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Uses of Class org.apache.hadoop.mapreduce.lib.join.TupleWritable (Apache Hadoop Main 2.0.0-alpha API)
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<B>Uses of Class<br>org.apache.hadoop.mapreduce.lib.join.TupleWritable</B></H2>
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Packages that use <A HREF="../../../../../../../org/apache/hadoop/mapreduce/lib/join/TupleWritable.html" title="class in org.apache.hadoop.mapreduce.lib.join">TupleWritable</A></FONT></TH>
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<TR BGCOLOR="white" CLASS="TableRowColor">
<TD><A HREF="#org.apache.hadoop.mapred.join"><B>org.apache.hadoop.mapred.join</B></A></TD>
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<TD><A HREF="#org.apache.hadoop.mapreduce.lib.join"><B>org.apache.hadoop.mapreduce.lib.join</B></A></TD>
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Uses of <A HREF="../../../../../../../org/apache/hadoop/mapreduce/lib/join/TupleWritable.html" title="class in org.apache.hadoop.mapreduce.lib.join">TupleWritable</A> in <A HREF="../../../../../../../org/apache/hadoop/mapred/join/package-summary.html">org.apache.hadoop.mapred.join</A></FONT></TH>
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<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
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<TH ALIGN="left" COLSPAN="2">Subclasses of <A HREF="../../../../../../../org/apache/hadoop/mapreduce/lib/join/TupleWritable.html" title="class in org.apache.hadoop.mapreduce.lib.join">TupleWritable</A> in <A HREF="../../../../../../../org/apache/hadoop/mapred/join/package-summary.html">org.apache.hadoop.mapred.join</A></FONT></TH>
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<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;class</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../../../../org/apache/hadoop/mapred/join/TupleWritable.html" title="class in org.apache.hadoop.mapred.join">TupleWritable</A></B></CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Writable type storing multiple <A HREF="../../../../../../../org/apache/hadoop/io/Writable.html" title="interface in org.apache.hadoop.io"><CODE>Writable</CODE></A>s.</TD>
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<P>
<A NAME="org.apache.hadoop.mapreduce.lib.join"><!-- --></A>
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Uses of <A HREF="../../../../../../../org/apache/hadoop/mapreduce/lib/join/TupleWritable.html" title="class in org.apache.hadoop.mapreduce.lib.join">TupleWritable</A> in <A HREF="../../../../../../../org/apache/hadoop/mapreduce/lib/join/package-summary.html">org.apache.hadoop.mapreduce.lib.join</A></FONT></TH>
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<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
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<TH ALIGN="left" COLSPAN="2">Methods in <A HREF="../../../../../../../org/apache/hadoop/mapreduce/lib/join/package-summary.html">org.apache.hadoop.mapreduce.lib.join</A> that return <A HREF="../../../../../../../org/apache/hadoop/mapreduce/lib/join/TupleWritable.html" title="class in org.apache.hadoop.mapreduce.lib.join">TupleWritable</A></FONT></TH>
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<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>protected &nbsp;<A HREF="../../../../../../../org/apache/hadoop/mapreduce/lib/join/TupleWritable.html" title="class in org.apache.hadoop.mapreduce.lib.join">TupleWritable</A></CODE></FONT></TD>
<TD><CODE><B>CompositeRecordReader.</B><B><A HREF="../../../../../../../org/apache/hadoop/mapreduce/lib/join/CompositeRecordReader.html#createTupleWritable()">createTupleWritable</A></B>()</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Create a value to be used internally for joins.</TD>
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<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;<A HREF="../../../../../../../org/apache/hadoop/mapreduce/lib/join/TupleWritable.html" title="class in org.apache.hadoop.mapreduce.lib.join">TupleWritable</A></CODE></FONT></TD>
<TD><CODE><B>JoinRecordReader.</B><B><A HREF="../../../../../../../org/apache/hadoop/mapreduce/lib/join/JoinRecordReader.html#createValue()">createValue</A></B>()</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</TD>
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<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
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<TH ALIGN="left" COLSPAN="2">Methods in <A HREF="../../../../../../../org/apache/hadoop/mapreduce/lib/join/package-summary.html">org.apache.hadoop.mapreduce.lib.join</A> that return types with arguments of type <A HREF="../../../../../../../org/apache/hadoop/mapreduce/lib/join/TupleWritable.html" title="class in org.apache.hadoop.mapreduce.lib.join">TupleWritable</A></FONT></TH>
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<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;<A HREF="../../../../../../../org/apache/hadoop/mapreduce/RecordReader.html" title="class in org.apache.hadoop.mapreduce">RecordReader</A>&lt;<A HREF="../../../../../../../org/apache/hadoop/mapreduce/lib/join/CompositeInputFormat.html" title="type parameter in CompositeInputFormat">K</A>,<A HREF="../../../../../../../org/apache/hadoop/mapreduce/lib/join/TupleWritable.html" title="class in org.apache.hadoop.mapreduce.lib.join">TupleWritable</A>&gt;</CODE></FONT></TD>
<TD><CODE><B>CompositeInputFormat.</B><B><A HREF="../../../../../../../org/apache/hadoop/mapreduce/lib/join/CompositeInputFormat.html#createRecordReader(org.apache.hadoop.mapreduce.InputSplit, org.apache.hadoop.mapreduce.TaskAttemptContext)">createRecordReader</A></B>(<A HREF="../../../../../../../org/apache/hadoop/mapreduce/InputSplit.html" title="class in org.apache.hadoop.mapreduce">InputSplit</A>&nbsp;split,
                                     <A HREF="../../../../../../../org/apache/hadoop/mapreduce/TaskAttemptContext.html" title="interface in org.apache.hadoop.mapreduce">TaskAttemptContext</A>&nbsp;taskContext)</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Construct a CompositeRecordReader for the children of this InputFormat
 as defined in the init expression.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>protected &nbsp;<A HREF="../../../../../../../org/apache/hadoop/mapreduce/lib/join/ResetableIterator.html" title="interface in org.apache.hadoop.mapreduce.lib.join">ResetableIterator</A>&lt;<A HREF="../../../../../../../org/apache/hadoop/mapreduce/lib/join/TupleWritable.html" title="class in org.apache.hadoop.mapreduce.lib.join">TupleWritable</A>&gt;</CODE></FONT></TD>
<TD><CODE><B>JoinRecordReader.</B><B><A HREF="../../../../../../../org/apache/hadoop/mapreduce/lib/join/JoinRecordReader.html#getDelegate()">getDelegate</A></B>()</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Return an iterator wrapping the JoinCollector.</TD>
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<TH ALIGN="left" COLSPAN="2">Methods in <A HREF="../../../../../../../org/apache/hadoop/mapreduce/lib/join/package-summary.html">org.apache.hadoop.mapreduce.lib.join</A> with parameters of type <A HREF="../../../../../../../org/apache/hadoop/mapreduce/lib/join/TupleWritable.html" title="class in org.apache.hadoop.mapreduce.lib.join">TupleWritable</A></FONT></TH>
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<TR BGCOLOR="white" CLASS="TableRowColor">
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<CODE>protected &nbsp;boolean</CODE></FONT></TD>
<TD><CODE><B>InnerJoinRecordReader.</B><B><A HREF="../../../../../../../org/apache/hadoop/mapreduce/lib/join/InnerJoinRecordReader.html#combine(java.lang.Object[], org.apache.hadoop.mapreduce.lib.join.TupleWritable)">combine</A></B>(<A HREF="http://download.oracle.com/javase/6/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</A>[]&nbsp;srcs,
               <A HREF="../../../../../../../org/apache/hadoop/mapreduce/lib/join/TupleWritable.html" title="class in org.apache.hadoop.mapreduce.lib.join">TupleWritable</A>&nbsp;dst)</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Return true iff the tuple is full (all data sources contain this key).</TD>
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<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>protected &nbsp;boolean</CODE></FONT></TD>
<TD><CODE><B>MultiFilterRecordReader.</B><B><A HREF="../../../../../../../org/apache/hadoop/mapreduce/lib/join/MultiFilterRecordReader.html#combine(java.lang.Object[], org.apache.hadoop.mapreduce.lib.join.TupleWritable)">combine</A></B>(<A HREF="http://download.oracle.com/javase/6/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</A>[]&nbsp;srcs,
               <A HREF="../../../../../../../org/apache/hadoop/mapreduce/lib/join/TupleWritable.html" title="class in org.apache.hadoop.mapreduce.lib.join">TupleWritable</A>&nbsp;dst)</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Default implementation offers <A HREF="../../../../../../../org/apache/hadoop/mapreduce/lib/join/MultiFilterRecordReader.html#emit(org.apache.hadoop.mapreduce.lib.join.TupleWritable)"><CODE>MultiFilterRecordReader.emit(org.apache.hadoop.mapreduce.lib.join.TupleWritable)</CODE></A> every Tuple from the
 collector (the outer join of child RRs).</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>protected &nbsp;boolean</CODE></FONT></TD>
<TD><CODE><B>OuterJoinRecordReader.</B><B><A HREF="../../../../../../../org/apache/hadoop/mapreduce/lib/join/OuterJoinRecordReader.html#combine(java.lang.Object[], org.apache.hadoop.mapreduce.lib.join.TupleWritable)">combine</A></B>(<A HREF="http://download.oracle.com/javase/6/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</A>[]&nbsp;srcs,
               <A HREF="../../../../../../../org/apache/hadoop/mapreduce/lib/join/TupleWritable.html" title="class in org.apache.hadoop.mapreduce.lib.join">TupleWritable</A>&nbsp;dst)</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Emit everything from the collector.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>protected abstract &nbsp;boolean</CODE></FONT></TD>
<TD><CODE><B>CompositeRecordReader.</B><B><A HREF="../../../../../../../org/apache/hadoop/mapreduce/lib/join/CompositeRecordReader.html#combine(java.lang.Object[], org.apache.hadoop.mapreduce.lib.join.TupleWritable)">combine</A></B>(<A HREF="http://download.oracle.com/javase/6/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</A>[]&nbsp;srcs,
               <A HREF="../../../../../../../org/apache/hadoop/mapreduce/lib/join/TupleWritable.html" title="class in org.apache.hadoop.mapreduce.lib.join">TupleWritable</A>&nbsp;value)</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>protected &nbsp;<A HREF="../../../../../../../org/apache/hadoop/mapreduce/lib/join/OverrideRecordReader.html" title="type parameter in OverrideRecordReader">V</A></CODE></FONT></TD>
<TD><CODE><B>OverrideRecordReader.</B><B><A HREF="../../../../../../../org/apache/hadoop/mapreduce/lib/join/OverrideRecordReader.html#emit(org.apache.hadoop.mapreduce.lib.join.TupleWritable)">emit</A></B>(<A HREF="../../../../../../../org/apache/hadoop/mapreduce/lib/join/TupleWritable.html" title="class in org.apache.hadoop.mapreduce.lib.join">TupleWritable</A>&nbsp;dst)</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Emit the value with the highest position in the tuple.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>protected abstract &nbsp;<A HREF="../../../../../../../org/apache/hadoop/mapreduce/lib/join/MultiFilterRecordReader.html" title="type parameter in MultiFilterRecordReader">V</A></CODE></FONT></TD>
<TD><CODE><B>MultiFilterRecordReader.</B><B><A HREF="../../../../../../../org/apache/hadoop/mapreduce/lib/join/MultiFilterRecordReader.html#emit(org.apache.hadoop.mapreduce.lib.join.TupleWritable)">emit</A></B>(<A HREF="../../../../../../../org/apache/hadoop/mapreduce/lib/join/TupleWritable.html" title="class in org.apache.hadoop.mapreduce.lib.join">TupleWritable</A>&nbsp;dst)</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;For each tuple emitted, return a value (typically one of the values
 in the tuple).</TD>
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