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7SequenceFileAsTextRecordReader (Hadoop 0.20.1 API)
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91org.apache.hadoop.mapred</FONT>
92<BR>
93Class SequenceFileAsTextRecordReader</H2>
94<PRE>
95<A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">java.lang.Object</A>
96  <IMG SRC="../../../../resources/inherit.gif" ALT="extended by "><B>org.apache.hadoop.mapred.SequenceFileAsTextRecordReader</B>
97</PRE>
98<DL>
99<DT><B>All Implemented Interfaces:</B> <DD><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;</DD>
100</DL>
101<HR>
102<DL>
103<DT><PRE>public class <B>SequenceFileAsTextRecordReader</B><DT>extends <A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</A><DT>implements <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;</DL>
104</PRE>
105
106<P>
107This class converts the input keys and values to their String forms by calling toString()
108 method. This class to SequenceFileAsTextInputFormat class is as LineRecordReader
109 class to TextInputFormat class.
110<P>
111
112<P>
113<HR>
114
115<P>
116
117<!-- ======== CONSTRUCTOR SUMMARY ======== -->
118
119<A NAME="constructor_summary"><!-- --></A>
120<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
121<TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor">
122<TH ALIGN="left" COLSPAN="2"><FONT SIZE="+2">
123<B>Constructor Summary</B></FONT></TH>
124</TR>
125<TR BGCOLOR="white" CLASS="TableRowColor">
126<TD><CODE><B><A HREF="../../../../org/apache/hadoop/mapred/SequenceFileAsTextRecordReader.html#SequenceFileAsTextRecordReader(org.apache.hadoop.conf.Configuration, org.apache.hadoop.mapred.FileSplit)">SequenceFileAsTextRecordReader</A></B>(<A HREF="../../../../org/apache/hadoop/conf/Configuration.html" title="class in org.apache.hadoop.conf">Configuration</A>&nbsp;conf,
127                               <A HREF="../../../../org/apache/hadoop/mapred/FileSplit.html" title="class in org.apache.hadoop.mapred">FileSplit</A>&nbsp;split)</CODE>
128
129<BR>
130&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</TD>
131</TR>
132</TABLE>
133&nbsp;
134<!-- ========== METHOD SUMMARY =========== -->
135
136<A NAME="method_summary"><!-- --></A>
137<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
138<TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor">
139<TH ALIGN="left" COLSPAN="2"><FONT SIZE="+2">
140<B>Method Summary</B></FONT></TH>
141</TR>
142<TR BGCOLOR="white" CLASS="TableRowColor">
143<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
144<CODE>&nbsp;void</CODE></FONT></TD>
145<TD><CODE><B><A HREF="../../../../org/apache/hadoop/mapred/SequenceFileAsTextRecordReader.html#close()">close</A></B>()</CODE>
146
147<BR>
148&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Close this <A HREF="../../../../org/apache/hadoop/mapred/InputSplit.html" title="interface in org.apache.hadoop.mapred"><CODE>InputSplit</CODE></A> to future operations.</TD>
149</TR>
150<TR BGCOLOR="white" CLASS="TableRowColor">
151<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
152<CODE>&nbsp;<A HREF="../../../../org/apache/hadoop/io/Text.html" title="class in org.apache.hadoop.io">Text</A></CODE></FONT></TD>
153<TD><CODE><B><A HREF="../../../../org/apache/hadoop/mapred/SequenceFileAsTextRecordReader.html#createKey()">createKey</A></B>()</CODE>
154
155<BR>
156&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Create an object of the appropriate type to be used as a key.</TD>
157</TR>
158<TR BGCOLOR="white" CLASS="TableRowColor">
159<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
160<CODE>&nbsp;<A HREF="../../../../org/apache/hadoop/io/Text.html" title="class in org.apache.hadoop.io">Text</A></CODE></FONT></TD>
161<TD><CODE><B><A HREF="../../../../org/apache/hadoop/mapred/SequenceFileAsTextRecordReader.html#createValue()">createValue</A></B>()</CODE>
162
163<BR>
164&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Create an object of the appropriate type to be used as a value.</TD>
165</TR>
166<TR BGCOLOR="white" CLASS="TableRowColor">
167<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
168<CODE>&nbsp;long</CODE></FONT></TD>
169<TD><CODE><B><A HREF="../../../../org/apache/hadoop/mapred/SequenceFileAsTextRecordReader.html#getPos()">getPos</A></B>()</CODE>
170
171<BR>
172&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Returns the current position in the input.</TD>
173</TR>
174<TR BGCOLOR="white" CLASS="TableRowColor">
175<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
176<CODE>&nbsp;float</CODE></FONT></TD>
177<TD><CODE><B><A HREF="../../../../org/apache/hadoop/mapred/SequenceFileAsTextRecordReader.html#getProgress()">getProgress</A></B>()</CODE>
178
179<BR>
180&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;How much of the input has the <A HREF="../../../../org/apache/hadoop/mapred/RecordReader.html" title="interface in org.apache.hadoop.mapred"><CODE>RecordReader</CODE></A> consumed i.e.</TD>
181</TR>
182<TR BGCOLOR="white" CLASS="TableRowColor">
183<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
184<CODE>&nbsp;boolean</CODE></FONT></TD>
185<TD><CODE><B><A HREF="../../../../org/apache/hadoop/mapred/SequenceFileAsTextRecordReader.html#next(org.apache.hadoop.io.Text, org.apache.hadoop.io.Text)">next</A></B>(<A HREF="../../../../org/apache/hadoop/io/Text.html" title="class in org.apache.hadoop.io">Text</A>&nbsp;key,
186     <A HREF="../../../../org/apache/hadoop/io/Text.html" title="class in org.apache.hadoop.io">Text</A>&nbsp;value)</CODE>
187
188<BR>
189&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Read key/value pair in a line.</TD>
190</TR>
191</TABLE>
192&nbsp;<A NAME="methods_inherited_from_class_java.lang.Object"><!-- --></A>
193<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
194<TR BGCOLOR="#EEEEFF" CLASS="TableSubHeadingColor">
195<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>
196</TR>
197<TR BGCOLOR="white" CLASS="TableRowColor">
198<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>
199</TR>
200</TABLE>
201&nbsp;
202<P>
203
204<!-- ========= CONSTRUCTOR DETAIL ======== -->
205
206<A NAME="constructor_detail"><!-- --></A>
207<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
208<TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor">
209<TH ALIGN="left" COLSPAN="1"><FONT SIZE="+2">
210<B>Constructor Detail</B></FONT></TH>
211</TR>
212</TABLE>
213
214<A NAME="SequenceFileAsTextRecordReader(org.apache.hadoop.conf.Configuration, org.apache.hadoop.mapred.FileSplit)"><!-- --></A><H3>
215SequenceFileAsTextRecordReader</H3>
216<PRE>
217public <B>SequenceFileAsTextRecordReader</B>(<A HREF="../../../../org/apache/hadoop/conf/Configuration.html" title="class in org.apache.hadoop.conf">Configuration</A>&nbsp;conf,
218                                      <A HREF="../../../../org/apache/hadoop/mapred/FileSplit.html" title="class in org.apache.hadoop.mapred">FileSplit</A>&nbsp;split)
219                               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>
220<DL>
221<DL>
222
223<DT><B>Throws:</B>
224<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>
225</DL>
226
227<!-- ============ METHOD DETAIL ========== -->
228
229<A NAME="method_detail"><!-- --></A>
230<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
231<TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor">
232<TH ALIGN="left" COLSPAN="1"><FONT SIZE="+2">
233<B>Method Detail</B></FONT></TH>
234</TR>
235</TABLE>
236
237<A NAME="createKey()"><!-- --></A><H3>
238createKey</H3>
239<PRE>
240public <A HREF="../../../../org/apache/hadoop/io/Text.html" title="class in org.apache.hadoop.io">Text</A> <B>createKey</B>()</PRE>
241<DL>
242<DD><B>Description copied from interface: <CODE><A HREF="../../../../org/apache/hadoop/mapred/RecordReader.html#createKey()">RecordReader</A></CODE></B></DD>
243<DD>Create an object of the appropriate type to be used as a key.
244<P>
245<DD><DL>
246<DT><B>Specified by:</B><DD><CODE><A HREF="../../../../org/apache/hadoop/mapred/RecordReader.html#createKey()">createKey</A></CODE> in interface <CODE><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></DL>
247</DD>
248<DD><DL>
249
250<DT><B>Returns:</B><DD>a new key object.</DL>
251</DD>
252</DL>
253<HR>
254
255<A NAME="createValue()"><!-- --></A><H3>
256createValue</H3>
257<PRE>
258public <A HREF="../../../../org/apache/hadoop/io/Text.html" title="class in org.apache.hadoop.io">Text</A> <B>createValue</B>()</PRE>
259<DL>
260<DD><B>Description copied from interface: <CODE><A HREF="../../../../org/apache/hadoop/mapred/RecordReader.html#createValue()">RecordReader</A></CODE></B></DD>
261<DD>Create an object of the appropriate type to be used as a value.
262<P>
263<DD><DL>
264<DT><B>Specified by:</B><DD><CODE><A HREF="../../../../org/apache/hadoop/mapred/RecordReader.html#createValue()">createValue</A></CODE> in interface <CODE><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></DL>
265</DD>
266<DD><DL>
267
268<DT><B>Returns:</B><DD>a new value object.</DL>
269</DD>
270</DL>
271<HR>
272
273<A NAME="next(org.apache.hadoop.io.Text, org.apache.hadoop.io.Text)"><!-- --></A><H3>
274next</H3>
275<PRE>
276public boolean <B>next</B>(<A HREF="../../../../org/apache/hadoop/io/Text.html" title="class in org.apache.hadoop.io">Text</A>&nbsp;key,
277                    <A HREF="../../../../org/apache/hadoop/io/Text.html" title="class in org.apache.hadoop.io">Text</A>&nbsp;value)
278             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>
279<DL>
280<DD>Read key/value pair in a line.
281<P>
282<DD><DL>
283<DT><B>Specified by:</B><DD><CODE><A HREF="../../../../org/apache/hadoop/mapred/RecordReader.html#next(K, V)">next</A></CODE> in interface <CODE><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></DL>
284</DD>
285<DD><DL>
286<DT><B>Parameters:</B><DD><CODE>key</CODE> - the key to read data into<DD><CODE>value</CODE> - the value to read data into
287<DT><B>Returns:</B><DD>true iff a key/value was read, false if at EOF
288<DT><B>Throws:</B>
289<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>
290</DD>
291</DL>
292<HR>
293
294<A NAME="getProgress()"><!-- --></A><H3>
295getProgress</H3>
296<PRE>
297public float <B>getProgress</B>()
298                  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>
299<DL>
300<DD><B>Description copied from interface: <CODE><A HREF="../../../../org/apache/hadoop/mapred/RecordReader.html#getProgress()">RecordReader</A></CODE></B></DD>
301<DD>How much of the input has the <A HREF="../../../../org/apache/hadoop/mapred/RecordReader.html" title="interface in org.apache.hadoop.mapred"><CODE>RecordReader</CODE></A> consumed i.e.
302 has been processed by?
303<P>
304<DD><DL>
305<DT><B>Specified by:</B><DD><CODE><A HREF="../../../../org/apache/hadoop/mapred/RecordReader.html#getProgress()">getProgress</A></CODE> in interface <CODE><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></DL>
306</DD>
307<DD><DL>
308
309<DT><B>Returns:</B><DD>progress from <code>0.0</code> to <code>1.0</code>.
310<DT><B>Throws:</B>
311<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>
312</DD>
313</DL>
314<HR>
315
316<A NAME="getPos()"><!-- --></A><H3>
317getPos</H3>
318<PRE>
319public long <B>getPos</B>()
320            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>
321<DL>
322<DD><B>Description copied from interface: <CODE><A HREF="../../../../org/apache/hadoop/mapred/RecordReader.html#getPos()">RecordReader</A></CODE></B></DD>
323<DD>Returns the current position in the input.
324<P>
325<DD><DL>
326<DT><B>Specified by:</B><DD><CODE><A HREF="../../../../org/apache/hadoop/mapred/RecordReader.html#getPos()">getPos</A></CODE> in interface <CODE><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></DL>
327</DD>
328<DD><DL>
329
330<DT><B>Returns:</B><DD>the current position in the input.
331<DT><B>Throws:</B>
332<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>
333</DD>
334</DL>
335<HR>
336
337<A NAME="close()"><!-- --></A><H3>
338close</H3>
339<PRE>
340public void <B>close</B>()
341           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>
342<DL>
343<DD><B>Description copied from interface: <CODE><A HREF="../../../../org/apache/hadoop/mapred/RecordReader.html#close()">RecordReader</A></CODE></B></DD>
344<DD>Close this <A HREF="../../../../org/apache/hadoop/mapred/InputSplit.html" title="interface in org.apache.hadoop.mapred"><CODE>InputSplit</CODE></A> to future operations.
345<P>
346<DD><DL>
347<DT><B>Specified by:</B><DD><CODE><A HREF="../../../../org/apache/hadoop/mapred/RecordReader.html#close()">close</A></CODE> in interface <CODE><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></DL>
348</DD>
349<DD><DL>
350
351<DT><B>Throws:</B>
352<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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