoop/mapreduce/JobContext.html" title="class in org.apache.hadoop.mapreduce">JobContext</A>&nbsp;context)</CODE>
152
153<BR>
154&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<B>Deprecated.</B>&nbsp;This method implements the new interface by calling the old method.</TD>
155</TR>
156<TR BGCOLOR="white" CLASS="TableRowColor">
157<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
158<CODE>&nbsp;void</CODE></FONT></TD>
159<TD><CODE><B>OutputCommitter.</B><B><A HREF="../../../../../org/apache/hadoop/mapred/OutputCommitter.html#setupJob(org.apache.hadoop.mapreduce.JobContext)">setupJob</A></B>(<A HREF="../../../../../org/apache/hadoop/mapreduce/JobContext.html" title="class in org.apache.hadoop.mapreduce">JobContext</A>&nbsp;jobContext)</CODE>
160
161<BR>
162&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<B>Deprecated.</B>&nbsp;This method implements the new interface by calling the old method.</TD>
163</TR>
164</TABLE>
165&nbsp;
166<P>
167<A NAME="org.apache.hadoop.mapreduce"><!-- --></A>
168<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
169<TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor">
170<TH ALIGN="left" COLSPAN="2"><FONT SIZE="+2">
171Uses of <A HREF="../../../../../org/apache/hadoop/mapreduce/JobContext.html" title="class in org.apache.hadoop.mapreduce">JobContext</A> in <A HREF="../../../../../org/apache/hadoop/mapreduce/package-summary.html">org.apache.hadoop.mapreduce</A></FONT></TH>
172</TR>
173</TABLE>
174&nbsp;
175<P>
176
177<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
178<TR BGCOLOR="#CCCCFF" CLASS="TableSubHeadingColor">
179<TH ALIGN="left" COLSPAN="2">Subclasses of <A HREF="../../../../../org/apache/hadoop/mapreduce/JobContext.html" title="class in org.apache.hadoop.mapreduce">JobContext</A> in <A HREF="../../../../../org/apache/hadoop/mapreduce/package-summary.html">org.apache.hadoop.mapreduce</A></FONT></TH>
180</TR>
181<TR BGCOLOR="white" CLASS="TableRowColor">
182<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
183<CODE>&nbsp;class</CODE></FONT></TD>
184<TD><CODE><B><A HREF="../../../../../org/apache/hadoop/mapreduce/Job.html" title="class in org.apache.hadoop.mapreduce">Job</A></B></CODE>
185
186<BR>
187&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;The job submitter's view of the Job.</TD>
188</TR>
189<TR BGCOLOR="white" CLASS="TableRowColor">
190<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
191<CODE>&nbsp;class</CODE></FONT></TD>
192<TD><CODE><B><A HREF="../../../../../org/apache/hadoop/mapreduce/MapContext.html" title="class in org.apache.hadoop.mapreduce">MapContext&lt;KEYIN,VALUEIN,KEYOUT,VALUEOUT&gt;</A></B></CODE>
193
194<BR>
195&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;The context that is given to the <A HREF="../../../../../org/apache/hadoop/mapreduce/Mapper.html" title="class in org.apache.hadoop.mapreduce"><CODE>Mapper</CODE></A>.</TD>
196</TR>
197<TR BGCOLOR="white" CLASS="TableRowColor">
198<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
199<CODE>&nbsp;class</CODE></FONT></TD>
200<TD><CODE><B><A HREF="../../../../../org/apache/hadoop/mapreduce/Mapper.Context.html" title="class in org.apache.hadoop.mapreduce">Mapper.Context</A></B></CODE>
201
202<BR>
203&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</TD>
204</TR>
205<TR BGCOLOR="white" CLASS="TableRowColor">
206<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
207<CODE>&nbsp;class</CODE></FONT></TD>
208<TD><CODE><B><A HREF="../../../../../org/apache/hadoop/mapreduce/ReduceContext.html" title="class in org.apache.hadoop.mapreduce">ReduceContext&lt;KEYIN,VALUEIN,KEYOUT,VALUEOUT&gt;</A></B></CODE>
209
210<BR>
211&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;The context passed to the <A HREF="../../../../../org/apache/hadoop/mapreduce/Reducer.html" title="class in org.apache.hadoop.mapreduce"><CODE>Reducer</CODE></A>.</TD>
212</TR>
213<TR BGCOLOR="white" CLASS="TableRowColor">
214<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
215<CODE>&nbsp;class</CODE></FONT></TD>
216<TD><CODE><B><A HREF="../../../../../org/apache/hadoop/mapreduce/Reducer.Context.html" title="class in org.apache.hadoop.mapreduce">Reducer.Context</A></B></CODE>
217
218<BR>
219&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</TD>
220</TR>
221<TR BGCOLOR="white" CLASS="TableRowColor">
222<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
223<CODE>&nbsp;class</CODE></FONT></TD>
224<TD><CODE><B><A HREF="../../../../../org/apache/hadoop/mapreduce/TaskAttemptContext.html" title="class in org.apache.hadoop.mapreduce">TaskAttemptContext</A></B></CODE>
225
226<BR>
227&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;The context for task attempts.</TD>
228</TR>
229<TR BGCOLOR="white" CLASS="TableRowColor">
230<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
231<CODE>&nbsp;class</CODE></FONT></TD>
232<TD><CODE><B><A HREF="../../../../../org/apache/hadoop/mapreduce/TaskInputOutputContext.html" title="class in org.apache.hadoop.mapreduce">TaskInputOutputContext&lt;KEYIN,VALUEIN,KEYOUT,VALUEOUT&gt;</A></B></CODE>
233
234<BR>
235&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;A context object that allows input and output from the task.</TD>
236</TR>
237</TABLE>
238&nbsp;
239<P>
240
241<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
242<TR BGCOLOR="#CCCCFF" CLASS="TableSubHeadingColor">
243<TH ALIGN="left" COLSPAN="2">Methods in <A HREF="../../../../../org/apache/hadoop/mapreduce/package-summary.html">org.apache.hadoop.mapreduce</A> with parameters of type <A HREF="../../../../../org/apache/hadoop/mapreduce/JobContext.html" title="class in org.apache.hadoop.mapreduce">JobContext</A></FONT></TH>
244</TR>
245<TR BGCOLOR="white" CLASS="TableRowColor">
246<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
247<CODE>abstract &nbsp;void</CODE></FONT></TD>
248<TD><CODE><B>OutputFormat.</B><B><A HREF="../../../../../org/apache/hadoop/mapreduce/OutputFormat.html#checkOutputSpecs(org.apache.hadoop.mapreduce.JobContext)">checkOutputSpecs</A></B>(<A HREF="../../../../../org/apache/hadoop/mapreduce/JobContext.html" title="class in org.apache.hadoop.mapreduce">JobContext</A>&nbsp;context)</CODE>
249
250<BR>
251&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Check for validity of the output-specification for the job.</TD>
252</TR>
253<TR BGCOLOR="white" CLASS="TableRowColor">
254<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
255<CODE>abstract &nbsp;void</CODE></FONT></TD>
256<TD><CODE><B>OutputCommitter.</B><B><A HREF="../../../../../org/apache/hadoop/mapreduce/OutputCommitter.html#cleanupJob(org.apache.hadoop.mapreduce.JobContext)">cleanupJob</A></B>(<A HREF="../../../../../org/apache/hadoop/mapreduce/JobContext.html" title="class in org.apache.hadoop.mapreduce">JobContext</A>&nbsp;jobContext)</CODE>
257
258<BR>
259&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;For cleaning up the job's output after job completion</TD>
260</TR>
261<TR BGCOLOR="white" CLASS="TableRowColor">
262<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
263<CODE>abstract &nbsp;<A HREF="http://java.sun.com/javase/6/docs/api/java/util/List.html?is-external=true" title="class or interface in java.util">List</A>&lt;<A HREF="../../../../../org/apache/hadoop/mapreduce/InputSplit.html" title="class in org.apache.hadoop.mapreduce">InputSplit</A>&gt;</CODE></FONT></TD>
264<TD><CODE><B>InputFormat.</B><B><A HREF="../../../../../org/apache/hadoop/mapreduce/InputFormat.html#getSplits(org.apache.hadoop.mapreduce.JobContext)">getSplits</A></B>(<A HREF="../../../../../org/apache/hadoop/mapreduce/JobContext.html" title="class in org.apache.hadoop.mapreduce">JobContext</A>&nbsp;context)</CODE>
265
266<BR>
267&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Logically split the set of input files for the job.</TD>
268</TR>
269<TR BGCOLOR="white" CLASS="TableRowColor">
270<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
271<CODE>abstract &nbsp;void</CODE></FONT></TD>
272<TD><CODE><B>OutputCommitter.</B><B><A HREF="../../../../../org/apache/hadoop/mapreduce/OutputCommitter.html#setupJob(org.apache.hadoop.mapreduce.JobContext)">setupJob</A></B>(<A HREF="../../../../../org/apache/hadoop/mapreduce/JobContext.html" title="class in org.apache.hadoop.mapreduce">JobContext</A>&nbsp;jobContext)</CODE>
273
274<BR>
275&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;For the framework to setup the job output during initialization</TD>
276</TR>
277</TABLE>
278&nbsp;
279<P>
280<A NAME="org.apache.hadoop.mapreduce.lib.input"><!-- --></A>
281<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
282<TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor">
283<TH ALIGN="left" COLSPAN="2"><FONT SIZE="+2">
284Uses of <A HREF="../../../../../org/apache/hadoop/mapreduce/JobContext.html" title="class in org.apache.hadoop.mapreduce">JobContext</A> in <A HREF="../../../../../org/apache/hadoop/mapreduce/lib/input/package-summary.html">org.apache.hadoop.mapreduce.lib.input</A></FONT></TH>
285</TR>
286</TABLE>
287&nbsp;
288<P>
289
290<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
291<TR BGCOLOR="#CCCCFF" CLASS="TableSubHeadingColor">
292<TH ALIGN="left" COLSPAN="2">Methods in <A HREF="../../../../../org/apache/hadoop/mapreduce/lib/input/package-summary.html">org.apache.hadoop.mapreduce.lib.input</A> with parameters of type <A HREF="../../../../../org/apache/hadoop/mapreduce/JobContext.html" title="class in org.apache.hadoop.mapreduce">JobContext</A></FONT></TH>
293</TR>
294<TR BGCOLOR="white" CLASS="TableRowColor">
295<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
296<CODE>static&nbsp;<A HREF="../../../../../org/apache/hadoop/fs/PathFilter.html" title="interface in org.apache.hadoop.fs">PathFilter</A></CODE></FONT></TD>
297<TD><CODE><B>FileInputFormat.</B><B><A HREF="../../../../../org/apache/hadoop/mapreduce/lib/input/FileInputFormat.html#getInputPathFilter(org.apache.hadoop.mapreduce.JobContext)">getInputPathFilter</A></B>(<A HREF="../../../../../org/apache/hadoop/mapreduce/JobContext.html" title="class in org.apache.hadoop.mapreduce">JobContext</A>&nbsp;context)</CODE>
298
299<BR>
300&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Get a PathFilter instance of the filter set for the input paths.</TD>
301</TR>
302<TR BGCOLOR="white" CLASS="TableRowColor">
303<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
304<CODE>static&nbsp;<A HREF="../../../../../org/apache/hadoop/fs/Path.html" title="class in org.apache.hadoop.fs">Path</A>[]</CODE></FONT></TD>
305<TD><CODE><B>FileInputFormat.</B><B><A HREF="../../../../../org/apache/hadoop/mapreduce/lib/input/FileInputFormat.html#getInputPaths(org.apache.hadoop.mapreduce.JobContext)">getInputPaths</A></B>(<A HREF="../../../../../org/apache/hadoop/mapreduce/JobContext.html" title="class in org.apache.hadoop.mapreduce">JobContext</A>&nbsp;context)</CODE>
306
307<BR>
308&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Get the list of input <A HREF="../../../../../org/apache/hadoop/fs/Path.html" title="class in org.apache.hadoop.fs"><CODE>Path</CODE></A>s for the map-reduce job.</TD>
309</TR>
310<TR BGCOLOR="white" CLASS="TableRowColor">
311<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
312<CODE>static&nbsp;long</CODE></FONT></TD>
313<TD><CODE><B>FileInputFormat.</B><B><A HREF="../../../../../org/apache/hadoop/mapreduce/lib/input/FileInputFormat.html#getMaxSplitSize(org.apache.hadoop.mapreduce.JobContext)">getMaxSplitSize</A></B>(<A HREF="../../../../../org/apache/hadoop/mapreduce/JobContext.html" title="class in org.apache.hadoop.mapreduce">JobContext</A>&nbsp;context)</CODE>
314
315<BR>
316&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Get the maximum split size.</TD>
317</TR>
318<TR BGCOLOR="white" CLASS="TableRowColor">
319<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
320<CODE>static&nbsp;long</CODE></FONT></TD>
321<TD><CODE><B>FileInputFormat.</B><B><A HREF="../../../../../org/apache/hadoop/mapreduce/lib/input/FileInputFormat.html#getMinSplitSize(org.apache.hadoop.mapreduce.JobContext)">getMinSplitSize</A></B>(<A HREF="../../../../../org/apache/hadoop/mapreduce/JobContext.html" title="class in org.apache.hadoop.mapreduce">JobContext</A>&nbsp;job)</CODE>
322
323<BR>
324&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Get the minimum split size</TD>
325</TR>
326<TR BGCOLOR="white" CLASS="TableRowColor">
327<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
328<CODE>&nbsp;<A HREF="http://java.sun.com/javase/6/docs/api/java/util/List.html?is-external=true" title="class or interface in java.util">List</A>&lt;<A HREF="../../../../../org/apache/hadoop/mapreduce/InputSplit.html" title="class in org.apache.hadoop.mapreduce">InputSplit</A>&gt;</CODE></FONT></TD>
329<TD><CODE><B>FileInputFormat.</B><B><A HREF="../../../../../org/apache/hadoop/mapreduce/lib/input/FileInputFormat.html#getSplits(org.apache.hadoop.mapreduce.JobContext)">getSplits</A></B>(<A HREF="../../../../../org/apache/hadoop/mapreduce/JobContext.html" title="class in org.apache.hadoop.mapreduce">JobContext</A>&nbsp;job)</CODE>
330
331<BR>
332&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Generate the list of files and make them into FileSplits.</TD>
333</TR>
334<TR BGCOLOR="white" CLASS="TableRowColor">
335<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
336<CODE>protected &nbsp;boolean</CODE></FONT></TD>
337<TD><CODE><B>TextInputFormat.</B><B><A HREF="../../../../../org/apache/hadoop/mapreduce/lib/input/TextInputFormat.html#isSplitable(org.apache.hadoop.mapreduce.JobContext, org.apache.hadoop.fs.Path)">isSplitable</A></B>(<A HREF="../../../../../org/apache/hadoop/mapreduce/JobContext.html" title="class in org.apache.hadoop.mapreduce">JobContext</A>&nbsp;context,
338            <A HREF="../../../../../org/apache/hadoop/fs/Path.html" title="class in org.apache.hadoop.fs">Path</A>&nbsp;file)</CODE>
339
340<BR>
341&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</TD>
342</TR>
343<TR BGCOLOR="white" CLASS="TableRowColor">
344<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
345<CODE>protected &nbsp;boolean</CODE></FONT></TD>
346<TD><CODE><B>FileInputFormat.</B><B><A HREF="../../../../../org/apache/hadoop/mapreduce/lib/input/FileInputFormat.html#isSplitable(org.apache.hadoop.mapreduce.JobContext, org.apache.hadoop.fs.Path)">isSplitable</A></B>(<A HREF="../../../../../org/apache/hadoop/mapreduce/JobContext.html" title="class in org.apache.hadoop.mapreduce">JobContext</A>&nbsp;context,
347            <A HREF="../../../../../org/apache/hadoop/fs/Path.html" title="class in org.apache.hadoop.fs">Path</A>&nbsp;filename)</CODE>
348
349<BR>
350&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Is the given filename splitable? Usually, true, but if the file is
351 stream compressed, it will not be.</TD>
352</TR>
353<TR BGCOLOR="white" CLASS="TableRowColor">
354<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
355<CODE>protected &nbsp;<A HREF="http://java.sun.com/javase/6/docs/api/java/util/List.html?is-external=true" title="class or interface in java.util">List</A>&lt;<A HREF="../../../../../org/apache/hadoop/fs/FileStatus.html" title="class in org.apache.hadoop.fs">FileStatus</A>&gt;</CODE></FONT></TD>
356<TD><CODE><B>SequenceFileInputFormat.</B><B><A HREF="../../../../../org/apache/hadoop/mapreduce/lib/input/SequenceFileInputFormat.html#listStatus(org.apache.hadoop.mapreduce.JobContext)">listStatus</A></B>(<A HREF="../../../../../org/apache/hadoop/mapreduce/JobContext.html" title="class in org.apache.hadoop.mapreduce">JobContext</A>&nbsp;job)</CODE>
357
358<BR>
359&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</TD>
360</TR>
361<TR BGCOLOR="white" CLASS="TableRowColor">
362<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
363<CODE>protected &nbsp;<A HREF="http://java.sun.com/javase/6/docs/api/java/util/List.html?is-external=true" title="class or interface in java.util">List</A>&lt;<A HREF="../../../../../org/apache/hadoop/fs/FileStatus.html" title="class in org.apache.hadoop.fs">FileStatus</A>&gt;</CODE></FONT></TD>
364<TD><CODE><B>FileInputFormat.</B><B><A HREF="../../../../../org/apache/hadoop/mapreduce/lib/input/FileInputFormat.html#listStatus(org.apache.hadoop.mapreduce.JobContext)">listStatus</A></B>(<A HREF="../../../../../org/apache/hadoop/mapreduce/JobContext.html" title="class in org.apache.hadoop.mapreduce">JobContext</A>&nbsp;job)</CODE>
365
366<BR>
367&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;List input directories.</TD>
368</TR>
369</TABLE>
370&nbsp;
371<P>
372<A NAME="org.apache.hadoop.mapreduce.lib.map"><!-- --></A>
373<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
374<TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor">
375<TH ALIGN="left" COLSPAN="2"><FONT SIZE="+2">
376Uses of <A HREF="../../../../../org/apache/hadoop/mapreduce/JobContext.html" title="class in org.apache.hadoop.mapreduce">JobContext</A> in <A HREF="../../../../../org/apache/hadoop/mapreduce/lib/map/package-summary.html">org.apache.hadoop.mapreduce.lib.map</A></FONT></TH>
377</TR>
378</TABLE>
379&nbsp;
380<P>
381
382<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
383<TR BGCOLOR="#CCCCFF" CLASS="TableSubHeadingColor">
384<TH ALIGN="left" COLSPAN="2">Methods in <A HREF="../../../../../org/apache/hadoop/mapreduce/lib/map/package-summary.html">org.apache.hadoop.mapreduce.lib.map</A> with parameters of type <A HREF="../../../../../org/apache/hadoop/mapreduce/JobContext.html" title="class in org.apache.hadoop.mapreduce">JobContext</A></FONT></TH>
385</TR>
386<TR BGCOLOR="white" CLASS="TableRowColor">
387<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
388<CODE>static
389<TABLE BORDER="0" CELLPADDING="0" CELLSPACING="0" SUMMARY="">
390<TR ALIGN="right" VALIGN="">
391<TD NOWRAP><FONT SIZE="-1">
392<CODE>&lt;K1,V1,K2,V2&gt; 
393<BR>
394<A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Class.html?is-external=true" title="class or interface in java.lang">Class</A>&lt;<A HREF="../../../../../org/apache/hadoop/mapreduce/Mapper.html" title="class in org.apache.hadoop.mapreduce">Mapper</A>&lt;K1,V1,K2,V2&gt;&gt;</CODE></FONT></TD>
395</TR>
396</TABLE>
397</CODE></FONT></TD>
398<TD><CODE><B>MultithreadedMapper.</B><B><A HREF="../../../../../org/apache/hadoop/mapreduce/lib/map/MultithreadedMapper.html#getMapperClass(org.apache.hadoop.mapreduce.JobContext)">getMapperClass</A></B>(<A HREF="../../../../../org/apache/hadoop/mapreduce/JobContext.html" title="class in org.apache.hadoop.mapreduce">JobContext</A>&nbsp;job)</CODE>
399
400<BR>
401&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Get the application's mapper class.</TD>
402</TR>
403<TR BGCOLOR="white" CLASS="TableRowColor">
404<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
405<CODE>static&nbsp;int</CODE></FONT></TD>
406<TD><CODE><B>MultithreadedMapper.</B><B><A HREF="../../../../../org/apache/hadoop/mapreduce/lib/map/MultithreadedMapper.html#getNumberOfThreads(org.apache.hadoop.mapreduce.JobContext)">getNumberOfThreads</A></B>(<A HREF="../../../../../org/apache/hadoop/mapreduce/JobContext.html" title="class in org.apache.hadoop.mapreduce">JobContext</A>&nbsp;job)</CODE>
407
408<BR>
409&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;The number of threads in the thread pool that will run the map function.</TD>
410</TR>
411</TABLE>
412&nbsp;
413<P>
414<A NAME="org.apache.hadoop.mapreduce.lib.output"><!-- --></A>
415<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
416<TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor">
417<TH ALIGN="left" COLSPAN="2"><FONT SIZE="+2">
418Uses of <A HREF="../../../../../org/apache/hadoop/mapreduce/JobContext.html" title="class in org.apache.hadoop.mapreduce">JobContext</A> in <A HREF="../../../../../org/apache/hadoop/mapreduce/lib/output/package-summary.html">org.apache.hadoop.mapreduce.lib.output</A></FONT></TH>
419</TR>
420</TABLE>
421&nbsp;
422<P>
423
424<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
425<TR BGCOLOR="#CCCCFF" CLASS="TableSubHeadingColor">
426<TH ALIGN="left" COLSPAN="2">Methods in <A HREF="../../../../../org/apache/hadoop/mapreduce/lib/output/package-summary.html">org.apache.hadoop.mapreduce.lib.output</A> with parameters of type <A HREF="../../../../../org/apache/hadoop/mapreduce/JobContext.html" title="class in org.apache.hadoop.mapreduce">JobContext</A></FONT></TH>
427</TR>
428<TR BGCOLOR="white" CLASS="TableRowColor">
429<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
430<CODE>&nbsp;void</CODE></FONT></TD>
431<TD><CODE><B>NullOutputFormat.</B><B><A HREF="../../../../../org/apache/hadoop/mapreduce/lib/output/NullOutputFormat.html#checkOutputSpecs(org.apache.hadoop.mapreduce.JobContext)">checkOutputSpecs</A></B>(<A HREF="../../../../../org/apache/hadoop/mapreduce/JobContext.html" title="class in org.apache.hadoop.mapreduce">JobContext</A>&nbsp;context)</CODE>
432
433<BR>
434&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</TD>
435</TR>
436<TR BGCOLOR="white" CLASS="TableRowColor">
437<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
438<CODE>&nbsp;void</CODE></FONT></TD>
439<TD><CODE><B>FileOutputFormat.</B><B><A HREF="../../../../../org/apache/hadoop/mapreduce/lib/output/FileOutputFormat.html#checkOutputSpecs(org.apache.hadoop.mapreduce.JobContext)">checkOutputSpecs</A></B>(<A HREF="../../../../../org/apache/hadoop/mapreduce/JobContext.html" title="class in org.apache.hadoop.mapreduce">JobContext</A>&nbsp;job)</CODE>
440
441<BR>
442&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</TD>
443</TR>
444<TR BGCOLOR="white" CLASS="TableRowColor">
445<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
446<CODE>&nbsp;void</CODE></FONT></TD>
447<TD><CODE><B>FileOutputCommitter.</B><B><A HREF="../../../../../org/apache/hadoop/mapreduce/lib/output/FileOutputCommitter.html#cleanupJob(org.apache.hadoop.mapreduce.JobContext)">cleanupJob</A></B>(<A HREF="../../../../../org/apache/hadoop/mapreduce/JobContext.html" title="class in org.apache.hadoop.mapreduce">JobContext</A>&nbsp;context)</CODE>
448
449<BR>
450&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Delete the temporary directory, including all of the work directories.</TD>
451</TR>
452<TR BGCOLOR="white" CLASS="TableRowColor">
453<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
454<CODE>static&nbsp;boolean</CODE></FONT></TD>
455<TD><CODE><B>FileOutputFormat.</B><B><A HREF="../../../../../org/apache/hadoop/mapreduce/lib/output/FileOutputFormat.html#getCompressOutput(org.apache.hadoop.mapreduce.JobContext)">getCompressOutput</A></B>(<A HREF="../../../../../org/apache/hadoop/mapreduce/JobContext.html" title="class in org.apache.hadoop.mapreduce">JobContext</A>&nbsp;job)</CODE>
456
457<BR>
458&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Is the job output compressed?</TD>
459</TR>
460<TR BGCOLOR="white" CLASS="TableRowColor">
461<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
462<CODE>static&nbsp;<A HREF="../../../../../org/apache/hadoop/io/SequenceFile.CompressionType.html" title="enum in org.apache.hadoop.io">SequenceFile.CompressionType</A></CODE></FONT></TD>
463<TD><CODE><B>SequenceFileOutputFormat.</B><B><A HREF="../../../../../org/apache/hadoop/mapreduce/lib/output/SequenceFileOutputFormat.html#getOutputCompressionType(org.apache.hadoop.mapreduce.JobContext)">getOutputCompressionType</A></B>(<A HREF="../../../../../org/apache/hadoop/mapreduce/JobContext.html" title="class in org.apache.hadoop.mapreduce">JobContext</A>&nbsp;job)</CODE>
464
465<BR>
466&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Get the <A HREF="../../../../../org/apache/hadoop/io/SequenceFile.CompressionType.html" title="enum in org.apache.hadoop.io"><CODE>SequenceFile.CompressionType</CODE></A> for the output <A HREF="../../../../../org/apache/hadoop/io/SequenceFile.html" title="class in org.apache.hadoop.io"><CODE>SequenceFile</CODE></A>.</TD>
467</TR>
468<TR BGCOLOR="white" CLASS="TableRowColor">
469<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
470<CODE>static&nbsp;<A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Class.html?is-external=true" title="class or interface in java.lang">Class</A>&lt;? extends <A HREF="../../../../../org/apache/hadoop/io/compress/CompressionCodec.html" title="interface in org.apache.hadoop.io.compress">CompressionCodec</A>&gt;</CODE></FONT></TD>
471<TD><CODE><B>FileOutputFormat.</B><B><A HREF="../../../../../org/apache/hadoop/mapreduce/lib/output/FileOutputFormat.html#getOutputCompressorClass(org.apache.hadoop.mapreduce.JobContext, java.lang.Class)">getOutputCompressorClass</A></B>(<A HREF="../../../../../org/apache/hadoop/mapreduce/JobContext.html" title="class in org.apache.hadoop.mapreduce">JobContext</A>&nbsp;job,
472                         <A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Class.html?is-external=true" title="class or interface in java.lang">Class</A>&lt;? extends <A HREF="../../../../../org/apache/hadoop/io/compress/CompressionCodec.html" title="interface in org.apache.hadoop.io.compress">CompressionCodec</A>&gt;&nbsp;defaultValue)</CODE>
473
474<BR>
475&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Get the <A HREF="../../../../../org/apache/hadoop/io/compress/CompressionCodec.html" title="interface in org.apache.hadoop.io.compress"><CODE>CompressionCodec</CODE></A> for compressing the job outputs.</TD>
476</TR>
477<TR BGCOLOR="white" CLASS="TableRowColor">
478<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
479<CODE>static&nbsp;<A HREF="../../../../../org/apache/hadoop/fs/Path.html" title="class in org.apache.hadoop.fs">Path</A></CODE></FONT></TD>
480<TD><CODE><B>FileOutputFormat.</B><B><A HREF="../../../../../org/apache/hadoop/mapreduce/lib/output/FileOutputFormat.html#getOutputPath(org.apache.hadoop.mapreduce.JobContext)">getOutputPath</A></B>(<A HREF="../../../../../org/apache/hadoop/mapreduce/JobContext.html" title="class in org.apache.hadoop.mapreduce">JobContext</A>&nbsp;job)</CODE>
481
482<BR>
483&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Get the <A HREF="../../../../../org/apache/hadoop/fs/Path.html" title="class in org.apache.hadoop.fs"><CODE>Path</CODE></A> to the output directory for the map-reduce job.</TD>
484</TR>
485<TR BGCOLOR="white" CLASS="TableRowColor">
486<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
487<CODE>&nbsp;void</CODE></FONT></TD>
488<TD><CODE><B>FileOutputCommitter.</B><B><A HREF="../../../../../org/apache/hadoop/mapreduce/lib/output/FileOutputCommitter.html#setupJob(org.apache.hadoop.mapreduce.JobContext)">setupJob</A></B>(<A HREF="../../../../../org/apache/hadoop/mapreduce/JobContext.html" title="class in org.apache.hadoop.mapreduce">JobContext</A>&nbsp;context)</CODE>
489
490<BR>
491&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Create the temporary directory that is the root of all of the task
492 work directories.</TD>
493</TR>
494</TABLE>
495&nbsp;
496<P>
497<HR>
498
499
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