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| 7 | Uses of Interface org.apache.hadoop.mapred.join.ComposableRecordReader (Hadoop 0.20.1 API) |
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| 41 | <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="../package-summary.html"><FONT CLASS="NavBarFont1"><B>Package</B></FONT></A> </TD> |
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| 42 | <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="../../../../../../org/apache/hadoop/mapred/join/ComposableRecordReader.html" title="interface in org.apache.hadoop.mapred.join"><FONT CLASS="NavBarFont1"><B>Class</B></FONT></A> </TD> |
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| 80 | |
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| 81 | <HR> |
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| 82 | <CENTER> |
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| 83 | <H2> |
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| 84 | <B>Uses of Interface<br>org.apache.hadoop.mapred.join.ComposableRecordReader</B></H2> |
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| 85 | </CENTER> |
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| 86 | |
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| 87 | <TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""> |
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| 88 | <TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor"> |
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| 89 | <TH ALIGN="left" COLSPAN="2"><FONT SIZE="+2"> |
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| 90 | Packages that use <A HREF="../../../../../../org/apache/hadoop/mapred/join/ComposableRecordReader.html" title="interface in org.apache.hadoop.mapred.join">ComposableRecordReader</A></FONT></TH> |
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| 91 | </TR> |
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| 92 | <TR BGCOLOR="white" CLASS="TableRowColor"> |
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| 93 | <TD><A HREF="#org.apache.hadoop.mapred.join"><B>org.apache.hadoop.mapred.join</B></A></TD> |
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| 94 | <TD>Given a set of sorted datasets keyed with the same class and yielding equal |
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| 95 | partitions, it is possible to effect a join of those datasets prior to the map. </TD> |
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| 96 | </TR> |
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| 97 | </TABLE> |
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| 98 | |
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| 99 | <P> |
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| 100 | <A NAME="org.apache.hadoop.mapred.join"><!-- --></A> |
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| 101 | <TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""> |
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| 102 | <TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor"> |
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| 103 | <TH ALIGN="left" COLSPAN="2"><FONT SIZE="+2"> |
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| 104 | Uses of <A HREF="../../../../../../org/apache/hadoop/mapred/join/ComposableRecordReader.html" title="interface in org.apache.hadoop.mapred.join">ComposableRecordReader</A> in <A HREF="../../../../../../org/apache/hadoop/mapred/join/package-summary.html">org.apache.hadoop.mapred.join</A></FONT></TH> |
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| 105 | </TR> |
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| 106 | </TABLE> |
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| 107 | |
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| 108 | <P> |
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| 109 | |
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| 110 | <TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""> |
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| 111 | <TR BGCOLOR="#CCCCFF" CLASS="TableSubHeadingColor"> |
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| 112 | <TH ALIGN="left" COLSPAN="2">Classes in <A HREF="../../../../../../org/apache/hadoop/mapred/join/package-summary.html">org.apache.hadoop.mapred.join</A> that implement <A HREF="../../../../../../org/apache/hadoop/mapred/join/ComposableRecordReader.html" title="interface in org.apache.hadoop.mapred.join">ComposableRecordReader</A></FONT></TH> |
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| 113 | </TR> |
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| 114 | <TR BGCOLOR="white" CLASS="TableRowColor"> |
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| 115 | <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
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| 116 | <CODE> class</CODE></FONT></TD> |
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| 117 | <TD><CODE><B><A HREF="../../../../../../org/apache/hadoop/mapred/join/InnerJoinRecordReader.html" title="class in org.apache.hadoop.mapred.join">InnerJoinRecordReader<K extends WritableComparable></A></B></CODE> |
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| 118 | |
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| 119 | <BR> |
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| 120 | Full inner join.</TD> |
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| 121 | </TR> |
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| 122 | <TR BGCOLOR="white" CLASS="TableRowColor"> |
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| 123 | <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
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| 124 | <CODE> class</CODE></FONT></TD> |
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| 125 | <TD><CODE><B><A HREF="../../../../../../org/apache/hadoop/mapred/join/JoinRecordReader.html" title="class in org.apache.hadoop.mapred.join">JoinRecordReader<K extends WritableComparable></A></B></CODE> |
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| 126 | |
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| 127 | <BR> |
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| 128 | Base class for Composite joins returning Tuples of arbitrary Writables.</TD> |
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| 129 | </TR> |
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| 130 | <TR BGCOLOR="white" CLASS="TableRowColor"> |
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| 131 | <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
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| 132 | <CODE> class</CODE></FONT></TD> |
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| 133 | <TD><CODE><B><A HREF="../../../../../../org/apache/hadoop/mapred/join/MultiFilterRecordReader.html" title="class in org.apache.hadoop.mapred.join">MultiFilterRecordReader<K extends WritableComparable,V extends Writable></A></B></CODE> |
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| 134 | |
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| 135 | <BR> |
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| 136 | Base class for Composite join returning values derived from multiple |
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| 137 | sources, but generally not tuples.</TD> |
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| 138 | </TR> |
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| 139 | <TR BGCOLOR="white" CLASS="TableRowColor"> |
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| 140 | <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
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| 141 | <CODE> class</CODE></FONT></TD> |
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| 142 | <TD><CODE><B><A HREF="../../../../../../org/apache/hadoop/mapred/join/OuterJoinRecordReader.html" title="class in org.apache.hadoop.mapred.join">OuterJoinRecordReader<K extends WritableComparable></A></B></CODE> |
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| 143 | |
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| 144 | <BR> |
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| 145 | Full outer join.</TD> |
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| 146 | </TR> |
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| 147 | <TR BGCOLOR="white" CLASS="TableRowColor"> |
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| 148 | <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
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| 149 | <CODE> class</CODE></FONT></TD> |
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| 150 | <TD><CODE><B><A HREF="../../../../../../org/apache/hadoop/mapred/join/OverrideRecordReader.html" title="class in org.apache.hadoop.mapred.join">OverrideRecordReader<K extends WritableComparable,V extends Writable></A></B></CODE> |
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| 151 | |
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| 152 | <BR> |
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| 153 | Prefer the "rightmost" data source for this key.</TD> |
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| 154 | </TR> |
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| 155 | <TR BGCOLOR="white" CLASS="TableRowColor"> |
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| 156 | <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
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| 157 | <CODE> class</CODE></FONT></TD> |
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| 158 | <TD><CODE><B><A HREF="../../../../../../org/apache/hadoop/mapred/join/WrappedRecordReader.html" title="class in org.apache.hadoop.mapred.join">WrappedRecordReader<K extends WritableComparable,U extends Writable></A></B></CODE> |
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| 159 | |
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| 160 | <BR> |
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| 161 | Proxy class for a RecordReader participating in the join framework.</TD> |
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| 162 | </TR> |
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| 163 | </TABLE> |
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| 164 | |
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| 165 | <P> |
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| 166 | |
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| 167 | <TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""> |
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| 168 | <TR BGCOLOR="#CCCCFF" CLASS="TableSubHeadingColor"> |
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| 169 | <TH ALIGN="left" COLSPAN="2">Fields in <A HREF="../../../../../../org/apache/hadoop/mapred/join/package-summary.html">org.apache.hadoop.mapred.join</A> declared as <A HREF="../../../../../../org/apache/hadoop/mapred/join/ComposableRecordReader.html" title="interface in org.apache.hadoop.mapred.join">ComposableRecordReader</A></FONT></TH> |
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| 170 | </TR> |
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| 171 | <TR BGCOLOR="white" CLASS="TableRowColor"> |
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| 172 | <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
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| 173 | <CODE>protected <A HREF="../../../../../../org/apache/hadoop/mapred/join/ComposableRecordReader.html" title="interface in org.apache.hadoop.mapred.join">ComposableRecordReader</A><<A HREF="../../../../../../org/apache/hadoop/mapred/join/CompositeRecordReader.html" title="type parameter in CompositeRecordReader">K</A>,? extends <A HREF="../../../../../../org/apache/hadoop/mapred/join/CompositeRecordReader.html" title="type parameter in CompositeRecordReader">V</A>>[]</CODE></FONT></TD> |
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| 174 | <TD><CODE><B>CompositeRecordReader.</B><B><A HREF="../../../../../../org/apache/hadoop/mapred/join/CompositeRecordReader.html#kids">kids</A></B></CODE> |
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| 175 | |
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| 176 | <BR> |
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| 177 | </TD> |
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| 178 | </TR> |
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| 179 | </TABLE> |
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| 180 | |
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| 181 | <P> |
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| 182 | |
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| 183 | <TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""> |
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| 184 | <TR BGCOLOR="#CCCCFF" CLASS="TableSubHeadingColor"> |
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| 185 | <TH ALIGN="left" COLSPAN="2">Fields in <A HREF="../../../../../../org/apache/hadoop/mapred/join/package-summary.html">org.apache.hadoop.mapred.join</A> with type parameters of type <A HREF="../../../../../../org/apache/hadoop/mapred/join/ComposableRecordReader.html" title="interface in org.apache.hadoop.mapred.join">ComposableRecordReader</A></FONT></TH> |
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| 186 | </TR> |
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| 187 | <TR BGCOLOR="white" CLASS="TableRowColor"> |
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| 188 | <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
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| 189 | <CODE>protected static <A HREF="http://java.sun.com/javase/6/docs/api/java/util/Map.html?is-external=true" title="class or interface in java.util">Map</A><<A HREF="http://java.sun.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A>,<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><? extends <A HREF="../../../../../../org/apache/hadoop/mapred/join/ComposableRecordReader.html" title="interface in org.apache.hadoop.mapred.join">ComposableRecordReader</A>>></CODE></FONT></TD> |
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| 190 | <TD><CODE><B>Parser.Node.</B><B><A HREF="../../../../../../org/apache/hadoop/mapred/join/Parser.Node.html#rrCstrMap">rrCstrMap</A></B></CODE> |
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| 191 | |
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| 192 | <BR> |
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| 193 | </TD> |
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| 194 | </TR> |
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| 195 | </TABLE> |
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| 196 | |
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| 197 | <P> |
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| 198 | |
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| 199 | <TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""> |
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| 200 | <TR BGCOLOR="#CCCCFF" CLASS="TableSubHeadingColor"> |
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| 201 | <TH ALIGN="left" COLSPAN="2">Methods in <A HREF="../../../../../../org/apache/hadoop/mapred/join/package-summary.html">org.apache.hadoop.mapred.join</A> that return <A HREF="../../../../../../org/apache/hadoop/mapred/join/ComposableRecordReader.html" title="interface in org.apache.hadoop.mapred.join">ComposableRecordReader</A></FONT></TH> |
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| 202 | </TR> |
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| 203 | <TR BGCOLOR="white" CLASS="TableRowColor"> |
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| 204 | <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
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| 205 | <CODE> <A HREF="../../../../../../org/apache/hadoop/mapred/join/ComposableRecordReader.html" title="interface in org.apache.hadoop.mapred.join">ComposableRecordReader</A><<A HREF="../../../../../../org/apache/hadoop/mapred/join/CompositeInputFormat.html" title="type parameter in CompositeInputFormat">K</A>,<A HREF="../../../../../../org/apache/hadoop/mapred/join/TupleWritable.html" title="class in org.apache.hadoop.mapred.join">TupleWritable</A>></CODE></FONT></TD> |
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| 206 | <TD><CODE><B>CompositeInputFormat.</B><B><A HREF="../../../../../../org/apache/hadoop/mapred/join/CompositeInputFormat.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> split, |
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| 207 | <A HREF="../../../../../../org/apache/hadoop/mapred/JobConf.html" title="class in org.apache.hadoop.mapred">JobConf</A> job, |
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| 208 | <A HREF="../../../../../../org/apache/hadoop/mapred/Reporter.html" title="interface in org.apache.hadoop.mapred">Reporter</A> reporter)</CODE> |
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| 209 | |
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| 210 | <BR> |
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| 211 | Construct a CompositeRecordReader for the children of this InputFormat |
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| 212 | as defined in the init expression.</TD> |
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| 213 | </TR> |
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| 214 | <TR BGCOLOR="white" CLASS="TableRowColor"> |
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| 215 | <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
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| 216 | <CODE> <A HREF="../../../../../../org/apache/hadoop/mapred/join/ComposableRecordReader.html" title="interface in org.apache.hadoop.mapred.join">ComposableRecordReader</A><<A HREF="../../../../../../org/apache/hadoop/mapred/join/ComposableInputFormat.html" title="type parameter in ComposableInputFormat">K</A>,<A HREF="../../../../../../org/apache/hadoop/mapred/join/ComposableInputFormat.html" title="type parameter in ComposableInputFormat">V</A>></CODE></FONT></TD> |
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| 217 | <TD><CODE><B>ComposableInputFormat.</B><B><A HREF="../../../../../../org/apache/hadoop/mapred/join/ComposableInputFormat.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> split, |
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| 218 | <A HREF="../../../../../../org/apache/hadoop/mapred/JobConf.html" title="class in org.apache.hadoop.mapred">JobConf</A> job, |
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| 219 | <A HREF="../../../../../../org/apache/hadoop/mapred/Reporter.html" title="interface in org.apache.hadoop.mapred">Reporter</A> reporter)</CODE> |
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| 220 | |
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| 221 | <BR> |
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| 222 | </TD> |
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| 223 | </TR> |
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| 224 | </TABLE> |
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| 225 | |
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| 226 | <P> |
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| 227 | |
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| 228 | <TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""> |
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| 229 | <TR BGCOLOR="#CCCCFF" CLASS="TableSubHeadingColor"> |
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| 230 | <TH ALIGN="left" COLSPAN="2">Methods in <A HREF="../../../../../../org/apache/hadoop/mapred/join/package-summary.html">org.apache.hadoop.mapred.join</A> that return types with arguments of type <A HREF="../../../../../../org/apache/hadoop/mapred/join/ComposableRecordReader.html" title="interface in org.apache.hadoop.mapred.join">ComposableRecordReader</A></FONT></TH> |
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| 231 | </TR> |
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| 232 | <TR BGCOLOR="white" CLASS="TableRowColor"> |
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| 233 | <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
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| 234 | <CODE>protected <A HREF="http://java.sun.com/javase/6/docs/api/java/util/PriorityQueue.html?is-external=true" title="class or interface in java.util">PriorityQueue</A><<A HREF="../../../../../../org/apache/hadoop/mapred/join/ComposableRecordReader.html" title="interface in org.apache.hadoop.mapred.join">ComposableRecordReader</A><<A HREF="../../../../../../org/apache/hadoop/mapred/join/CompositeRecordReader.html" title="type parameter in CompositeRecordReader">K</A>,?>></CODE></FONT></TD> |
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| 235 | <TD><CODE><B>CompositeRecordReader.</B><B><A HREF="../../../../../../org/apache/hadoop/mapred/join/CompositeRecordReader.html#getRecordReaderQueue()">getRecordReaderQueue</A></B>()</CODE> |
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| 236 | |
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| 237 | <BR> |
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| 238 | Return sorted list of RecordReaders for this composite.</TD> |
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| 239 | </TR> |
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| 240 | </TABLE> |
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| 241 | |
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| 242 | <P> |
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| 243 | |
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| 244 | <TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""> |
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| 245 | <TR BGCOLOR="#CCCCFF" CLASS="TableSubHeadingColor"> |
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| 246 | <TH ALIGN="left" COLSPAN="2">Methods in <A HREF="../../../../../../org/apache/hadoop/mapred/join/package-summary.html">org.apache.hadoop.mapred.join</A> with parameters of type <A HREF="../../../../../../org/apache/hadoop/mapred/join/ComposableRecordReader.html" title="interface in org.apache.hadoop.mapred.join">ComposableRecordReader</A></FONT></TH> |
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| 247 | </TR> |
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| 248 | <TR BGCOLOR="white" CLASS="TableRowColor"> |
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| 249 | <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
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| 250 | <CODE> void</CODE></FONT></TD> |
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| 251 | <TD><CODE><B>CompositeRecordReader.</B><B><A HREF="../../../../../../org/apache/hadoop/mapred/join/CompositeRecordReader.html#add(org.apache.hadoop.mapred.join.ComposableRecordReader)">add</A></B>(<A HREF="../../../../../../org/apache/hadoop/mapred/join/ComposableRecordReader.html" title="interface in org.apache.hadoop.mapred.join">ComposableRecordReader</A><<A HREF="../../../../../../org/apache/hadoop/mapred/join/CompositeRecordReader.html" title="type parameter in CompositeRecordReader">K</A>,? extends <A HREF="../../../../../../org/apache/hadoop/mapred/join/CompositeRecordReader.html" title="type parameter in CompositeRecordReader">V</A>> rr)</CODE> |
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| 252 | |
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| 253 | <BR> |
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| 254 | Add a RecordReader to this collection.</TD> |
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| 255 | </TR> |
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| 256 | <TR BGCOLOR="white" CLASS="TableRowColor"> |
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| 257 | <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
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| 258 | <CODE> int</CODE></FONT></TD> |
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| 259 | <TD><CODE><B>WrappedRecordReader.</B><B><A HREF="../../../../../../org/apache/hadoop/mapred/join/WrappedRecordReader.html#compareTo(org.apache.hadoop.mapred.join.ComposableRecordReader)">compareTo</A></B>(<A HREF="../../../../../../org/apache/hadoop/mapred/join/ComposableRecordReader.html" title="interface in org.apache.hadoop.mapred.join">ComposableRecordReader</A><<A HREF="../../../../../../org/apache/hadoop/mapred/join/WrappedRecordReader.html" title="type parameter in WrappedRecordReader">K</A>,?> other)</CODE> |
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| 260 | |
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| 261 | <BR> |
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| 262 | Implement Comparable contract (compare key at head of proxied RR |
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| 263 | with that of another).</TD> |
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| 264 | </TR> |
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| 265 | <TR BGCOLOR="white" CLASS="TableRowColor"> |
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| 266 | <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
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| 267 | <CODE> int</CODE></FONT></TD> |
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| 268 | <TD><CODE><B>CompositeRecordReader.</B><B><A HREF="../../../../../../org/apache/hadoop/mapred/join/CompositeRecordReader.html#compareTo(org.apache.hadoop.mapred.join.ComposableRecordReader)">compareTo</A></B>(<A HREF="../../../../../../org/apache/hadoop/mapred/join/ComposableRecordReader.html" title="interface in org.apache.hadoop.mapred.join">ComposableRecordReader</A><<A HREF="../../../../../../org/apache/hadoop/mapred/join/CompositeRecordReader.html" title="type parameter in CompositeRecordReader">K</A>,?> other)</CODE> |
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| 269 | |
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| 270 | <BR> |
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| 271 | Implement Comparable contract (compare key of join or head of heap |
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| 272 | with that of another).</TD> |
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| 273 | </TR> |
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| 274 | </TABLE> |
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| 275 | |
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| 276 | <P> |
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| 277 | |
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| 278 | <TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""> |
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| 279 | <TR BGCOLOR="#CCCCFF" CLASS="TableSubHeadingColor"> |
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| 280 | <TH ALIGN="left" COLSPAN="2">Method parameters in <A HREF="../../../../../../org/apache/hadoop/mapred/join/package-summary.html">org.apache.hadoop.mapred.join</A> with type arguments of type <A HREF="../../../../../../org/apache/hadoop/mapred/join/ComposableRecordReader.html" title="interface in org.apache.hadoop.mapred.join">ComposableRecordReader</A></FONT></TH> |
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| 281 | </TR> |
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| 282 | <TR BGCOLOR="white" CLASS="TableRowColor"> |
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| 283 | <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
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| 284 | <CODE>protected static void</CODE></FONT></TD> |
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| 285 | <TD><CODE><B>Parser.Node.</B><B><A HREF="../../../../../../org/apache/hadoop/mapred/join/Parser.Node.html#addIdentifier(java.lang.String, java.lang.Class[], java.lang.Class, java.lang.Class)">addIdentifier</A></B>(<A HREF="http://java.sun.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A> ident, |
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| 286 | <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><?>[] mcstrSig, |
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| 287 | <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><? extends <A HREF="../../../../../../org/apache/hadoop/mapred/join/Parser.Node.html" title="class in org.apache.hadoop.mapred.join">Parser.Node</A>> nodetype, |
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| 288 | <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><? extends <A HREF="../../../../../../org/apache/hadoop/mapred/join/ComposableRecordReader.html" title="interface in org.apache.hadoop.mapred.join">ComposableRecordReader</A>> cl)</CODE> |
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| 289 | |
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| 290 | <BR> |
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| 291 | For a given identifier, add a mapping to the nodetype for the parse |
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| 292 | tree and to the ComposableRecordReader to be created, including the |
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| 293 | formals required to invoke the constructor.</TD> |
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| 294 | </TR> |
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