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7KeyValueTextInputFormat (Hadoop 0.20.1 API)
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79  SUMMARY:&nbsp;NESTED&nbsp;|&nbsp;<A HREF="#fields_inherited_from_class_org.apache.hadoop.mapred.FileInputFormat">FIELD</A>&nbsp;|&nbsp;<A HREF="#constructor_summary">CONSTR</A>&nbsp;|&nbsp;<A HREF="#method_summary">METHOD</A></FONT></TD>
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91org.apache.hadoop.mapred</FONT>
92<BR>
93Class KeyValueTextInputFormat</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/FileInputFormat.html" title="class in org.apache.hadoop.mapred">org.apache.hadoop.mapred.FileInputFormat</A>&lt;<A HREF="../../../../org/apache/hadoop/io/Text.html" title="class in org.apache.hadoop.io">Text</A>,<A HREF="../../../../org/apache/hadoop/io/Text.html" title="class in org.apache.hadoop.io">Text</A>&gt;
97      <IMG SRC="../../../../resources/inherit.gif" ALT="extended by "><B>org.apache.hadoop.mapred.KeyValueTextInputFormat</B>
98</PRE>
99<DL>
100<DT><B>All Implemented Interfaces:</B> <DD><A HREF="../../../../org/apache/hadoop/mapred/InputFormat.html" title="interface in org.apache.hadoop.mapred">InputFormat</A>&lt;<A HREF="../../../../org/apache/hadoop/io/Text.html" title="class in org.apache.hadoop.io">Text</A>,<A HREF="../../../../org/apache/hadoop/io/Text.html" title="class in org.apache.hadoop.io">Text</A>&gt;, <A HREF="../../../../org/apache/hadoop/mapred/JobConfigurable.html" title="interface in org.apache.hadoop.mapred">JobConfigurable</A></DD>
101</DL>
102<DL>
103<DT><B>Direct Known Subclasses:</B> <DD><A HREF="../../../../org/apache/hadoop/streaming/StreamInputFormat.html" title="class in org.apache.hadoop.streaming">StreamInputFormat</A></DD>
104</DL>
105<HR>
106<DL>
107<DT><PRE>public class <B>KeyValueTextInputFormat</B><DT>extends <A HREF="../../../../org/apache/hadoop/mapred/FileInputFormat.html" title="class in org.apache.hadoop.mapred">FileInputFormat</A>&lt;<A HREF="../../../../org/apache/hadoop/io/Text.html" title="class in org.apache.hadoop.io">Text</A>,<A HREF="../../../../org/apache/hadoop/io/Text.html" title="class in org.apache.hadoop.io">Text</A>&gt;<DT>implements <A HREF="../../../../org/apache/hadoop/mapred/JobConfigurable.html" title="interface in org.apache.hadoop.mapred">JobConfigurable</A></DL>
108</PRE>
109
110<P>
111An <A HREF="../../../../org/apache/hadoop/mapred/InputFormat.html" title="interface in org.apache.hadoop.mapred"><CODE>InputFormat</CODE></A> for plain text files. Files are broken into lines.
112 Either linefeed or carriage-return are used to signal end of line. Each line
113 is divided into key and value parts by a separator byte. If no such a byte
114 exists, the key will be the entire line and value will be empty.
115<P>
116
117<P>
118<HR>
119
120<P>
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126<TH ALIGN="left" COLSPAN="2"><FONT SIZE="+2">
127<B>Field Summary</B></FONT></TH>
128</TR>
129</TABLE>
130&nbsp;<A NAME="fields_inherited_from_class_org.apache.hadoop.mapred.FileInputFormat"><!-- --></A>
131<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
132<TR BGCOLOR="#EEEEFF" CLASS="TableSubHeadingColor">
133<TH ALIGN="left"><B>Fields inherited from class org.apache.hadoop.mapred.<A HREF="../../../../org/apache/hadoop/mapred/FileInputFormat.html" title="class in org.apache.hadoop.mapred">FileInputFormat</A></B></TH>
134</TR>
135<TR BGCOLOR="white" CLASS="TableRowColor">
136<TD><CODE><A HREF="../../../../org/apache/hadoop/mapred/FileInputFormat.html#LOG">LOG</A></CODE></TD>
137</TR>
138</TABLE>
139&nbsp;
140<!-- ======== CONSTRUCTOR SUMMARY ======== -->
141
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145<TH ALIGN="left" COLSPAN="2"><FONT SIZE="+2">
146<B>Constructor Summary</B></FONT></TH>
147</TR>
148<TR BGCOLOR="white" CLASS="TableRowColor">
149<TD><CODE><B><A HREF="../../../../org/apache/hadoop/mapred/KeyValueTextInputFormat.html#KeyValueTextInputFormat()">KeyValueTextInputFormat</A></B>()</CODE>
150
151<BR>
152&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</TD>
153</TR>
154</TABLE>
155&nbsp;
156<!-- ========== METHOD SUMMARY =========== -->
157
158<A NAME="method_summary"><!-- --></A>
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161<TH ALIGN="left" COLSPAN="2"><FONT SIZE="+2">
162<B>Method Summary</B></FONT></TH>
163</TR>
164<TR BGCOLOR="white" CLASS="TableRowColor">
165<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
166<CODE>&nbsp;void</CODE></FONT></TD>
167<TD><CODE><B><A HREF="../../../../org/apache/hadoop/mapred/KeyValueTextInputFormat.html#configure(org.apache.hadoop.mapred.JobConf)">configure</A></B>(<A HREF="../../../../org/apache/hadoop/mapred/JobConf.html" title="class in org.apache.hadoop.mapred">JobConf</A>&nbsp;conf)</CODE>
168
169<BR>
170&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Initializes a new instance from a <A HREF="../../../../org/apache/hadoop/mapred/JobConf.html" title="class in org.apache.hadoop.mapred"><CODE>JobConf</CODE></A>.</TD>
171</TR>
172<TR BGCOLOR="white" CLASS="TableRowColor">
173<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
174<CODE>&nbsp;<A HREF="../../../../org/apache/hadoop/mapred/RecordReader.html" title="interface in org.apache.hadoop.mapred">RecordReader</A>&lt;<A HREF="../../../../org/apache/hadoop/io/Text.html" title="class in org.apache.hadoop.io">Text</A>,<A HREF="../../../../org/apache/hadoop/io/Text.html" title="class in org.apache.hadoop.io">Text</A>&gt;</CODE></FONT></TD>
175<TD><CODE><B><A HREF="../../../../org/apache/hadoop/mapred/KeyValueTextInputFormat.html#getRecordReader(org.apache.hadoop.mapred.InputSplit, org.apache.hadoop.mapred.JobConf, org.apache.hadoop.mapred.Reporter)">getRecordReader</A></B>(<A HREF="../../../../org/apache/hadoop/mapred/InputSplit.html" title="interface in org.apache.hadoop.mapred">InputSplit</A>&nbsp;genericSplit,
176                <A HREF="../../../../org/apache/hadoop/mapred/JobConf.html" title="class in org.apache.hadoop.mapred">JobConf</A>&nbsp;job,
177                <A HREF="../../../../org/apache/hadoop/mapred/Reporter.html" title="interface in org.apache.hadoop.mapred">Reporter</A>&nbsp;reporter)</CODE>
178
179<BR>
180&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Get the <A HREF="../../../../org/apache/hadoop/mapred/RecordReader.html" title="interface in org.apache.hadoop.mapred"><CODE>RecordReader</CODE></A> for the given <A HREF="../../../../org/apache/hadoop/mapred/InputSplit.html" title="interface in org.apache.hadoop.mapred"><CODE>InputSplit</CODE></A>.</TD>
181</TR>
182<TR BGCOLOR="white" CLASS="TableRowColor">
183<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
184<CODE>protected &nbsp;boolean</CODE></FONT></TD>
185<TD><CODE><B><A HREF="../../../../org/apache/hadoop/mapred/KeyValueTextInputFormat.html#isSplitable(org.apache.hadoop.fs.FileSystem, org.apache.hadoop.fs.Path)">isSplitable</A></B>(<A HREF="../../../../org/apache/hadoop/fs/FileSystem.html" title="class in org.apache.hadoop.fs">FileSystem</A>&nbsp;fs,
186            <A HREF="../../../../org/apache/hadoop/fs/Path.html" title="class in org.apache.hadoop.fs">Path</A>&nbsp;file)</CODE>
187
188<BR>
189&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Is the given filename splitable? Usually, true, but if the file is
190 stream compressed, it will not be.</TD>
191</TR>
192</TABLE>
193&nbsp;<A NAME="methods_inherited_from_class_org.apache.hadoop.mapred.FileInputFormat"><!-- --></A>
194<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
195<TR BGCOLOR="#EEEEFF" CLASS="TableSubHeadingColor">
196<TH ALIGN="left"><B>Methods inherited from class org.apache.hadoop.mapred.<A HREF="../../../../org/apache/hadoop/mapred/FileInputFormat.html" title="class in org.apache.hadoop.mapred">FileInputFormat</A></B></TH>
197</TR>
198<TR BGCOLOR="white" CLASS="TableRowColor">
199<TD><CODE><A HREF="../../../../org/apache/hadoop/mapred/FileInputFormat.html#addInputPath(org.apache.hadoop.mapred.JobConf, org.apache.hadoop.fs.Path)">addInputPath</A>, <A HREF="../../../../org/apache/hadoop/mapred/FileInputFormat.html#addInputPaths(org.apache.hadoop.mapred.JobConf, java.lang.String)">addInputPaths</A>, <A HREF="../../../../org/apache/hadoop/mapred/FileInputFormat.html#computeSplitSize(long, long, long)">computeSplitSize</A>, <A HREF="../../../../org/apache/hadoop/mapred/FileInputFormat.html#getBlockIndex(org.apache.hadoop.fs.BlockLocation[], long)">getBlockIndex</A>, <A HREF="../../../../org/apache/hadoop/mapred/FileInputFormat.html#getInputPathFilter(org.apache.hadoop.mapred.JobConf)">getInputPathFilter</A>, <A HREF="../../../../org/apache/hadoop/mapred/FileInputFormat.html#getInputPaths(org.apache.hadoop.mapred.JobConf)">getInputPaths</A>, <A HREF="../../../../org/apache/hadoop/mapred/FileInputFormat.html#getSplitHosts(org.apache.hadoop.fs.BlockLocation[], long, long, org.apache.hadoop.net.NetworkTopology)">getSplitHosts</A>, <A HREF="../../../../org/apache/hadoop/mapred/FileInputFormat.html#getSplits(org.apache.hadoop.mapred.JobConf, int)">getSplits</A>, <A HREF="../../../../org/apache/hadoop/mapred/FileInputFormat.html#listStatus(org.apache.hadoop.mapred.JobConf)">listStatus</A>, <A HREF="../../../../org/apache/hadoop/mapred/FileInputFormat.html#setInputPathFilter(org.apache.hadoop.mapred.JobConf, java.lang.Class)">setInputPathFilter</A>, <A HREF="../../../../org/apache/hadoop/mapred/FileInputFormat.html#setInputPaths(org.apache.hadoop.mapred.JobConf, org.apache.hadoop.fs.Path...)">setInputPaths</A>, <A HREF="../../../../org/apache/hadoop/mapred/FileInputFormat.html#setInputPaths(org.apache.hadoop.mapred.JobConf, java.lang.String)">setInputPaths</A>, <A HREF="../../../../org/apache/hadoop/mapred/FileInputFormat.html#setMinSplitSize(long)">setMinSplitSize</A></CODE></TD>
200</TR>
201</TABLE>
202&nbsp;<A NAME="methods_inherited_from_class_java.lang.Object"><!-- --></A>
203<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
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205<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>
206</TR>
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208<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>
209</TR>
210</TABLE>
211&nbsp;
212<P>
213
214<!-- ========= CONSTRUCTOR DETAIL ======== -->
215
216<A NAME="constructor_detail"><!-- --></A>
217<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
218<TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor">
219<TH ALIGN="left" COLSPAN="1"><FONT SIZE="+2">
220<B>Constructor Detail</B></FONT></TH>
221</TR>
222</TABLE>
223
224<A NAME="KeyValueTextInputFormat()"><!-- --></A><H3>
225KeyValueTextInputFormat</H3>
226<PRE>
227public <B>KeyValueTextInputFormat</B>()</PRE>
228<DL>
229</DL>
230
231<!-- ============ METHOD DETAIL ========== -->
232
233<A NAME="method_detail"><!-- --></A>
234<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
235<TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor">
236<TH ALIGN="left" COLSPAN="1"><FONT SIZE="+2">
237<B>Method Detail</B></FONT></TH>
238</TR>
239</TABLE>
240
241<A NAME="configure(org.apache.hadoop.mapred.JobConf)"><!-- --></A><H3>
242configure</H3>
243<PRE>
244public void <B>configure</B>(<A HREF="../../../../org/apache/hadoop/mapred/JobConf.html" title="class in org.apache.hadoop.mapred">JobConf</A>&nbsp;conf)</PRE>
245<DL>
246<DD><B>Description copied from interface: <CODE><A HREF="../../../../org/apache/hadoop/mapred/JobConfigurable.html#configure(org.apache.hadoop.mapred.JobConf)">JobConfigurable</A></CODE></B></DD>
247<DD>Initializes a new instance from a <A HREF="../../../../org/apache/hadoop/mapred/JobConf.html" title="class in org.apache.hadoop.mapred"><CODE>JobConf</CODE></A>.
248<P>
249<DD><DL>
250<DT><B>Specified by:</B><DD><CODE><A HREF="../../../../org/apache/hadoop/mapred/JobConfigurable.html#configure(org.apache.hadoop.mapred.JobConf)">configure</A></CODE> in interface <CODE><A HREF="../../../../org/apache/hadoop/mapred/JobConfigurable.html" title="interface in org.apache.hadoop.mapred">JobConfigurable</A></CODE></DL>
251</DD>
252<DD><DL>
253<DT><B>Parameters:</B><DD><CODE>conf</CODE> - the configuration</DL>
254</DD>
255</DL>
256<HR>
257
258<A NAME="isSplitable(org.apache.hadoop.fs.FileSystem, org.apache.hadoop.fs.Path)"><!-- --></A><H3>
259isSplitable</H3>
260<PRE>
261protected boolean <B>isSplitable</B>(<A HREF="../../../../org/apache/hadoop/fs/FileSystem.html" title="class in org.apache.hadoop.fs">FileSystem</A>&nbsp;fs,
262                              <A HREF="../../../../org/apache/hadoop/fs/Path.html" title="class in org.apache.hadoop.fs">Path</A>&nbsp;file)</PRE>
263<DL>
264<DD><B>Description copied from class: <CODE><A HREF="../../../../org/apache/hadoop/mapred/FileInputFormat.html#isSplitable(org.apache.hadoop.fs.FileSystem, org.apache.hadoop.fs.Path)">FileInputFormat</A></CODE></B></DD>
265<DD>Is the given filename splitable? Usually, true, but if the file is
266 stream compressed, it will not be.
267 
268 <code>FileInputFormat</code> implementations can override this and return
269 <code>false</code> to ensure that individual input files are never split-up
270 so that <A HREF="../../../../org/apache/hadoop/mapred/Mapper.html" title="interface in org.apache.hadoop.mapred"><CODE>Mapper</CODE></A>s process entire files.
271<P>
272<DD><DL>
273<DT><B>Overrides:</B><DD><CODE><A HREF="../../../../org/apache/hadoop/mapred/FileInputFormat.html#isSplitable(org.apache.hadoop.fs.FileSystem, org.apache.hadoop.fs.Path)">isSplitable</A></CODE> in class <CODE><A HREF="../../../../org/apache/hadoop/mapred/FileInputFormat.html" title="class in org.apache.hadoop.mapred">FileInputFormat</A>&lt;<A HREF="../../../../org/apache/hadoop/io/Text.html" title="class in org.apache.hadoop.io">Text</A>,<A HREF="../../../../org/apache/hadoop/io/Text.html" title="class in org.apache.hadoop.io">Text</A>&gt;</CODE></DL>
274</DD>
275<DD><DL>
276<DT><B>Parameters:</B><DD><CODE>fs</CODE> - the file system that the file is on<DD><CODE>file</CODE> - the file name to check
277<DT><B>Returns:</B><DD>is this file splitable?</DL>
278</DD>
279</DL>
280<HR>
281
282<A NAME="getRecordReader(org.apache.hadoop.mapred.InputSplit, org.apache.hadoop.mapred.JobConf, org.apache.hadoop.mapred.Reporter)"><!-- --></A><H3>
283getRecordReader</H3>
284<PRE>
285public <A HREF="../../../../org/apache/hadoop/mapred/RecordReader.html" title="interface in org.apache.hadoop.mapred">RecordReader</A>&lt;<A HREF="../../../../org/apache/hadoop/io/Text.html" title="class in org.apache.hadoop.io">Text</A>,<A HREF="../../../../org/apache/hadoop/io/Text.html" title="class in org.apache.hadoop.io">Text</A>&gt; <B>getRecordReader</B>(<A HREF="../../../../org/apache/hadoop/mapred/InputSplit.html" title="interface in org.apache.hadoop.mapred">InputSplit</A>&nbsp;genericSplit,
286                                               <A HREF="../../../../org/apache/hadoop/mapred/JobConf.html" title="class in org.apache.hadoop.mapred">JobConf</A>&nbsp;job,
287                                               <A HREF="../../../../org/apache/hadoop/mapred/Reporter.html" title="interface in org.apache.hadoop.mapred">Reporter</A>&nbsp;reporter)
288                                        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>
289<DL>
290<DD><B>Description copied from interface: <CODE><A HREF="../../../../org/apache/hadoop/mapred/InputFormat.html#getRecordReader(org.apache.hadoop.mapred.InputSplit, org.apache.hadoop.mapred.JobConf, org.apache.hadoop.mapred.Reporter)">InputFormat</A></CODE></B></DD>
291<DD>Get the <A HREF="../../../../org/apache/hadoop/mapred/RecordReader.html" title="interface in org.apache.hadoop.mapred"><CODE>RecordReader</CODE></A> for the given <A HREF="../../../../org/apache/hadoop/mapred/InputSplit.html" title="interface in org.apache.hadoop.mapred"><CODE>InputSplit</CODE></A>.
292
293 <p>It is the responsibility of the <code>RecordReader</code> to respect
294 record boundaries while processing the logical split to present a
295 record-oriented view to the individual task.</p>
296<P>
297<DD><DL>
298<DT><B>Specified by:</B><DD><CODE><A HREF="../../../../org/apache/hadoop/mapred/InputFormat.html#getRecordReader(org.apache.hadoop.mapred.InputSplit, org.apache.hadoop.mapred.JobConf, org.apache.hadoop.mapred.Reporter)">getRecordReader</A></CODE> in interface <CODE><A HREF="../../../../org/apache/hadoop/mapred/InputFormat.html" title="interface in org.apache.hadoop.mapred">InputFormat</A>&lt;<A HREF="../../../../org/apache/hadoop/io/Text.html" title="class in org.apache.hadoop.io">Text</A>,<A HREF="../../../../org/apache/hadoop/io/Text.html" title="class in org.apache.hadoop.io">Text</A>&gt;</CODE><DT><B>Specified by:</B><DD><CODE><A HREF="../../../../org/apache/hadoop/mapred/FileInputFormat.html#getRecordReader(org.apache.hadoop.mapred.InputSplit, org.apache.hadoop.mapred.JobConf, org.apache.hadoop.mapred.Reporter)">getRecordReader</A></CODE> in class <CODE><A HREF="../../../../org/apache/hadoop/mapred/FileInputFormat.html" title="class in org.apache.hadoop.mapred">FileInputFormat</A>&lt;<A HREF="../../../../org/apache/hadoop/io/Text.html" title="class in org.apache.hadoop.io">Text</A>,<A HREF="../../../../org/apache/hadoop/io/Text.html" title="class in org.apache.hadoop.io">Text</A>&gt;</CODE></DL>
299</DD>
300<DD><DL>
301<DT><B>Parameters:</B><DD><CODE>genericSplit</CODE> - the <A HREF="../../../../org/apache/hadoop/mapred/InputSplit.html" title="interface in org.apache.hadoop.mapred"><CODE>InputSplit</CODE></A><DD><CODE>job</CODE> - the job that this split belongs to
302<DT><B>Returns:</B><DD>a <A HREF="../../../../org/apache/hadoop/mapred/RecordReader.html" title="interface in org.apache.hadoop.mapred"><CODE>RecordReader</CODE></A>
303<DT><B>Throws:</B>
304<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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