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7SequenceFileAsBinaryOutputFormat (Hadoop 0.20.1 API)
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58&nbsp;<A HREF="../../../../org/apache/hadoop/mapred/SequenceFileAsBinaryInputFormat.SequenceFileAsBinaryRecordReader.html" title="class in org.apache.hadoop.mapred"><B>PREV CLASS</B></A>&nbsp;
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91org.apache.hadoop.mapred</FONT>
92<BR>
93Class SequenceFileAsBinaryOutputFormat</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/mapred/FileOutputFormat.html" title="class in org.apache.hadoop.mapred">org.apache.hadoop.mapred.FileOutputFormat</A>&lt;K,V&gt;
97      <IMG SRC="../../../../resources/inherit.gif" ALT="extended by "><A HREF="../../../../org/apache/hadoop/mapred/SequenceFileOutputFormat.html" title="class in org.apache.hadoop.mapred">org.apache.hadoop.mapred.SequenceFileOutputFormat</A>&lt;<A HREF="../../../../org/apache/hadoop/io/BytesWritable.html" title="class in org.apache.hadoop.io">BytesWritable</A>,<A HREF="../../../../org/apache/hadoop/io/BytesWritable.html" title="class in org.apache.hadoop.io">BytesWritable</A>&gt;
98          <IMG SRC="../../../../resources/inherit.gif" ALT="extended by "><B>org.apache.hadoop.mapred.SequenceFileAsBinaryOutputFormat</B>
99</PRE>
100<DL>
101<DT><B>All Implemented Interfaces:</B> <DD><A HREF="../../../../org/apache/hadoop/mapred/OutputFormat.html" title="interface in org.apache.hadoop.mapred">OutputFormat</A>&lt;<A HREF="../../../../org/apache/hadoop/io/BytesWritable.html" title="class in org.apache.hadoop.io">BytesWritable</A>,<A HREF="../../../../org/apache/hadoop/io/BytesWritable.html" title="class in org.apache.hadoop.io">BytesWritable</A>&gt;</DD>
102</DL>
103<HR>
104<DL>
105<DT><PRE>public class <B>SequenceFileAsBinaryOutputFormat</B><DT>extends <A HREF="../../../../org/apache/hadoop/mapred/SequenceFileOutputFormat.html" title="class in org.apache.hadoop.mapred">SequenceFileOutputFormat</A>&lt;<A HREF="../../../../org/apache/hadoop/io/BytesWritable.html" title="class in org.apache.hadoop.io">BytesWritable</A>,<A HREF="../../../../org/apache/hadoop/io/BytesWritable.html" title="class in org.apache.hadoop.io">BytesWritable</A>&gt;</DL>
106</PRE>
107
108<P>
109An <A HREF="../../../../org/apache/hadoop/mapred/OutputFormat.html" title="interface in org.apache.hadoop.mapred"><CODE>OutputFormat</CODE></A> that writes keys, values to
110 <A HREF="../../../../org/apache/hadoop/io/SequenceFile.html" title="class in org.apache.hadoop.io"><CODE>SequenceFile</CODE></A>s in binary(raw) format
111<P>
112
113<P>
114<HR>
115
116<P>
117<!-- ======== NESTED CLASS SUMMARY ======== -->
118
119<A NAME="nested_class_summary"><!-- --></A>
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122<TH ALIGN="left" COLSPAN="2"><FONT SIZE="+2">
123<B>Nested Class Summary</B></FONT></TH>
124</TR>
125<TR BGCOLOR="white" CLASS="TableRowColor">
126<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
127<CODE>protected static&nbsp;class</CODE></FONT></TD>
128<TD><CODE><B><A HREF="../../../../org/apache/hadoop/mapred/SequenceFileAsBinaryOutputFormat.WritableValueBytes.html" title="class in org.apache.hadoop.mapred">SequenceFileAsBinaryOutputFormat.WritableValueBytes</A></B></CODE>
129
130<BR>
131&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Inner class used for appendRaw</TD>
132</TR>
133</TABLE>
134&nbsp;
135<!-- ======== CONSTRUCTOR SUMMARY ======== -->
136
137<A NAME="constructor_summary"><!-- --></A>
138<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
139<TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor">
140<TH ALIGN="left" COLSPAN="2"><FONT SIZE="+2">
141<B>Constructor Summary</B></FONT></TH>
142</TR>
143<TR BGCOLOR="white" CLASS="TableRowColor">
144<TD><CODE><B><A HREF="../../../../org/apache/hadoop/mapred/SequenceFileAsBinaryOutputFormat.html#SequenceFileAsBinaryOutputFormat()">SequenceFileAsBinaryOutputFormat</A></B>()</CODE>
145
146<BR>
147&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</TD>
148</TR>
149</TABLE>
150&nbsp;
151<!-- ========== METHOD SUMMARY =========== -->
152
153<A NAME="method_summary"><!-- --></A>
154<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
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156<TH ALIGN="left" COLSPAN="2"><FONT SIZE="+2">
157<B>Method Summary</B></FONT></TH>
158</TR>
159<TR BGCOLOR="white" CLASS="TableRowColor">
160<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
161<CODE>&nbsp;void</CODE></FONT></TD>
162<TD><CODE><B><A HREF="../../../../org/apache/hadoop/mapred/SequenceFileAsBinaryOutputFormat.html#checkOutputSpecs(org.apache.hadoop.fs.FileSystem, org.apache.hadoop.mapred.JobConf)">checkOutputSpecs</A></B>(<A HREF="../../../../org/apache/hadoop/fs/FileSystem.html" title="class in org.apache.hadoop.fs">FileSystem</A>&nbsp;ignored,
163                 <A HREF="../../../../org/apache/hadoop/mapred/JobConf.html" title="class in org.apache.hadoop.mapred">JobConf</A>&nbsp;job)</CODE>
164
165<BR>
166&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Check for validity of the output-specification for the job.</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="../../../../org/apache/hadoop/mapred/RecordWriter.html" title="interface in org.apache.hadoop.mapred">RecordWriter</A>&lt;<A HREF="../../../../org/apache/hadoop/io/BytesWritable.html" title="class in org.apache.hadoop.io">BytesWritable</A>,<A HREF="../../../../org/apache/hadoop/io/BytesWritable.html" title="class in org.apache.hadoop.io">BytesWritable</A>&gt;</CODE></FONT></TD>
171<TD><CODE><B><A HREF="../../../../org/apache/hadoop/mapred/SequenceFileAsBinaryOutputFormat.html#getRecordWriter(org.apache.hadoop.fs.FileSystem, org.apache.hadoop.mapred.JobConf, java.lang.String, org.apache.hadoop.util.Progressable)">getRecordWriter</A></B>(<A HREF="../../../../org/apache/hadoop/fs/FileSystem.html" title="class in org.apache.hadoop.fs">FileSystem</A>&nbsp;ignored,
172                <A HREF="../../../../org/apache/hadoop/mapred/JobConf.html" title="class in org.apache.hadoop.mapred">JobConf</A>&nbsp;job,
173                <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;name,
174                <A HREF="../../../../org/apache/hadoop/util/Progressable.html" title="interface in org.apache.hadoop.util">Progressable</A>&nbsp;progress)</CODE>
175
176<BR>
177&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Get the <A HREF="../../../../org/apache/hadoop/mapred/RecordWriter.html" title="interface in org.apache.hadoop.mapred"><CODE>RecordWriter</CODE></A> for the given job.</TD>
178</TR>
179<TR BGCOLOR="white" CLASS="TableRowColor">
180<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
181<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/WritableComparable.html" title="interface in org.apache.hadoop.io">WritableComparable</A>&gt;</CODE></FONT></TD>
182<TD><CODE><B><A HREF="../../../../org/apache/hadoop/mapred/SequenceFileAsBinaryOutputFormat.html#getSequenceFileOutputKeyClass(org.apache.hadoop.mapred.JobConf)">getSequenceFileOutputKeyClass</A></B>(<A HREF="../../../../org/apache/hadoop/mapred/JobConf.html" title="class in org.apache.hadoop.mapred">JobConf</A>&nbsp;conf)</CODE>
183
184<BR>
185&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Get the key class for the <A HREF="../../../../org/apache/hadoop/io/SequenceFile.html" title="class in org.apache.hadoop.io"><CODE>SequenceFile</CODE></A></TD>
186</TR>
187<TR BGCOLOR="white" CLASS="TableRowColor">
188<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
189<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/Writable.html" title="interface in org.apache.hadoop.io">Writable</A>&gt;</CODE></FONT></TD>
190<TD><CODE><B><A HREF="../../../../org/apache/hadoop/mapred/SequenceFileAsBinaryOutputFormat.html#getSequenceFileOutputValueClass(org.apache.hadoop.mapred.JobConf)">getSequenceFileOutputValueClass</A></B>(<A HREF="../../../../org/apache/hadoop/mapred/JobConf.html" title="class in org.apache.hadoop.mapred">JobConf</A>&nbsp;conf)</CODE>
191
192<BR>
193&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Get the value class for the <A HREF="../../../../org/apache/hadoop/io/SequenceFile.html" title="class in org.apache.hadoop.io"><CODE>SequenceFile</CODE></A></TD>
194</TR>
195<TR BGCOLOR="white" CLASS="TableRowColor">
196<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
197<CODE>static&nbsp;void</CODE></FONT></TD>
198<TD><CODE><B><A HREF="../../../../org/apache/hadoop/mapred/SequenceFileAsBinaryOutputFormat.html#setSequenceFileOutputKeyClass(org.apache.hadoop.mapred.JobConf, java.lang.Class)">setSequenceFileOutputKeyClass</A></B>(<A HREF="../../../../org/apache/hadoop/mapred/JobConf.html" title="class in org.apache.hadoop.mapred">JobConf</A>&nbsp;conf,
199                              <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;?&gt;&nbsp;theClass)</CODE>
200
201<BR>
202&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Set the key class for the <A HREF="../../../../org/apache/hadoop/io/SequenceFile.html" title="class in org.apache.hadoop.io"><CODE>SequenceFile</CODE></A></TD>
203</TR>
204<TR BGCOLOR="white" CLASS="TableRowColor">
205<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
206<CODE>static&nbsp;void</CODE></FONT></TD>
207<TD><CODE><B><A HREF="../../../../org/apache/hadoop/mapred/SequenceFileAsBinaryOutputFormat.html#setSequenceFileOutputValueClass(org.apache.hadoop.mapred.JobConf, java.lang.Class)">setSequenceFileOutputValueClass</A></B>(<A HREF="../../../../org/apache/hadoop/mapred/JobConf.html" title="class in org.apache.hadoop.mapred">JobConf</A>&nbsp;conf,
208                                <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;?&gt;&nbsp;theClass)</CODE>
209
210<BR>
211&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Set the value class for the <A HREF="../../../../org/apache/hadoop/io/SequenceFile.html" title="class in org.apache.hadoop.io"><CODE>SequenceFile</CODE></A></TD>
212</TR>
213</TABLE>
214&nbsp;<A NAME="methods_inherited_from_class_org.apache.hadoop.mapred.SequenceFileOutputFormat"><!-- --></A>
215<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
216<TR BGCOLOR="#EEEEFF" CLASS="TableSubHeadingColor">
217<TH ALIGN="left"><B>Methods inherited from class org.apache.hadoop.mapred.<A HREF="../../../../org/apache/hadoop/mapred/SequenceFileOutputFormat.html" title="class in org.apache.hadoop.mapred">SequenceFileOutputFormat</A></B></TH>
218</TR>
219<TR BGCOLOR="white" CLASS="TableRowColor">
220<TD><CODE><A HREF="../../../../org/apache/hadoop/mapred/SequenceFileOutputFormat.html#getOutputCompressionType(org.apache.hadoop.mapred.JobConf)">getOutputCompressionType</A>, <A HREF="../../../../org/apache/hadoop/mapred/SequenceFileOutputFormat.html#getReaders(org.apache.hadoop.conf.Configuration, org.apache.hadoop.fs.Path)">getReaders</A>, <A HREF="../../../../org/apache/hadoop/mapred/SequenceFileOutputFormat.html#setOutputCompressionType(org.apache.hadoop.mapred.JobConf, org.apache.hadoop.io.SequenceFile.CompressionType)">setOutputCompressionType</A></CODE></TD>
221</TR>
222</TABLE>
223&nbsp;<A NAME="methods_inherited_from_class_org.apache.hadoop.mapred.FileOutputFormat"><!-- --></A>
224<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
225<TR BGCOLOR="#EEEEFF" CLASS="TableSubHeadingColor">
226<TH ALIGN="left"><B>Methods inherited from class org.apache.hadoop.mapred.<A HREF="../../../../org/apache/hadoop/mapred/FileOutputFormat.html" title="class in org.apache.hadoop.mapred">FileOutputFormat</A></B></TH>
227</TR>
228<TR BGCOLOR="white" CLASS="TableRowColor">
229<TD><CODE><A HREF="../../../../org/apache/hadoop/mapred/FileOutputFormat.html#getCompressOutput(org.apache.hadoop.mapred.JobConf)">getCompressOutput</A>, <A HREF="../../../../org/apache/hadoop/mapred/FileOutputFormat.html#getOutputCompressorClass(org.apache.hadoop.mapred.JobConf, java.lang.Class)">getOutputCompressorClass</A>, <A HREF="../../../../org/apache/hadoop/mapred/FileOutputFormat.html#getOutputPath(org.apache.hadoop.mapred.JobConf)">getOutputPath</A>, <A HREF="../../../../org/apache/hadoop/mapred/FileOutputFormat.html#getPathForCustomFile(org.apache.hadoop.mapred.JobConf, java.lang.String)">getPathForCustomFile</A>, <A HREF="../../../../org/apache/hadoop/mapred/FileOutputFormat.html#getTaskOutputPath(org.apache.hadoop.mapred.JobConf, java.lang.String)">getTaskOutputPath</A>, <A HREF="../../../../org/apache/hadoop/mapred/FileOutputFormat.html#getUniqueName(org.apache.hadoop.mapred.JobConf, java.lang.String)">getUniqueName</A>, <A HREF="../../../../org/apache/hadoop/mapred/FileOutputFormat.html#getWorkOutputPath(org.apache.hadoop.mapred.JobConf)">getWorkOutputPath</A>, <A HREF="../../../../org/apache/hadoop/mapred/FileOutputFormat.html#setCompressOutput(org.apache.hadoop.mapred.JobConf, boolean)">setCompressOutput</A>, <A HREF="../../../../org/apache/hadoop/mapred/FileOutputFormat.html#setOutputCompressorClass(org.apache.hadoop.mapred.JobConf, java.lang.Class)">setOutputCompressorClass</A>, <A HREF="../../../../org/apache/hadoop/mapred/FileOutputFormat.html#setOutputPath(org.apache.hadoop.mapred.JobConf, org.apache.hadoop.fs.Path)">setOutputPath</A></CODE></TD>
230</TR>
231</TABLE>
232&nbsp;<A NAME="methods_inherited_from_class_java.lang.Object"><!-- --></A>
233<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
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235<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>
236</TR>
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238<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#equals(java.lang.Object)" title="class or interface in java.lang">equals</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#hashCode()" title="class or interface in java.lang">hashCode</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#toString()" title="class or interface in java.lang">toString</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>
239</TR>
240</TABLE>
241&nbsp;
242<P>
243
244<!-- ========= CONSTRUCTOR DETAIL ======== -->
245
246<A NAME="constructor_detail"><!-- --></A>
247<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
248<TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor">
249<TH ALIGN="left" COLSPAN="1"><FONT SIZE="+2">
250<B>Constructor Detail</B></FONT></TH>
251</TR>
252</TABLE>
253
254<A NAME="SequenceFileAsBinaryOutputFormat()"><!-- --></A><H3>
255SequenceFileAsBinaryOutputFormat</H3>
256<PRE>
257public <B>SequenceFileAsBinaryOutputFormat</B>()</PRE>
258<DL>
259</DL>
260
261<!-- ============ METHOD DETAIL ========== -->
262
263<A NAME="method_detail"><!-- --></A>
264<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
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266<TH ALIGN="left" COLSPAN="1"><FONT SIZE="+2">
267<B>Method Detail</B></FONT></TH>
268</TR>
269</TABLE>
270
271<A NAME="setSequenceFileOutputKeyClass(org.apache.hadoop.mapred.JobConf, java.lang.Class)"><!-- --></A><H3>
272setSequenceFileOutputKeyClass</H3>
273<PRE>
274public static void <B>setSequenceFileOutputKeyClass</B>(<A HREF="../../../../org/apache/hadoop/mapred/JobConf.html" title="class in org.apache.hadoop.mapred">JobConf</A>&nbsp;conf,
275                                                 <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;?&gt;&nbsp;theClass)</PRE>
276<DL>
277<DD>Set the key class for the <A HREF="../../../../org/apache/hadoop/io/SequenceFile.html" title="class in org.apache.hadoop.io"><CODE>SequenceFile</CODE></A>
278 <p>This allows the user to specify the key class to be different
279 from the actual class (<A HREF="../../../../org/apache/hadoop/io/BytesWritable.html" title="class in org.apache.hadoop.io"><CODE>BytesWritable</CODE></A>) used for writing </p>
280<P>
281<DD><DL>
282<DT><B>Parameters:</B><DD><CODE>conf</CODE> - the <A HREF="../../../../org/apache/hadoop/mapred/JobConf.html" title="class in org.apache.hadoop.mapred"><CODE>JobConf</CODE></A> to modify<DD><CODE>theClass</CODE> - the SequenceFile output key class.</DL>
283</DD>
284</DL>
285<HR>
286
287<A NAME="setSequenceFileOutputValueClass(org.apache.hadoop.mapred.JobConf, java.lang.Class)"><!-- --></A><H3>
288setSequenceFileOutputValueClass</H3>
289<PRE>
290public static void <B>setSequenceFileOutputValueClass</B>(<A HREF="../../../../org/apache/hadoop/mapred/JobConf.html" title="class in org.apache.hadoop.mapred">JobConf</A>&nbsp;conf,
291                                                   <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;?&gt;&nbsp;theClass)</PRE>
292<DL>
293<DD>Set the value class for the <A HREF="../../../../org/apache/hadoop/io/SequenceFile.html" title="class in org.apache.hadoop.io"><CODE>SequenceFile</CODE></A>
294 <p>This allows the user to specify the value class to be different
295 from the actual class (<A HREF="../../../../org/apache/hadoop/io/BytesWritable.html" title="class in org.apache.hadoop.io"><CODE>BytesWritable</CODE></A>) used for writing </p>
296<P>
297<DD><DL>
298<DT><B>Parameters:</B><DD><CODE>conf</CODE> - the <A HREF="../../../../org/apache/hadoop/mapred/JobConf.html" title="class in org.apache.hadoop.mapred"><CODE>JobConf</CODE></A> to modify<DD><CODE>theClass</CODE> - the SequenceFile output key class.</DL>
299</DD>
300</DL>
301<HR>
302
303<A NAME="getSequenceFileOutputKeyClass(org.apache.hadoop.mapred.JobConf)"><!-- --></A><H3>
304getSequenceFileOutputKeyClass</H3>
305<PRE>
306public static <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/WritableComparable.html" title="interface in org.apache.hadoop.io">WritableComparable</A>&gt; <B>getSequenceFileOutputKeyClass</B>(<A HREF="../../../../org/apache/hadoop/mapred/JobConf.html" title="class in org.apache.hadoop.mapred">JobConf</A>&nbsp;conf)</PRE>
307<DL>
308<DD>Get the key class for the <A HREF="../../../../org/apache/hadoop/io/SequenceFile.html" title="class in org.apache.hadoop.io"><CODE>SequenceFile</CODE></A>
309<P>
310<DD><DL>
311
312<DT><B>Returns:</B><DD>the key class of the <A HREF="../../../../org/apache/hadoop/io/SequenceFile.html" title="class in org.apache.hadoop.io"><CODE>SequenceFile</CODE></A></DL>
313</DD>
314</DL>
315<HR>
316
317<A NAME="getSequenceFileOutputValueClass(org.apache.hadoop.mapred.JobConf)"><!-- --></A><H3>
318getSequenceFileOutputValueClass</H3>
319<PRE>
320public static <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/Writable.html" title="interface in org.apache.hadoop.io">Writable</A>&gt; <B>getSequenceFileOutputValueClass</B>(<A HREF="../../../../org/apache/hadoop/mapred/JobConf.html" title="class in org.apache.hadoop.mapred">JobConf</A>&nbsp;conf)</PRE>
321<DL>
322<DD>Get the value class for the <A HREF="../../../../org/apache/hadoop/io/SequenceFile.html" title="class in org.apache.hadoop.io"><CODE>SequenceFile</CODE></A>
323<P>
324<DD><DL>
325
326<DT><B>Returns:</B><DD>the value class of the <A HREF="../../../../org/apache/hadoop/io/SequenceFile.html" title="class in org.apache.hadoop.io"><CODE>SequenceFile</CODE></A></DL>
327</DD>
328</DL>
329<HR>
330
331<A NAME="getRecordWriter(org.apache.hadoop.fs.FileSystem, org.apache.hadoop.mapred.JobConf, java.lang.String, org.apache.hadoop.util.Progressable)"><!-- --></A><H3>
332getRecordWriter</H3>
333<PRE>
334public <A HREF="../../../../org/apache/hadoop/mapred/RecordWriter.html" title="interface in org.apache.hadoop.mapred">RecordWriter</A>&lt;<A HREF="../../../../org/apache/hadoop/io/BytesWritable.html" title="class in org.apache.hadoop.io">BytesWritable</A>,<A HREF="../../../../org/apache/hadoop/io/BytesWritable.html" title="class in org.apache.hadoop.io">BytesWritable</A>&gt; <B>getRecordWriter</B>(<A HREF="../../../../org/apache/hadoop/fs/FileSystem.html" title="class in org.apache.hadoop.fs">FileSystem</A>&nbsp;ignored,
335                                                                 <A HREF="../../../../org/apache/hadoop/mapred/JobConf.html" title="class in org.apache.hadoop.mapred">JobConf</A>&nbsp;job,
336                                                                 <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;name,
337                                                                 <A HREF="../../../../org/apache/hadoop/util/Progressable.html" title="interface in org.apache.hadoop.util">Progressable</A>&nbsp;progress)
338                                                          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>
339<DL>
340<DD><B>Description copied from interface: <CODE><A HREF="../../../../org/apache/hadoop/mapred/OutputFormat.html#getRecordWriter(org.apache.hadoop.fs.FileSystem, org.apache.hadoop.mapred.JobConf, java.lang.String, org.apache.hadoop.util.Progressable)">OutputFormat</A></CODE></B></DD>
341<DD>Get the <A HREF="../../../../org/apache/hadoop/mapred/RecordWriter.html" title="interface in org.apache.hadoop.mapred"><CODE>RecordWriter</CODE></A> for the given job.
342<P>
343<DD><DL>
344<DT><B>Specified by:</B><DD><CODE><A HREF="../../../../org/apache/hadoop/mapred/OutputFormat.html#getRecordWriter(org.apache.hadoop.fs.FileSystem, org.apache.hadoop.mapred.JobConf, java.lang.String, org.apache.hadoop.util.Progressable)">getRecordWriter</A></CODE> in interface <CODE><A HREF="../../../../org/apache/hadoop/mapred/OutputFormat.html" title="interface in org.apache.hadoop.mapred">OutputFormat</A>&lt;<A HREF="../../../../org/apache/hadoop/io/BytesWritable.html" title="class in org.apache.hadoop.io">BytesWritable</A>,<A HREF="../../../../org/apache/hadoop/io/BytesWritable.html" title="class in org.apache.hadoop.io">BytesWritable</A>&gt;</CODE><DT><B>Overrides:</B><DD><CODE><A HREF="../../../../org/apache/hadoop/mapred/SequenceFileOutputFormat.html#getRecordWriter(org.apache.hadoop.fs.FileSystem, org.apache.hadoop.mapred.JobConf, java.lang.String, org.apache.hadoop.util.Progressable)">getRecordWriter</A></CODE> in class <CODE><A HREF="../../../../org/apache/hadoop/mapred/SequenceFileOutputFormat.html" title="class in org.apache.hadoop.mapred">SequenceFileOutputFormat</A>&lt;<A HREF="../../../../org/apache/hadoop/io/BytesWritable.html" title="class in org.apache.hadoop.io">BytesWritable</A>,<A HREF="../../../../org/apache/hadoop/io/BytesWritable.html" title="class in org.apache.hadoop.io">BytesWritable</A>&gt;</CODE></DL>
345</DD>
346<DD><DL>
347<DD><CODE>job</CODE> - configuration for the job whose output is being written.<DD><CODE>name</CODE> - the unique name for this part of the output.<DD><CODE>progress</CODE> - mechanism for reporting progress while writing to file.
348<DT><B>Returns:</B><DD>a <A HREF="../../../../org/apache/hadoop/mapred/RecordWriter.html" title="interface in org.apache.hadoop.mapred"><CODE>RecordWriter</CODE></A> to write the output for the job.
349<DT><B>Throws:</B>
350<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>
351</DD>
352</DL>
353<HR>
354
355<A NAME="checkOutputSpecs(org.apache.hadoop.fs.FileSystem, org.apache.hadoop.mapred.JobConf)"><!-- --></A><H3>
356checkOutputSpecs</H3>
357<PRE>
358public void <B>checkOutputSpecs</B>(<A HREF="../../../../org/apache/hadoop/fs/FileSystem.html" title="class in org.apache.hadoop.fs">FileSystem</A>&nbsp;ignored,
359                             <A HREF="../../../../org/apache/hadoop/mapred/JobConf.html" title="class in org.apache.hadoop.mapred">JobConf</A>&nbsp;job)
360                      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>
361<DL>
362<DD><B>Description copied from interface: <CODE><A HREF="../../../../org/apache/hadoop/mapred/OutputFormat.html#checkOutputSpecs(org.apache.hadoop.fs.FileSystem, org.apache.hadoop.mapred.JobConf)">OutputFormat</A></CODE></B></DD>
363<DD>Check for validity of the output-specification for the job.
364 
365 <p>This is to validate the output specification for the job when it is
366 a job is submitted.  Typically checks that it does not already exist,
367 throwing an exception when it already exists, so that output is not
368 overwritten.</p>
369<P>
370<DD><DL>
371<DT><B>Specified by:</B><DD><CODE><A HREF="../../../../org/apache/hadoop/mapred/OutputFormat.html#checkOutputSpecs(org.apache.hadoop.fs.FileSystem, org.apache.hadoop.mapred.JobConf)">checkOutputSpecs</A></CODE> in interface <CODE><A HREF="../../../../org/apache/hadoop/mapred/OutputFormat.html" title="interface in org.apache.hadoop.mapred">OutputFormat</A>&lt;<A HREF="../../../../org/apache/hadoop/io/BytesWritable.html" title="class in org.apache.hadoop.io">BytesWritable</A>,<A HREF="../../../../org/apache/hadoop/io/BytesWritable.html" title="class in org.apache.hadoop.io">BytesWritable</A>&gt;</CODE><DT><B>Overrides:</B><DD><CODE><A HREF="../../../../org/apache/hadoop/mapred/FileOutputFormat.html#checkOutputSpecs(org.apache.hadoop.fs.FileSystem, org.apache.hadoop.mapred.JobConf)">checkOutputSpecs</A></CODE> in class <CODE><A HREF="../../../../org/apache/hadoop/mapred/FileOutputFormat.html" title="class in org.apache.hadoop.mapred">FileOutputFormat</A>&lt;<A HREF="../../../../org/apache/hadoop/io/BytesWritable.html" title="class in org.apache.hadoop.io">BytesWritable</A>,<A HREF="../../../../org/apache/hadoop/io/BytesWritable.html" title="class in org.apache.hadoop.io">BytesWritable</A>&gt;</CODE></DL>
372</DD>
373<DD><DL>
374<DD><CODE>job</CODE> - job configuration.
375<DT><B>Throws:</B>
376<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> - when output should not be attempted</DL>
377</DD>
378</DL>
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