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7MapFileOutputFormat (Hadoop 0.20.1 API)
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91org.apache.hadoop.mapred</FONT>
92<BR>
93Class MapFileOutputFormat</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;<A HREF="../../../../org/apache/hadoop/io/WritableComparable.html" title="interface in org.apache.hadoop.io">WritableComparable</A>,<A HREF="../../../../org/apache/hadoop/io/Writable.html" title="interface in org.apache.hadoop.io">Writable</A>&gt;
97      <IMG SRC="../../../../resources/inherit.gif" ALT="extended by "><B>org.apache.hadoop.mapred.MapFileOutputFormat</B>
98</PRE>
99<DL>
100<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/WritableComparable.html" title="interface in org.apache.hadoop.io">WritableComparable</A>,<A HREF="../../../../org/apache/hadoop/io/Writable.html" title="interface in org.apache.hadoop.io">Writable</A>&gt;</DD>
101</DL>
102<HR>
103<DL>
104<DT><PRE>public class <B>MapFileOutputFormat</B><DT>extends <A HREF="../../../../org/apache/hadoop/mapred/FileOutputFormat.html" title="class in org.apache.hadoop.mapred">FileOutputFormat</A>&lt;<A HREF="../../../../org/apache/hadoop/io/WritableComparable.html" title="interface in org.apache.hadoop.io">WritableComparable</A>,<A HREF="../../../../org/apache/hadoop/io/Writable.html" title="interface in org.apache.hadoop.io">Writable</A>&gt;</DL>
105</PRE>
106
107<P>
108An <A HREF="../../../../org/apache/hadoop/mapred/OutputFormat.html" title="interface in org.apache.hadoop.mapred"><CODE>OutputFormat</CODE></A> that writes <A HREF="../../../../org/apache/hadoop/io/MapFile.html" title="class in org.apache.hadoop.io"><CODE>MapFile</CODE></A>s.
109<P>
110
111<P>
112<HR>
113
114<P>
115
116<!-- ======== CONSTRUCTOR SUMMARY ======== -->
117
118<A NAME="constructor_summary"><!-- --></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">
122<B>Constructor Summary</B></FONT></TH>
123</TR>
124<TR BGCOLOR="white" CLASS="TableRowColor">
125<TD><CODE><B><A HREF="../../../../org/apache/hadoop/mapred/MapFileOutputFormat.html#MapFileOutputFormat()">MapFileOutputFormat</A></B>()</CODE>
126
127<BR>
128&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</TD>
129</TR>
130</TABLE>
131&nbsp;
132<!-- ========== METHOD SUMMARY =========== -->
133
134<A NAME="method_summary"><!-- --></A>
135<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
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137<TH ALIGN="left" COLSPAN="2"><FONT SIZE="+2">
138<B>Method Summary</B></FONT></TH>
139</TR>
140<TR BGCOLOR="white" CLASS="TableRowColor">
141<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
142<CODE>static
143<TABLE BORDER="0" CELLPADDING="0" CELLSPACING="0" SUMMARY="">
144<TR ALIGN="right" VALIGN="">
145<TD NOWRAP><FONT SIZE="-1">
146<CODE>&lt;K extends <A HREF="../../../../org/apache/hadoop/io/WritableComparable.html" title="interface in org.apache.hadoop.io">WritableComparable</A>,V extends <A HREF="../../../../org/apache/hadoop/io/Writable.html" title="interface in org.apache.hadoop.io">Writable</A>&gt; 
147<BR>
148<A HREF="../../../../org/apache/hadoop/io/Writable.html" title="interface in org.apache.hadoop.io">Writable</A></CODE></FONT></TD>
149</TR>
150</TABLE>
151</CODE></FONT></TD>
152<TD><CODE><B><A HREF="../../../../org/apache/hadoop/mapred/MapFileOutputFormat.html#getEntry(org.apache.hadoop.io.MapFile.Reader[], org.apache.hadoop.mapred.Partitioner, K, V)">getEntry</A></B>(<A HREF="../../../../org/apache/hadoop/io/MapFile.Reader.html" title="class in org.apache.hadoop.io">MapFile.Reader</A>[]&nbsp;readers,
153         <A HREF="../../../../org/apache/hadoop/mapred/Partitioner.html" title="interface in org.apache.hadoop.mapred">Partitioner</A>&lt;K,V&gt;&nbsp;partitioner,
154         K&nbsp;key,
155         V&nbsp;value)</CODE>
156
157<BR>
158&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Get an entry from output generated by this class.</TD>
159</TR>
160<TR BGCOLOR="white" CLASS="TableRowColor">
161<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
162<CODE>static&nbsp;<A HREF="../../../../org/apache/hadoop/io/MapFile.Reader.html" title="class in org.apache.hadoop.io">MapFile.Reader</A>[]</CODE></FONT></TD>
163<TD><CODE><B><A HREF="../../../../org/apache/hadoop/mapred/MapFileOutputFormat.html#getReaders(org.apache.hadoop.fs.FileSystem, org.apache.hadoop.fs.Path, org.apache.hadoop.conf.Configuration)">getReaders</A></B>(<A HREF="../../../../org/apache/hadoop/fs/FileSystem.html" title="class in org.apache.hadoop.fs">FileSystem</A>&nbsp;ignored,
164           <A HREF="../../../../org/apache/hadoop/fs/Path.html" title="class in org.apache.hadoop.fs">Path</A>&nbsp;dir,
165           <A HREF="../../../../org/apache/hadoop/conf/Configuration.html" title="class in org.apache.hadoop.conf">Configuration</A>&nbsp;conf)</CODE>
166
167<BR>
168&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Open the output generated by this format.</TD>
169</TR>
170<TR BGCOLOR="white" CLASS="TableRowColor">
171<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
172<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/WritableComparable.html" title="interface in org.apache.hadoop.io">WritableComparable</A>,<A HREF="../../../../org/apache/hadoop/io/Writable.html" title="interface in org.apache.hadoop.io">Writable</A>&gt;</CODE></FONT></TD>
173<TD><CODE><B><A HREF="../../../../org/apache/hadoop/mapred/MapFileOutputFormat.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,
174                <A HREF="../../../../org/apache/hadoop/mapred/JobConf.html" title="class in org.apache.hadoop.mapred">JobConf</A>&nbsp;job,
175                <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,
176                <A HREF="../../../../org/apache/hadoop/util/Progressable.html" title="interface in org.apache.hadoop.util">Progressable</A>&nbsp;progress)</CODE>
177
178<BR>
179&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>
180</TR>
181</TABLE>
182&nbsp;<A NAME="methods_inherited_from_class_org.apache.hadoop.mapred.FileOutputFormat"><!-- --></A>
183<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
184<TR BGCOLOR="#EEEEFF" CLASS="TableSubHeadingColor">
185<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>
186</TR>
187<TR BGCOLOR="white" CLASS="TableRowColor">
188<TD><CODE><A HREF="../../../../org/apache/hadoop/mapred/FileOutputFormat.html#checkOutputSpecs(org.apache.hadoop.fs.FileSystem, org.apache.hadoop.mapred.JobConf)">checkOutputSpecs</A>, <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>
189</TR>
190</TABLE>
191&nbsp;<A NAME="methods_inherited_from_class_java.lang.Object"><!-- --></A>
192<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
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194<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>
195</TR>
196<TR BGCOLOR="white" CLASS="TableRowColor">
197<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>
198</TR>
199</TABLE>
200&nbsp;
201<P>
202
203<!-- ========= CONSTRUCTOR DETAIL ======== -->
204
205<A NAME="constructor_detail"><!-- --></A>
206<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
207<TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor">
208<TH ALIGN="left" COLSPAN="1"><FONT SIZE="+2">
209<B>Constructor Detail</B></FONT></TH>
210</TR>
211</TABLE>
212
213<A NAME="MapFileOutputFormat()"><!-- --></A><H3>
214MapFileOutputFormat</H3>
215<PRE>
216public <B>MapFileOutputFormat</B>()</PRE>
217<DL>
218</DL>
219
220<!-- ============ METHOD DETAIL ========== -->
221
222<A NAME="method_detail"><!-- --></A>
223<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
224<TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor">
225<TH ALIGN="left" COLSPAN="1"><FONT SIZE="+2">
226<B>Method Detail</B></FONT></TH>
227</TR>
228</TABLE>
229
230<A NAME="getRecordWriter(org.apache.hadoop.fs.FileSystem, org.apache.hadoop.mapred.JobConf, java.lang.String, org.apache.hadoop.util.Progressable)"><!-- --></A><H3>
231getRecordWriter</H3>
232<PRE>
233public <A HREF="../../../../org/apache/hadoop/mapred/RecordWriter.html" title="interface in org.apache.hadoop.mapred">RecordWriter</A>&lt;<A HREF="../../../../org/apache/hadoop/io/WritableComparable.html" title="interface in org.apache.hadoop.io">WritableComparable</A>,<A HREF="../../../../org/apache/hadoop/io/Writable.html" title="interface in org.apache.hadoop.io">Writable</A>&gt; <B>getRecordWriter</B>(<A HREF="../../../../org/apache/hadoop/fs/FileSystem.html" title="class in org.apache.hadoop.fs">FileSystem</A>&nbsp;ignored,
234                                                                 <A HREF="../../../../org/apache/hadoop/mapred/JobConf.html" title="class in org.apache.hadoop.mapred">JobConf</A>&nbsp;job,
235                                                                 <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,
236                                                                 <A HREF="../../../../org/apache/hadoop/util/Progressable.html" title="interface in org.apache.hadoop.util">Progressable</A>&nbsp;progress)
237                                                          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>
238<DL>
239<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>
240<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.
241<P>
242<DD><DL>
243<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/WritableComparable.html" title="interface in org.apache.hadoop.io">WritableComparable</A>,<A HREF="../../../../org/apache/hadoop/io/Writable.html" title="interface in org.apache.hadoop.io">Writable</A>&gt;</CODE><DT><B>Specified by:</B><DD><CODE><A HREF="../../../../org/apache/hadoop/mapred/FileOutputFormat.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/FileOutputFormat.html" title="class in org.apache.hadoop.mapred">FileOutputFormat</A>&lt;<A HREF="../../../../org/apache/hadoop/io/WritableComparable.html" title="interface in org.apache.hadoop.io">WritableComparable</A>,<A HREF="../../../../org/apache/hadoop/io/Writable.html" title="interface in org.apache.hadoop.io">Writable</A>&gt;</CODE></DL>
244</DD>
245<DD><DL>
246<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.
247<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.
248<DT><B>Throws:</B>
249<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>
250</DD>
251</DL>
252<HR>
253
254<A NAME="getReaders(org.apache.hadoop.fs.FileSystem, org.apache.hadoop.fs.Path, org.apache.hadoop.conf.Configuration)"><!-- --></A><H3>
255getReaders</H3>
256<PRE>
257public static <A HREF="../../../../org/apache/hadoop/io/MapFile.Reader.html" title="class in org.apache.hadoop.io">MapFile.Reader</A>[] <B>getReaders</B>(<A HREF="../../../../org/apache/hadoop/fs/FileSystem.html" title="class in org.apache.hadoop.fs">FileSystem</A>&nbsp;ignored,
258                                          <A HREF="../../../../org/apache/hadoop/fs/Path.html" title="class in org.apache.hadoop.fs">Path</A>&nbsp;dir,
259                                          <A HREF="../../../../org/apache/hadoop/conf/Configuration.html" title="class in org.apache.hadoop.conf">Configuration</A>&nbsp;conf)
260                                   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>
261<DL>
262<DD>Open the output generated by this format.
263<P>
264<DD><DL>
265
266<DT><B>Throws:</B>
267<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>
268</DD>
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271
272<A NAME="getEntry(org.apache.hadoop.io.MapFile.Reader[],org.apache.hadoop.mapred.Partitioner,org.apache.hadoop.io.WritableComparable,org.apache.hadoop.io.Writable)"><!-- --></A><A NAME="getEntry(org.apache.hadoop.io.MapFile.Reader[], org.apache.hadoop.mapred.Partitioner, K, V)"><!-- --></A><H3>
273getEntry</H3>
274<PRE>
275public static &lt;K extends <A HREF="../../../../org/apache/hadoop/io/WritableComparable.html" title="interface in org.apache.hadoop.io">WritableComparable</A>,V extends <A HREF="../../../../org/apache/hadoop/io/Writable.html" title="interface in org.apache.hadoop.io">Writable</A>&gt; <A HREF="../../../../org/apache/hadoop/io/Writable.html" title="interface in org.apache.hadoop.io">Writable</A> <B>getEntry</B>(<A HREF="../../../../org/apache/hadoop/io/MapFile.Reader.html" title="class in org.apache.hadoop.io">MapFile.Reader</A>[]&nbsp;readers,
276                                                                                  <A HREF="../../../../org/apache/hadoop/mapred/Partitioner.html" title="interface in org.apache.hadoop.mapred">Partitioner</A>&lt;K,V&gt;&nbsp;partitioner,
277                                                                                  K&nbsp;key,
278                                                                                  V&nbsp;value)
279                         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>
280<DL>
281<DD>Get an entry from output generated by this class.
282<P>
283<DD><DL>
284
285<DT><B>Throws:</B>
286<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>
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