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| 89 | <H2> |
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| 90 | <FONT SIZE="-1"> |
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| 91 | org.apache.hadoop.mapred.lib</FONT> |
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| 92 | <BR> |
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| 93 | Class CombineFileRecordReader<K,V></H2> |
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| 94 | <PRE> |
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| 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> |
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| 96 | <IMG SRC="../../../../../resources/inherit.gif" ALT="extended by "><B>org.apache.hadoop.mapred.lib.CombineFileRecordReader<K,V></B> |
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| 97 | </PRE> |
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| 98 | <DL> |
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| 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><K,V></DD> |
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| 100 | </DL> |
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| 101 | <HR> |
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| 102 | <DL> |
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| 103 | <DT><PRE>public class <B>CombineFileRecordReader<K,V></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><K,V></DL> |
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| 104 | </PRE> |
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| 105 | |
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| 106 | <P> |
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| 107 | A generic RecordReader that can hand out different recordReaders |
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| 108 | for each chunk in a <A HREF="../../../../../org/apache/hadoop/mapred/lib/CombineFileSplit.html" title="class in org.apache.hadoop.mapred.lib"><CODE>CombineFileSplit</CODE></A>. |
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| 109 | A CombineFileSplit can combine data chunks from multiple files. |
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| 110 | This class allows using different RecordReaders for processing |
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| 111 | these data chunks from different files. |
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| 112 | <P> |
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| 113 | |
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| 114 | <P> |
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| 115 | <DL> |
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| 116 | <DT><B>See Also:</B><DD><A HREF="../../../../../org/apache/hadoop/mapred/lib/CombineFileSplit.html" title="class in org.apache.hadoop.mapred.lib"><CODE>CombineFileSplit</CODE></A></DL> |
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| 117 | <HR> |
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| 118 | |
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| 119 | <P> |
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| 120 | <!-- =========== FIELD SUMMARY =========== --> |
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| 121 | |
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| 127 | </TR> |
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| 128 | <TR BGCOLOR="white" CLASS="TableRowColor"> |
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| 129 | <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
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| 130 | <CODE>protected <A HREF="../../../../../org/apache/hadoop/mapred/RecordReader.html" title="interface in org.apache.hadoop.mapred">RecordReader</A><<A HREF="../../../../../org/apache/hadoop/mapred/lib/CombineFileRecordReader.html" title="type parameter in CombineFileRecordReader">K</A>,<A HREF="../../../../../org/apache/hadoop/mapred/lib/CombineFileRecordReader.html" title="type parameter in CombineFileRecordReader">V</A>></CODE></FONT></TD> |
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| 131 | <TD><CODE><B><A HREF="../../../../../org/apache/hadoop/mapred/lib/CombineFileRecordReader.html#curReader">curReader</A></B></CODE> |
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| 132 | |
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| 133 | <BR> |
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| 134 | </TD> |
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| 135 | </TR> |
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| 136 | <TR BGCOLOR="white" CLASS="TableRowColor"> |
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| 137 | <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
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| 138 | <CODE>protected <A HREF="../../../../../org/apache/hadoop/fs/FileSystem.html" title="class in org.apache.hadoop.fs">FileSystem</A></CODE></FONT></TD> |
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| 139 | <TD><CODE><B><A HREF="../../../../../org/apache/hadoop/mapred/lib/CombineFileRecordReader.html#fs">fs</A></B></CODE> |
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| 140 | |
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| 141 | <BR> |
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| 142 | </TD> |
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| 143 | </TR> |
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| 144 | <TR BGCOLOR="white" CLASS="TableRowColor"> |
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| 145 | <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
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| 146 | <CODE>protected int</CODE></FONT></TD> |
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| 147 | <TD><CODE><B><A HREF="../../../../../org/apache/hadoop/mapred/lib/CombineFileRecordReader.html#idx">idx</A></B></CODE> |
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| 148 | |
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| 149 | <BR> |
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| 150 | </TD> |
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| 151 | </TR> |
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| 152 | <TR BGCOLOR="white" CLASS="TableRowColor"> |
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| 153 | <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
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| 154 | <CODE>protected <A HREF="../../../../../org/apache/hadoop/mapred/JobConf.html" title="class in org.apache.hadoop.mapred">JobConf</A></CODE></FONT></TD> |
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| 155 | <TD><CODE><B><A HREF="../../../../../org/apache/hadoop/mapred/lib/CombineFileRecordReader.html#jc">jc</A></B></CODE> |
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| 156 | |
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| 157 | <BR> |
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| 158 | </TD> |
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| 159 | </TR> |
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| 160 | <TR BGCOLOR="white" CLASS="TableRowColor"> |
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| 161 | <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
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| 162 | <CODE>protected long</CODE></FONT></TD> |
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| 163 | <TD><CODE><B><A HREF="../../../../../org/apache/hadoop/mapred/lib/CombineFileRecordReader.html#progress">progress</A></B></CODE> |
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| 164 | |
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| 165 | <BR> |
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| 166 | </TD> |
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| 167 | </TR> |
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| 168 | <TR BGCOLOR="white" CLASS="TableRowColor"> |
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| 169 | <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
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| 170 | <CODE>protected <A HREF="../../../../../org/apache/hadoop/mapred/Reporter.html" title="interface in org.apache.hadoop.mapred">Reporter</A></CODE></FONT></TD> |
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| 171 | <TD><CODE><B><A HREF="../../../../../org/apache/hadoop/mapred/lib/CombineFileRecordReader.html#reporter">reporter</A></B></CODE> |
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| 172 | |
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| 173 | <BR> |
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| 174 | </TD> |
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| 175 | </TR> |
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| 176 | <TR BGCOLOR="white" CLASS="TableRowColor"> |
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| 177 | <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
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| 178 | <CODE>protected <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><<A HREF="../../../../../org/apache/hadoop/mapred/RecordReader.html" title="interface in org.apache.hadoop.mapred">RecordReader</A><<A HREF="../../../../../org/apache/hadoop/mapred/lib/CombineFileRecordReader.html" title="type parameter in CombineFileRecordReader">K</A>,<A HREF="../../../../../org/apache/hadoop/mapred/lib/CombineFileRecordReader.html" title="type parameter in CombineFileRecordReader">V</A>>></CODE></FONT></TD> |
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| 179 | <TD><CODE><B><A HREF="../../../../../org/apache/hadoop/mapred/lib/CombineFileRecordReader.html#rrClass">rrClass</A></B></CODE> |
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| 180 | |
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| 181 | <BR> |
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| 182 | </TD> |
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| 183 | </TR> |
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| 184 | <TR BGCOLOR="white" CLASS="TableRowColor"> |
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| 185 | <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
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| 186 | <CODE>protected <A HREF="http://java.sun.com/javase/6/docs/api/java/lang/reflect/Constructor.html?is-external=true" title="class or interface in java.lang.reflect">Constructor</A><<A HREF="../../../../../org/apache/hadoop/mapred/RecordReader.html" title="interface in org.apache.hadoop.mapred">RecordReader</A><<A HREF="../../../../../org/apache/hadoop/mapred/lib/CombineFileRecordReader.html" title="type parameter in CombineFileRecordReader">K</A>,<A HREF="../../../../../org/apache/hadoop/mapred/lib/CombineFileRecordReader.html" title="type parameter in CombineFileRecordReader">V</A>>></CODE></FONT></TD> |
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| 187 | <TD><CODE><B><A HREF="../../../../../org/apache/hadoop/mapred/lib/CombineFileRecordReader.html#rrConstructor">rrConstructor</A></B></CODE> |
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| 188 | |
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| 189 | <BR> |
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| 190 | </TD> |
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| 191 | </TR> |
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| 192 | <TR BGCOLOR="white" CLASS="TableRowColor"> |
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| 193 | <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
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| 194 | <CODE>protected <A HREF="../../../../../org/apache/hadoop/mapred/lib/CombineFileSplit.html" title="class in org.apache.hadoop.mapred.lib">CombineFileSplit</A></CODE></FONT></TD> |
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| 195 | <TD><CODE><B><A HREF="../../../../../org/apache/hadoop/mapred/lib/CombineFileRecordReader.html#split">split</A></B></CODE> |
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| 196 | |
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| 197 | <BR> |
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| 198 | </TD> |
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| 199 | </TR> |
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| 200 | </TABLE> |
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| 201 | |
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| 202 | <!-- ======== CONSTRUCTOR SUMMARY ======== --> |
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| 203 | |
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| 204 | <A NAME="constructor_summary"><!-- --></A> |
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| 205 | <TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""> |
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| 206 | <TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor"> |
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| 207 | <TH ALIGN="left" COLSPAN="2"><FONT SIZE="+2"> |
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| 208 | <B>Constructor Summary</B></FONT></TH> |
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| 209 | </TR> |
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| 210 | <TR BGCOLOR="white" CLASS="TableRowColor"> |
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| 211 | <TD><CODE><B><A HREF="../../../../../org/apache/hadoop/mapred/lib/CombineFileRecordReader.html#CombineFileRecordReader(org.apache.hadoop.mapred.JobConf, org.apache.hadoop.mapred.lib.CombineFileSplit, org.apache.hadoop.mapred.Reporter, java.lang.Class)">CombineFileRecordReader</A></B>(<A HREF="../../../../../org/apache/hadoop/mapred/JobConf.html" title="class in org.apache.hadoop.mapred">JobConf</A> job, |
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| 212 | <A HREF="../../../../../org/apache/hadoop/mapred/lib/CombineFileSplit.html" title="class in org.apache.hadoop.mapred.lib">CombineFileSplit</A> split, |
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| 213 | <A HREF="../../../../../org/apache/hadoop/mapred/Reporter.html" title="interface in org.apache.hadoop.mapred">Reporter</A> reporter, |
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| 214 | <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><<A HREF="../../../../../org/apache/hadoop/mapred/RecordReader.html" title="interface in org.apache.hadoop.mapred">RecordReader</A><<A HREF="../../../../../org/apache/hadoop/mapred/lib/CombineFileRecordReader.html" title="type parameter in CombineFileRecordReader">K</A>,<A HREF="../../../../../org/apache/hadoop/mapred/lib/CombineFileRecordReader.html" title="type parameter in CombineFileRecordReader">V</A>>> rrClass)</CODE> |
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| 215 | |
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| 216 | <BR> |
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| 217 | A generic RecordReader that can hand out different recordReaders |
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| 218 | for each chunk in the CombineFileSplit.</TD> |
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| 219 | </TR> |
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| 220 | </TABLE> |
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| 221 | |
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| 222 | <!-- ========== METHOD SUMMARY =========== --> |
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| 223 | |
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| 224 | <A NAME="method_summary"><!-- --></A> |
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| 225 | <TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""> |
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| 226 | <TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor"> |
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| 227 | <TH ALIGN="left" COLSPAN="2"><FONT SIZE="+2"> |
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| 228 | <B>Method Summary</B></FONT></TH> |
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| 229 | </TR> |
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| 230 | <TR BGCOLOR="white" CLASS="TableRowColor"> |
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| 231 | <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
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| 232 | <CODE> void</CODE></FONT></TD> |
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| 233 | <TD><CODE><B><A HREF="../../../../../org/apache/hadoop/mapred/lib/CombineFileRecordReader.html#close()">close</A></B>()</CODE> |
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| 234 | |
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| 235 | <BR> |
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| 236 | 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> |
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| 237 | </TR> |
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| 238 | <TR BGCOLOR="white" CLASS="TableRowColor"> |
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| 239 | <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
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| 240 | <CODE> <A HREF="../../../../../org/apache/hadoop/mapred/lib/CombineFileRecordReader.html" title="type parameter in CombineFileRecordReader">K</A></CODE></FONT></TD> |
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| 241 | <TD><CODE><B><A HREF="../../../../../org/apache/hadoop/mapred/lib/CombineFileRecordReader.html#createKey()">createKey</A></B>()</CODE> |
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| 242 | |
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| 243 | <BR> |
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| 244 | Create an object of the appropriate type to be used as a key.</TD> |
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| 245 | </TR> |
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| 246 | <TR BGCOLOR="white" CLASS="TableRowColor"> |
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| 247 | <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
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| 248 | <CODE> <A HREF="../../../../../org/apache/hadoop/mapred/lib/CombineFileRecordReader.html" title="type parameter in CombineFileRecordReader">V</A></CODE></FONT></TD> |
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| 249 | <TD><CODE><B><A HREF="../../../../../org/apache/hadoop/mapred/lib/CombineFileRecordReader.html#createValue()">createValue</A></B>()</CODE> |
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| 250 | |
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| 251 | <BR> |
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| 252 | Create an object of the appropriate type to be used as a value.</TD> |
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| 253 | </TR> |
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| 254 | <TR BGCOLOR="white" CLASS="TableRowColor"> |
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| 255 | <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
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| 256 | <CODE> long</CODE></FONT></TD> |
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| 257 | <TD><CODE><B><A HREF="../../../../../org/apache/hadoop/mapred/lib/CombineFileRecordReader.html#getPos()">getPos</A></B>()</CODE> |
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| 258 | |
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| 259 | <BR> |
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| 260 | return the amount of data processed</TD> |
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| 261 | </TR> |
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| 262 | <TR BGCOLOR="white" CLASS="TableRowColor"> |
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| 263 | <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
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| 264 | <CODE> float</CODE></FONT></TD> |
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| 265 | <TD><CODE><B><A HREF="../../../../../org/apache/hadoop/mapred/lib/CombineFileRecordReader.html#getProgress()">getProgress</A></B>()</CODE> |
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| 266 | |
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| 267 | <BR> |
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| 268 | return progress based on the amount of data processed so far.</TD> |
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| 269 | </TR> |
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| 270 | <TR BGCOLOR="white" CLASS="TableRowColor"> |
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| 271 | <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
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| 272 | <CODE>protected boolean</CODE></FONT></TD> |
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| 273 | <TD><CODE><B><A HREF="../../../../../org/apache/hadoop/mapred/lib/CombineFileRecordReader.html#initNextRecordReader()">initNextRecordReader</A></B>()</CODE> |
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| 274 | |
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| 275 | <BR> |
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| 276 | Get the record reader for the next chunk in this CombineFileSplit.</TD> |
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| 277 | </TR> |
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| 278 | <TR BGCOLOR="white" CLASS="TableRowColor"> |
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| 279 | <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
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| 280 | <CODE> boolean</CODE></FONT></TD> |
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| 281 | <TD><CODE><B><A HREF="../../../../../org/apache/hadoop/mapred/lib/CombineFileRecordReader.html#next(K, V)">next</A></B>(<A HREF="../../../../../org/apache/hadoop/mapred/lib/CombineFileRecordReader.html" title="type parameter in CombineFileRecordReader">K</A> key, |
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| 282 | <A HREF="../../../../../org/apache/hadoop/mapred/lib/CombineFileRecordReader.html" title="type parameter in CombineFileRecordReader">V</A> value)</CODE> |
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| 283 | |
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| 284 | <BR> |
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| 285 | Reads the next key/value pair from the input for processing.</TD> |
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| 286 | </TR> |
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| 287 | </TABLE> |
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| 288 | <A NAME="methods_inherited_from_class_java.lang.Object"><!-- --></A> |
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| 289 | <TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""> |
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| 290 | <TR BGCOLOR="#EEEEFF" CLASS="TableSubHeadingColor"> |
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| 291 | <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> |
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| 292 | </TR> |
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| 293 | <TR BGCOLOR="white" CLASS="TableRowColor"> |
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| 294 | <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> |
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| 295 | </TR> |
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| 296 | </TABLE> |
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| 297 | |
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| 298 | <P> |
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| 299 | |
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| 300 | <!-- ============ FIELD DETAIL =========== --> |
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| 301 | |
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| 302 | <A NAME="field_detail"><!-- --></A> |
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| 303 | <TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""> |
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| 304 | <TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor"> |
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| 305 | <TH ALIGN="left" COLSPAN="1"><FONT SIZE="+2"> |
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| 306 | <B>Field Detail</B></FONT></TH> |
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| 307 | </TR> |
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| 308 | </TABLE> |
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| 309 | |
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| 310 | <A NAME="split"><!-- --></A><H3> |
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| 311 | split</H3> |
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| 312 | <PRE> |
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| 313 | protected <A HREF="../../../../../org/apache/hadoop/mapred/lib/CombineFileSplit.html" title="class in org.apache.hadoop.mapred.lib">CombineFileSplit</A> <B>split</B></PRE> |
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| 314 | <DL> |
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| 315 | <DL> |
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| 316 | </DL> |
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| 317 | </DL> |
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| 318 | <HR> |
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| 319 | |
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| 320 | <A NAME="jc"><!-- --></A><H3> |
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| 321 | jc</H3> |
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| 322 | <PRE> |
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| 323 | protected <A HREF="../../../../../org/apache/hadoop/mapred/JobConf.html" title="class in org.apache.hadoop.mapred">JobConf</A> <B>jc</B></PRE> |
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| 324 | <DL> |
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| 325 | <DL> |
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| 326 | </DL> |
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| 327 | </DL> |
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| 328 | <HR> |
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| 329 | |
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| 330 | <A NAME="reporter"><!-- --></A><H3> |
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| 331 | reporter</H3> |
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| 332 | <PRE> |
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| 333 | protected <A HREF="../../../../../org/apache/hadoop/mapred/Reporter.html" title="interface in org.apache.hadoop.mapred">Reporter</A> <B>reporter</B></PRE> |
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| 334 | <DL> |
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| 335 | <DL> |
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| 336 | </DL> |
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| 337 | </DL> |
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| 338 | <HR> |
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| 339 | |
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| 340 | <A NAME="rrClass"><!-- --></A><H3> |
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| 341 | rrClass</H3> |
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| 342 | <PRE> |
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| 343 | protected <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><<A HREF="../../../../../org/apache/hadoop/mapred/RecordReader.html" title="interface in org.apache.hadoop.mapred">RecordReader</A><<A HREF="../../../../../org/apache/hadoop/mapred/lib/CombineFileRecordReader.html" title="type parameter in CombineFileRecordReader">K</A>,<A HREF="../../../../../org/apache/hadoop/mapred/lib/CombineFileRecordReader.html" title="type parameter in CombineFileRecordReader">V</A>>> <B>rrClass</B></PRE> |
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| 344 | <DL> |
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| 345 | <DL> |
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| 346 | </DL> |
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| 347 | </DL> |
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| 348 | <HR> |
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| 349 | |
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| 350 | <A NAME="rrConstructor"><!-- --></A><H3> |
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| 351 | rrConstructor</H3> |
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| 352 | <PRE> |
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| 353 | protected <A HREF="http://java.sun.com/javase/6/docs/api/java/lang/reflect/Constructor.html?is-external=true" title="class or interface in java.lang.reflect">Constructor</A><<A HREF="../../../../../org/apache/hadoop/mapred/RecordReader.html" title="interface in org.apache.hadoop.mapred">RecordReader</A><<A HREF="../../../../../org/apache/hadoop/mapred/lib/CombineFileRecordReader.html" title="type parameter in CombineFileRecordReader">K</A>,<A HREF="../../../../../org/apache/hadoop/mapred/lib/CombineFileRecordReader.html" title="type parameter in CombineFileRecordReader">V</A>>> <B>rrConstructor</B></PRE> |
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| 354 | <DL> |
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| 355 | <DL> |
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| 356 | </DL> |
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| 357 | </DL> |
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| 358 | <HR> |
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| 359 | |
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| 360 | <A NAME="fs"><!-- --></A><H3> |
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| 361 | fs</H3> |
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| 362 | <PRE> |
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| 363 | protected <A HREF="../../../../../org/apache/hadoop/fs/FileSystem.html" title="class in org.apache.hadoop.fs">FileSystem</A> <B>fs</B></PRE> |
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| 364 | <DL> |
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| 365 | <DL> |
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| 366 | </DL> |
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| 367 | </DL> |
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| 368 | <HR> |
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| 369 | |
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| 370 | <A NAME="idx"><!-- --></A><H3> |
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| 371 | idx</H3> |
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| 372 | <PRE> |
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| 373 | protected int <B>idx</B></PRE> |
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| 374 | <DL> |
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| 375 | <DL> |
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| 376 | </DL> |
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| 377 | </DL> |
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| 378 | <HR> |
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| 379 | |
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| 380 | <A NAME="progress"><!-- --></A><H3> |
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| 381 | progress</H3> |
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| 382 | <PRE> |
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| 383 | protected long <B>progress</B></PRE> |
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| 384 | <DL> |
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| 385 | <DL> |
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| 386 | </DL> |
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| 387 | </DL> |
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| 388 | <HR> |
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| 389 | |
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| 390 | <A NAME="curReader"><!-- --></A><H3> |
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| 391 | curReader</H3> |
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| 392 | <PRE> |
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| 393 | protected <A HREF="../../../../../org/apache/hadoop/mapred/RecordReader.html" title="interface in org.apache.hadoop.mapred">RecordReader</A><<A HREF="../../../../../org/apache/hadoop/mapred/lib/CombineFileRecordReader.html" title="type parameter in CombineFileRecordReader">K</A>,<A HREF="../../../../../org/apache/hadoop/mapred/lib/CombineFileRecordReader.html" title="type parameter in CombineFileRecordReader">V</A>> <B>curReader</B></PRE> |
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| 394 | <DL> |
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| 395 | <DL> |
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| 396 | </DL> |
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| 397 | </DL> |
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| 398 | |
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| 399 | <!-- ========= CONSTRUCTOR DETAIL ======== --> |
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| 400 | |
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| 401 | <A NAME="constructor_detail"><!-- --></A> |
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| 402 | <TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""> |
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| 403 | <TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor"> |
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| 404 | <TH ALIGN="left" COLSPAN="1"><FONT SIZE="+2"> |
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| 405 | <B>Constructor Detail</B></FONT></TH> |
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| 406 | </TR> |
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| 407 | </TABLE> |
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| 408 | |
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| 409 | <A NAME="CombineFileRecordReader(org.apache.hadoop.mapred.JobConf, org.apache.hadoop.mapred.lib.CombineFileSplit, org.apache.hadoop.mapred.Reporter, java.lang.Class)"><!-- --></A><H3> |
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| 410 | CombineFileRecordReader</H3> |
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| 411 | <PRE> |
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| 412 | public <B>CombineFileRecordReader</B>(<A HREF="../../../../../org/apache/hadoop/mapred/JobConf.html" title="class in org.apache.hadoop.mapred">JobConf</A> job, |
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| 413 | <A HREF="../../../../../org/apache/hadoop/mapred/lib/CombineFileSplit.html" title="class in org.apache.hadoop.mapred.lib">CombineFileSplit</A> split, |
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| 414 | <A HREF="../../../../../org/apache/hadoop/mapred/Reporter.html" title="interface in org.apache.hadoop.mapred">Reporter</A> reporter, |
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| 415 | <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><<A HREF="../../../../../org/apache/hadoop/mapred/RecordReader.html" title="interface in org.apache.hadoop.mapred">RecordReader</A><<A HREF="../../../../../org/apache/hadoop/mapred/lib/CombineFileRecordReader.html" title="type parameter in CombineFileRecordReader">K</A>,<A HREF="../../../../../org/apache/hadoop/mapred/lib/CombineFileRecordReader.html" title="type parameter in CombineFileRecordReader">V</A>>> rrClass) |
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| 416 | 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> |
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| 417 | <DL> |
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| 418 | <DD>A generic RecordReader that can hand out different recordReaders |
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| 419 | for each chunk in the CombineFileSplit. |
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| 420 | <P> |
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| 421 | <DL> |
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| 422 | |
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| 423 | <DT><B>Throws:</B> |
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| 424 | <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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| 425 | </DL> |
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| 426 | |
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| 427 | <!-- ============ METHOD DETAIL ========== --> |
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| 428 | |
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| 429 | <A NAME="method_detail"><!-- --></A> |
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| 430 | <TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""> |
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| 431 | <TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor"> |
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| 432 | <TH ALIGN="left" COLSPAN="1"><FONT SIZE="+2"> |
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| 433 | <B>Method Detail</B></FONT></TH> |
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| 434 | </TR> |
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| 435 | </TABLE> |
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| 436 | |
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| 437 | <A NAME="next(java.lang.Object,java.lang.Object)"><!-- --></A><A NAME="next(K, V)"><!-- --></A><H3> |
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| 438 | next</H3> |
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| 439 | <PRE> |
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| 440 | public boolean <B>next</B>(<A HREF="../../../../../org/apache/hadoop/mapred/lib/CombineFileRecordReader.html" title="type parameter in CombineFileRecordReader">K</A> key, |
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| 441 | <A HREF="../../../../../org/apache/hadoop/mapred/lib/CombineFileRecordReader.html" title="type parameter in CombineFileRecordReader">V</A> value) |
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| 442 | 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> |
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| 443 | <DL> |
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| 444 | <DD><B>Description copied from interface: <CODE><A HREF="../../../../../org/apache/hadoop/mapred/RecordReader.html#next(K, V)">RecordReader</A></CODE></B></DD> |
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| 445 | <DD>Reads the next key/value pair from the input for processing. |
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| 446 | <P> |
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| 447 | <DD><DL> |
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| 448 | <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><<A HREF="../../../../../org/apache/hadoop/mapred/lib/CombineFileRecordReader.html" title="type parameter in CombineFileRecordReader">K</A>,<A HREF="../../../../../org/apache/hadoop/mapred/lib/CombineFileRecordReader.html" title="type parameter in CombineFileRecordReader">V</A>></CODE></DL> |
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| 449 | </DD> |
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| 450 | <DD><DL> |
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| 451 | <DT><B>Parameters:</B><DD><CODE>key</CODE> - the key to read data into<DD><CODE>value</CODE> - the value to read data into |
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| 452 | <DT><B>Returns:</B><DD>true iff a key/value was read, false if at EOF |
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| 453 | <DT><B>Throws:</B> |
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| 454 | <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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| 455 | </DD> |
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| 456 | </DL> |
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| 457 | <HR> |
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| 458 | |
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| 459 | <A NAME="createKey()"><!-- --></A><H3> |
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| 460 | createKey</H3> |
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| 461 | <PRE> |
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| 462 | public <A HREF="../../../../../org/apache/hadoop/mapred/lib/CombineFileRecordReader.html" title="type parameter in CombineFileRecordReader">K</A> <B>createKey</B>()</PRE> |
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| 463 | <DL> |
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| 464 | <DD><B>Description copied from interface: <CODE><A HREF="../../../../../org/apache/hadoop/mapred/RecordReader.html#createKey()">RecordReader</A></CODE></B></DD> |
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| 465 | <DD>Create an object of the appropriate type to be used as a key. |
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| 466 | <P> |
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| 467 | <DD><DL> |
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| 468 | <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><<A HREF="../../../../../org/apache/hadoop/mapred/lib/CombineFileRecordReader.html" title="type parameter in CombineFileRecordReader">K</A>,<A HREF="../../../../../org/apache/hadoop/mapred/lib/CombineFileRecordReader.html" title="type parameter in CombineFileRecordReader">V</A>></CODE></DL> |
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| 469 | </DD> |
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| 470 | <DD><DL> |
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| 471 | |
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| 472 | <DT><B>Returns:</B><DD>a new key object.</DL> |
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| 473 | </DD> |
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| 474 | </DL> |
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| 475 | <HR> |
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| 476 | |
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| 477 | <A NAME="createValue()"><!-- --></A><H3> |
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| 478 | createValue</H3> |
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| 479 | <PRE> |
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| 480 | public <A HREF="../../../../../org/apache/hadoop/mapred/lib/CombineFileRecordReader.html" title="type parameter in CombineFileRecordReader">V</A> <B>createValue</B>()</PRE> |
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| 481 | <DL> |
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| 482 | <DD><B>Description copied from interface: <CODE><A HREF="../../../../../org/apache/hadoop/mapred/RecordReader.html#createValue()">RecordReader</A></CODE></B></DD> |
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| 483 | <DD>Create an object of the appropriate type to be used as a value. |
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| 484 | <P> |
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| 485 | <DD><DL> |
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| 486 | <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><<A HREF="../../../../../org/apache/hadoop/mapred/lib/CombineFileRecordReader.html" title="type parameter in CombineFileRecordReader">K</A>,<A HREF="../../../../../org/apache/hadoop/mapred/lib/CombineFileRecordReader.html" title="type parameter in CombineFileRecordReader">V</A>></CODE></DL> |
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| 487 | </DD> |
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| 488 | <DD><DL> |
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| 489 | |
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| 490 | <DT><B>Returns:</B><DD>a new value object.</DL> |
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| 491 | </DD> |
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| 492 | </DL> |
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| 493 | <HR> |
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| 494 | |
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| 495 | <A NAME="getPos()"><!-- --></A><H3> |
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| 496 | getPos</H3> |
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| 497 | <PRE> |
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| 498 | public long <B>getPos</B>() |
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| 499 | 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> |
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| 500 | <DL> |
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| 501 | <DD>return the amount of data processed |
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| 502 | <P> |
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| 503 | <DD><DL> |
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| 504 | <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><<A HREF="../../../../../org/apache/hadoop/mapred/lib/CombineFileRecordReader.html" title="type parameter in CombineFileRecordReader">K</A>,<A HREF="../../../../../org/apache/hadoop/mapred/lib/CombineFileRecordReader.html" title="type parameter in CombineFileRecordReader">V</A>></CODE></DL> |
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| 505 | </DD> |
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| 506 | <DD><DL> |
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| 507 | |
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| 508 | <DT><B>Returns:</B><DD>the current position in the input. |
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| 509 | <DT><B>Throws:</B> |
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| 510 | <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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| 511 | </DD> |
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| 512 | </DL> |
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| 513 | <HR> |
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| 514 | |
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| 515 | <A NAME="close()"><!-- --></A><H3> |
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| 516 | close</H3> |
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| 517 | <PRE> |
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| 518 | public void <B>close</B>() |
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| 519 | 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> |
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| 520 | <DL> |
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| 521 | <DD><B>Description copied from interface: <CODE><A HREF="../../../../../org/apache/hadoop/mapred/RecordReader.html#close()">RecordReader</A></CODE></B></DD> |
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| 522 | <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. |
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| 523 | <P> |
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| 524 | <DD><DL> |
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| 525 | <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><<A HREF="../../../../../org/apache/hadoop/mapred/lib/CombineFileRecordReader.html" title="type parameter in CombineFileRecordReader">K</A>,<A HREF="../../../../../org/apache/hadoop/mapred/lib/CombineFileRecordReader.html" title="type parameter in CombineFileRecordReader">V</A>></CODE></DL> |
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| 526 | </DD> |
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| 527 | <DD><DL> |
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| 528 | |
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| 529 | <DT><B>Throws:</B> |
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| 530 | <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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| 531 | </DD> |
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| 532 | </DL> |
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| 533 | <HR> |
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| 534 | |
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| 535 | <A NAME="getProgress()"><!-- --></A><H3> |
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| 536 | getProgress</H3> |
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| 537 | <PRE> |
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| 538 | public float <B>getProgress</B>() |
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| 539 | 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> |
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| 540 | <DL> |
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| 541 | <DD>return progress based on the amount of data processed so far. |
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| 542 | <P> |
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| 543 | <DD><DL> |
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| 544 | <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><<A HREF="../../../../../org/apache/hadoop/mapred/lib/CombineFileRecordReader.html" title="type parameter in CombineFileRecordReader">K</A>,<A HREF="../../../../../org/apache/hadoop/mapred/lib/CombineFileRecordReader.html" title="type parameter in CombineFileRecordReader">V</A>></CODE></DL> |
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| 545 | </DD> |
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| 546 | <DD><DL> |
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| 547 | |
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| 548 | <DT><B>Returns:</B><DD>progress from <code>0.0</code> to <code>1.0</code>. |
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| 549 | <DT><B>Throws:</B> |
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| 550 | <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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| 551 | </DD> |
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| 552 | </DL> |
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| 553 | <HR> |
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| 554 | |
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| 555 | <A NAME="initNextRecordReader()"><!-- --></A><H3> |
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| 556 | initNextRecordReader</H3> |
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| 557 | <PRE> |
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| 558 | protected boolean <B>initNextRecordReader</B>() |
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| 559 | 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> |
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| 560 | <DL> |
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| 561 | <DD>Get the record reader for the next chunk in this CombineFileSplit. |
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| 562 | <P> |
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| 563 | <DD><DL> |
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| 564 | </DL> |
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| 565 | </DD> |
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| 566 | <DD><DL> |
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| 567 | |
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| 568 | <DT><B>Throws:</B> |
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| 569 | <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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| 570 | </DD> |
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| 571 | </DL> |
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| 572 | <!-- ========= END OF CLASS DATA ========= --> |
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| 573 | <HR> |
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| 574 | |
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| 575 | |
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| 576 | <!-- ======= START OF BOTTOM NAVBAR ====== --> |
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| 577 | <A NAME="navbar_bottom"><!-- --></A> |
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| 578 | <A HREF="#skip-navbar_bottom" title="Skip navigation links"></A> |
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| 579 | <TABLE BORDER="0" WIDTH="100%" CELLPADDING="1" CELLSPACING="0" SUMMARY=""> |
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| 580 | <TR> |
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| 581 | <TD COLSPAN=2 BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> |
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| 582 | <A NAME="navbar_bottom_firstrow"><!-- --></A> |
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| 583 | <TABLE BORDER="0" CELLPADDING="0" CELLSPACING="3" SUMMARY=""> |
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| 584 | <TR ALIGN="center" VALIGN="top"> |
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| 585 | <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="../../../../../overview-summary.html"><FONT CLASS="NavBarFont1"><B>Overview</B></FONT></A> </TD> |
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| 586 | <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="package-summary.html"><FONT CLASS="NavBarFont1"><B>Package</B></FONT></A> </TD> |
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| 587 | <TD BGCOLOR="#FFFFFF" CLASS="NavBarCell1Rev"> <FONT CLASS="NavBarFont1Rev"><B>Class</B></FONT> </TD> |
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| 588 | <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="class-use/CombineFileRecordReader.html"><FONT CLASS="NavBarFont1"><B>Use</B></FONT></A> </TD> |
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