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ValueAggregatorJobBase (Apache Hadoop Main 2.0.0-alpha API)
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org.apache.hadoop.mapred.lib.aggregate</FONT>
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Class ValueAggregatorJobBase&lt;K1 extends <A HREF="../../../../../../org/apache/hadoop/io/WritableComparable.html" title="interface in org.apache.hadoop.io">WritableComparable</A>,V1 extends <A HREF="../../../../../../org/apache/hadoop/io/Writable.html" title="interface in org.apache.hadoop.io">Writable</A>&gt;</H2>
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<DT><B>All Implemented Interfaces:</B> <DD><A HREF="http://download.oracle.com/javase/6/docs/api/java/io/Closeable.html?is-external=true" title="class or interface in java.io">Closeable</A>, <A HREF="../../../../../../org/apache/hadoop/mapred/JobConfigurable.html" title="interface in org.apache.hadoop.mapred">JobConfigurable</A>, <A HREF="../../../../../../org/apache/hadoop/mapred/Mapper.html" title="interface in org.apache.hadoop.mapred">Mapper</A>&lt;K1,V1,<A HREF="../../../../../../org/apache/hadoop/io/Text.html" title="class in org.apache.hadoop.io">Text</A>,<A HREF="../../../../../../org/apache/hadoop/io/Text.html" title="class in org.apache.hadoop.io">Text</A>&gt;, <A HREF="../../../../../../org/apache/hadoop/mapred/Reducer.html" title="interface in org.apache.hadoop.mapred">Reducer</A>&lt;<A HREF="../../../../../../org/apache/hadoop/io/Text.html" title="class in org.apache.hadoop.io">Text</A>,<A HREF="../../../../../../org/apache/hadoop/io/Text.html" title="class in org.apache.hadoop.io">Text</A>,<A HREF="../../../../../../org/apache/hadoop/io/Text.html" title="class in org.apache.hadoop.io">Text</A>,<A HREF="../../../../../../org/apache/hadoop/io/Text.html" title="class in org.apache.hadoop.io">Text</A>&gt;</DD>
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<DT><B>Direct Known Subclasses:</B> <DD><A HREF="../../../../../../org/apache/hadoop/mapred/lib/aggregate/ValueAggregatorCombiner.html" title="class in org.apache.hadoop.mapred.lib.aggregate">ValueAggregatorCombiner</A>, <A HREF="../../../../../../org/apache/hadoop/mapred/lib/aggregate/ValueAggregatorMapper.html" title="class in org.apache.hadoop.mapred.lib.aggregate">ValueAggregatorMapper</A>, <A HREF="../../../../../../org/apache/hadoop/mapred/lib/aggregate/ValueAggregatorReducer.html" title="class in org.apache.hadoop.mapred.lib.aggregate">ValueAggregatorReducer</A></DD>
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<DT><PRE><FONT SIZE="-1">@InterfaceAudience.Public
@InterfaceStability.Stable
</FONT>public abstract class <A HREF="../../../../../../src-html/org/apache/hadoop/mapred/lib/aggregate/ValueAggregatorJobBase.html#line.39"><B>ValueAggregatorJobBase&lt;K1 extends <A HREF="../../../../../../org/apache/hadoop/io/WritableComparable.html" title="interface in org.apache.hadoop.io">WritableComparable</A>,V1 extends <A HREF="../../../../../../org/apache/hadoop/io/Writable.html" title="interface in org.apache.hadoop.io">Writable</A>&gt;</B></A><DT>extends <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><DT>implements <A HREF="../../../../../../org/apache/hadoop/mapred/Mapper.html" title="interface in org.apache.hadoop.mapred">Mapper</A>&lt;K1,V1,<A HREF="../../../../../../org/apache/hadoop/io/Text.html" title="class in org.apache.hadoop.io">Text</A>,<A HREF="../../../../../../org/apache/hadoop/io/Text.html" title="class in org.apache.hadoop.io">Text</A>&gt;, <A HREF="../../../../../../org/apache/hadoop/mapred/Reducer.html" title="interface in org.apache.hadoop.mapred">Reducer</A>&lt;<A HREF="../../../../../../org/apache/hadoop/io/Text.html" title="class in org.apache.hadoop.io">Text</A>,<A HREF="../../../../../../org/apache/hadoop/io/Text.html" title="class in org.apache.hadoop.io">Text</A>,<A HREF="../../../../../../org/apache/hadoop/io/Text.html" title="class in org.apache.hadoop.io">Text</A>,<A HREF="../../../../../../org/apache/hadoop/io/Text.html" title="class in org.apache.hadoop.io">Text</A>&gt;</DL>
</PRE>

<P>
This abstract class implements some common functionalities of the
 the generic mapper, reducer and combiner classes of Aggregate.
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<CODE>protected &nbsp;<A HREF="http://download.oracle.com/javase/6/docs/api/java/util/ArrayList.html?is-external=true" title="class or interface in java.util">ArrayList</A>&lt;<A HREF="../../../../../../org/apache/hadoop/mapred/lib/aggregate/ValueAggregatorDescriptor.html" title="interface in org.apache.hadoop.mapred.lib.aggregate">ValueAggregatorDescriptor</A>&gt;</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../../../org/apache/hadoop/mapred/lib/aggregate/ValueAggregatorJobBase.html#aggregatorDescriptorList">aggregatorDescriptorList</A></B></CODE>

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<TD><CODE><B><A HREF="../../../../../../org/apache/hadoop/mapred/lib/aggregate/ValueAggregatorJobBase.html#ValueAggregatorJobBase()">ValueAggregatorJobBase</A></B>()</CODE>

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<CODE>&nbsp;void</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../../../org/apache/hadoop/mapred/lib/aggregate/ValueAggregatorJobBase.html#close()">close</A></B>()</CODE>

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<CODE>&nbsp;void</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../../../org/apache/hadoop/mapred/lib/aggregate/ValueAggregatorJobBase.html#configure(org.apache.hadoop.mapred.JobConf)">configure</A></B>(<A HREF="../../../../../../org/apache/hadoop/mapred/JobConf.html" title="class in org.apache.hadoop.mapred">JobConf</A>&nbsp;job)</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Initializes a new instance from a <A HREF="../../../../../../org/apache/hadoop/mapred/JobConf.html" title="class in org.apache.hadoop.mapred"><CODE>JobConf</CODE></A>.</TD>
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<CODE>protected &nbsp;void</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../../../org/apache/hadoop/mapred/lib/aggregate/ValueAggregatorJobBase.html#logSpec()">logSpec</A></B>()</CODE>

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<TH ALIGN="left"><B>Methods inherited from interface org.apache.hadoop.mapred.<A HREF="../../../../../../org/apache/hadoop/mapred/Mapper.html" title="interface in org.apache.hadoop.mapred">Mapper</A></B></TH>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD><CODE><A HREF="../../../../../../org/apache/hadoop/mapred/Mapper.html#map(K1, V1, org.apache.hadoop.mapred.OutputCollector, org.apache.hadoop.mapred.Reporter)">map</A></CODE></TD>
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&nbsp;<A NAME="methods_inherited_from_class_org.apache.hadoop.mapred.Reducer"><!-- --></A>
<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
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<TH ALIGN="left"><B>Methods inherited from interface org.apache.hadoop.mapred.<A HREF="../../../../../../org/apache/hadoop/mapred/Reducer.html" title="interface in org.apache.hadoop.mapred">Reducer</A></B></TH>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD><CODE><A HREF="../../../../../../org/apache/hadoop/mapred/Reducer.html#reduce(K2, java.util.Iterator, org.apache.hadoop.mapred.OutputCollector, org.apache.hadoop.mapred.Reporter)">reduce</A></CODE></TD>
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<A NAME="aggregatorDescriptorList"><!-- --></A><H3>
aggregatorDescriptorList</H3>
<PRE>
protected <A HREF="http://download.oracle.com/javase/6/docs/api/java/util/ArrayList.html?is-external=true" title="class or interface in java.util">ArrayList</A>&lt;<A HREF="../../../../../../org/apache/hadoop/mapred/lib/aggregate/ValueAggregatorDescriptor.html" title="interface in org.apache.hadoop.mapred.lib.aggregate">ValueAggregatorDescriptor</A>&gt; <A HREF="../../../../../../src-html/org/apache/hadoop/mapred/lib/aggregate/ValueAggregatorJobBase.html#line.43"><B>aggregatorDescriptorList</B></A></PRE>
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<DL>
</DL>
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<!-- ========= CONSTRUCTOR DETAIL ======== -->

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<A NAME="ValueAggregatorJobBase()"><!-- --></A><H3>
ValueAggregatorJobBase</H3>
<PRE>
public <A HREF="../../../../../../src-html/org/apache/hadoop/mapred/lib/aggregate/ValueAggregatorJobBase.html#line.39"><B>ValueAggregatorJobBase</B></A>()</PRE>
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<A NAME="configure(org.apache.hadoop.mapred.JobConf)"><!-- --></A><H3>
configure</H3>
<PRE>
public void <A HREF="../../../../../../src-html/org/apache/hadoop/mapred/lib/aggregate/ValueAggregatorJobBase.html#line.45"><B>configure</B></A>(<A HREF="../../../../../../org/apache/hadoop/mapred/JobConf.html" title="class in org.apache.hadoop.mapred">JobConf</A>&nbsp;job)</PRE>
<DL>
<DD><B>Description copied from interface: <CODE><A HREF="../../../../../../org/apache/hadoop/mapred/JobConfigurable.html#configure(org.apache.hadoop.mapred.JobConf)">JobConfigurable</A></CODE></B></DD>
<DD>Initializes a new instance from a <A HREF="../../../../../../org/apache/hadoop/mapred/JobConf.html" title="class in org.apache.hadoop.mapred"><CODE>JobConf</CODE></A>.
<P>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE><A HREF="../../../../../../org/apache/hadoop/mapred/JobConfigurable.html#configure(org.apache.hadoop.mapred.JobConf)">configure</A></CODE> in interface <CODE><A HREF="../../../../../../org/apache/hadoop/mapred/JobConfigurable.html" title="interface in org.apache.hadoop.mapred">JobConfigurable</A></CODE></DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>job</CODE> - the configuration</DL>
</DD>
</DL>
<HR>

<A NAME="logSpec()"><!-- --></A><H3>
logSpec</H3>
<PRE>
protected void <A HREF="../../../../../../src-html/org/apache/hadoop/mapred/lib/aggregate/ValueAggregatorJobBase.html#line.86"><B>logSpec</B></A>()</PRE>
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</DL>
</DD>
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<A NAME="close()"><!-- --></A><H3>
close</H3>
<PRE>
public void <A HREF="../../../../../../src-html/org/apache/hadoop/mapred/lib/aggregate/ValueAggregatorJobBase.html#line.90"><B>close</B></A>()
           throws <A HREF="http://download.oracle.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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<DT><B>Specified by:</B><DD><CODE><A HREF="http://download.oracle.com/javase/6/docs/api/java/io/Closeable.html?is-external=true#close()" title="class or interface in java.io">close</A></CODE> in interface <CODE><A HREF="http://download.oracle.com/javase/6/docs/api/java/io/Closeable.html?is-external=true" title="class or interface in java.io">Closeable</A></CODE></DL>
</DD>
<DD><DL>

<DT><B>Throws:</B>
<DD><CODE><A HREF="http://download.oracle.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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