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ValueAggregatorBaseDescriptor (Apache Hadoop Main 0.23.1 API)
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org.apache.hadoop.mapred.lib.aggregate</FONT>
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Class ValueAggregatorBaseDescriptor</H2>
<PRE>
<A HREF="http://download.oracle.com/javase/6/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">java.lang.Object</A>
  <IMG SRC="../../../../../../resources/inherit.gif" ALT="extended by "><A HREF="../../../../../../org/apache/hadoop/mapreduce/lib/aggregate/ValueAggregatorBaseDescriptor.html" title="class in org.apache.hadoop.mapreduce.lib.aggregate">org.apache.hadoop.mapreduce.lib.aggregate.ValueAggregatorBaseDescriptor</A>
      <IMG SRC="../../../../../../resources/inherit.gif" ALT="extended by "><B>org.apache.hadoop.mapred.lib.aggregate.ValueAggregatorBaseDescriptor</B>
</PRE>
<DL>
<DT><B>All Implemented Interfaces:</B> <DD><A HREF="../../../../../../org/apache/hadoop/mapreduce/lib/aggregate/ValueAggregatorDescriptor.html" title="interface in org.apache.hadoop.mapreduce.lib.aggregate">ValueAggregatorDescriptor</A></DD>
</DL>
<HR>
<DL>
<DT><PRE><FONT SIZE="-1">@InterfaceAudience.Public
@InterfaceStability.Stable
</FONT>public class <A HREF="../../../../../../src-html/org/apache/hadoop/mapred/lib/aggregate/ValueAggregatorBaseDescriptor.html#line.34"><B>ValueAggregatorBaseDescriptor</B></A><DT>extends <A HREF="../../../../../../org/apache/hadoop/mapreduce/lib/aggregate/ValueAggregatorBaseDescriptor.html" title="class in org.apache.hadoop.mapreduce.lib.aggregate">ValueAggregatorBaseDescriptor</A><DT>implements <A HREF="../../../../../../org/apache/hadoop/mapred/lib/aggregate/ValueAggregatorDescriptor.html" title="interface in org.apache.hadoop.mapred.lib.aggregate">ValueAggregatorDescriptor</A></DL>
</PRE>

<P>
This class implements the common functionalities of 
 the subclasses of ValueAggregatorDescriptor class.
<P>

<P>
<HR>

<P>
<!-- =========== FIELD SUMMARY =========== -->

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<B>Field Summary</B></FONT></TH>
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<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>static&nbsp;<A HREF="http://download.oracle.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A></CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../../../org/apache/hadoop/mapred/lib/aggregate/ValueAggregatorBaseDescriptor.html#DOUBLE_VALUE_SUM">DOUBLE_VALUE_SUM</A></B></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>static&nbsp;<A HREF="http://download.oracle.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A></CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../../../org/apache/hadoop/mapred/lib/aggregate/ValueAggregatorBaseDescriptor.html#LONG_VALUE_MAX">LONG_VALUE_MAX</A></B></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>static&nbsp;<A HREF="http://download.oracle.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A></CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../../../org/apache/hadoop/mapred/lib/aggregate/ValueAggregatorBaseDescriptor.html#LONG_VALUE_MIN">LONG_VALUE_MIN</A></B></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>static&nbsp;<A HREF="http://download.oracle.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A></CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../../../org/apache/hadoop/mapred/lib/aggregate/ValueAggregatorBaseDescriptor.html#LONG_VALUE_SUM">LONG_VALUE_SUM</A></B></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>static&nbsp;<A HREF="http://download.oracle.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A></CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../../../org/apache/hadoop/mapred/lib/aggregate/ValueAggregatorBaseDescriptor.html#STRING_VALUE_MAX">STRING_VALUE_MAX</A></B></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>static&nbsp;<A HREF="http://download.oracle.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A></CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../../../org/apache/hadoop/mapred/lib/aggregate/ValueAggregatorBaseDescriptor.html#STRING_VALUE_MIN">STRING_VALUE_MIN</A></B></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>static&nbsp;<A HREF="http://download.oracle.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A></CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../../../org/apache/hadoop/mapred/lib/aggregate/ValueAggregatorBaseDescriptor.html#UNIQ_VALUE_COUNT">UNIQ_VALUE_COUNT</A></B></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>static&nbsp;<A HREF="http://download.oracle.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A></CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../../../org/apache/hadoop/mapred/lib/aggregate/ValueAggregatorBaseDescriptor.html#VALUE_HISTOGRAM">VALUE_HISTOGRAM</A></B></CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</TD>
</TR>
</TABLE>
&nbsp;<A NAME="fields_inherited_from_class_org.apache.hadoop.mapreduce.lib.aggregate.ValueAggregatorBaseDescriptor"><!-- --></A>
<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
<TR BGCOLOR="#EEEEFF" CLASS="TableSubHeadingColor">
<TH ALIGN="left"><B>Fields inherited from class org.apache.hadoop.mapreduce.lib.aggregate.<A HREF="../../../../../../org/apache/hadoop/mapreduce/lib/aggregate/ValueAggregatorBaseDescriptor.html" title="class in org.apache.hadoop.mapreduce.lib.aggregate">ValueAggregatorBaseDescriptor</A></B></TH>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD><CODE><A HREF="../../../../../../org/apache/hadoop/mapreduce/lib/aggregate/ValueAggregatorBaseDescriptor.html#inputFile">inputFile</A></CODE></TD>
</TR>
</TABLE>
&nbsp;<A NAME="fields_inherited_from_class_org.apache.hadoop.mapred.lib.aggregate.ValueAggregatorDescriptor"><!-- --></A>
<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
<TR BGCOLOR="#EEEEFF" CLASS="TableSubHeadingColor">
<TH ALIGN="left"><B>Fields inherited from interface org.apache.hadoop.mapred.lib.aggregate.<A HREF="../../../../../../org/apache/hadoop/mapred/lib/aggregate/ValueAggregatorDescriptor.html" title="interface in org.apache.hadoop.mapred.lib.aggregate">ValueAggregatorDescriptor</A></B></TH>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD><CODE><A HREF="../../../../../../org/apache/hadoop/mapred/lib/aggregate/ValueAggregatorDescriptor.html#ONE">ONE</A>, <A HREF="../../../../../../org/apache/hadoop/mapred/lib/aggregate/ValueAggregatorDescriptor.html#TYPE_SEPARATOR">TYPE_SEPARATOR</A></CODE></TD>
</TR>
</TABLE>
&nbsp;
<!-- ======== CONSTRUCTOR SUMMARY ======== -->

<A NAME="constructor_summary"><!-- --></A>
<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
<TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor">
<TH ALIGN="left" COLSPAN="2"><FONT SIZE="+2">
<B>Constructor Summary</B></FONT></TH>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD><CODE><B><A HREF="../../../../../../org/apache/hadoop/mapred/lib/aggregate/ValueAggregatorBaseDescriptor.html#ValueAggregatorBaseDescriptor()">ValueAggregatorBaseDescriptor</A></B>()</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</TD>
</TR>
</TABLE>
&nbsp;
<!-- ========== METHOD SUMMARY =========== -->

<A NAME="method_summary"><!-- --></A>
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<B>Method Summary</B></FONT></TH>
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<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;void</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../../../org/apache/hadoop/mapred/lib/aggregate/ValueAggregatorBaseDescriptor.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;get the input file name.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>static&nbsp;<A HREF="http://download.oracle.com/javase/6/docs/api/java/util/Map.Entry.html?is-external=true" title="class or interface in java.util">Map.Entry</A>&lt;<A HREF="../../../../../../org/apache/hadoop/io/Text.html" title="class in org.apache.hadoop.io">Text</A>,<A HREF="../../../../../../org/apache/hadoop/io/Text.html" title="class in org.apache.hadoop.io">Text</A>&gt;</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../../../org/apache/hadoop/mapred/lib/aggregate/ValueAggregatorBaseDescriptor.html#generateEntry(java.lang.String, java.lang.String, org.apache.hadoop.io.Text)">generateEntry</A></B>(<A HREF="http://download.oracle.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A>&nbsp;type,
                           <A HREF="http://download.oracle.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A>&nbsp;id,
                           <A HREF="../../../../../../org/apache/hadoop/io/Text.html" title="class in org.apache.hadoop.io">Text</A>&nbsp;val)</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>static&nbsp;<A HREF="../../../../../../org/apache/hadoop/mapred/lib/aggregate/ValueAggregator.html" title="interface in org.apache.hadoop.mapred.lib.aggregate">ValueAggregator</A></CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../../../org/apache/hadoop/mapred/lib/aggregate/ValueAggregatorBaseDescriptor.html#generateValueAggregator(java.lang.String)">generateValueAggregator</A></B>(<A HREF="http://download.oracle.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A>&nbsp;type)</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</TD>
</TR>
</TABLE>
&nbsp;<A NAME="methods_inherited_from_class_org.apache.hadoop.mapreduce.lib.aggregate.ValueAggregatorBaseDescriptor"><!-- --></A>
<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
<TR BGCOLOR="#EEEEFF" CLASS="TableSubHeadingColor">
<TH ALIGN="left"><B>Methods inherited from class org.apache.hadoop.mapreduce.lib.aggregate.<A HREF="../../../../../../org/apache/hadoop/mapreduce/lib/aggregate/ValueAggregatorBaseDescriptor.html" title="class in org.apache.hadoop.mapreduce.lib.aggregate">ValueAggregatorBaseDescriptor</A></B></TH>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD><CODE><A HREF="../../../../../../org/apache/hadoop/mapreduce/lib/aggregate/ValueAggregatorBaseDescriptor.html#configure(org.apache.hadoop.conf.Configuration)">configure</A>, <A HREF="../../../../../../org/apache/hadoop/mapreduce/lib/aggregate/ValueAggregatorBaseDescriptor.html#generateKeyValPairs(java.lang.Object, java.lang.Object)">generateKeyValPairs</A>, <A HREF="../../../../../../org/apache/hadoop/mapreduce/lib/aggregate/ValueAggregatorBaseDescriptor.html#generateValueAggregator(java.lang.String, long)">generateValueAggregator</A></CODE></TD>
</TR>
</TABLE>
&nbsp;<A NAME="methods_inherited_from_class_java.lang.Object"><!-- --></A>
<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
<TR BGCOLOR="#EEEEFF" CLASS="TableSubHeadingColor">
<TH ALIGN="left"><B>Methods inherited from class java.lang.<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></B></TH>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD><CODE><A HREF="http://download.oracle.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://download.oracle.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://download.oracle.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://download.oracle.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://download.oracle.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://download.oracle.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://download.oracle.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://download.oracle.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://download.oracle.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://download.oracle.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://download.oracle.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>
</TR>
</TABLE>
&nbsp;<A NAME="methods_inherited_from_class_org.apache.hadoop.mapreduce.lib.aggregate.ValueAggregatorDescriptor"><!-- --></A>
<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
<TR BGCOLOR="#EEEEFF" CLASS="TableSubHeadingColor">
<TH ALIGN="left"><B>Methods inherited from interface org.apache.hadoop.mapreduce.lib.aggregate.<A HREF="../../../../../../org/apache/hadoop/mapreduce/lib/aggregate/ValueAggregatorDescriptor.html" title="interface in org.apache.hadoop.mapreduce.lib.aggregate">ValueAggregatorDescriptor</A></B></TH>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD><CODE><A HREF="../../../../../../org/apache/hadoop/mapreduce/lib/aggregate/ValueAggregatorDescriptor.html#configure(org.apache.hadoop.conf.Configuration)">configure</A>, <A HREF="../../../../../../org/apache/hadoop/mapreduce/lib/aggregate/ValueAggregatorDescriptor.html#generateKeyValPairs(java.lang.Object, java.lang.Object)">generateKeyValPairs</A></CODE></TD>
</TR>
</TABLE>
&nbsp;
<P>

<!-- ============ FIELD DETAIL =========== -->

<A NAME="field_detail"><!-- --></A>
<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
<TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor">
<TH ALIGN="left" COLSPAN="1"><FONT SIZE="+2">
<B>Field Detail</B></FONT></TH>
</TR>
</TABLE>

<A NAME="UNIQ_VALUE_COUNT"><!-- --></A><H3>
UNIQ_VALUE_COUNT</H3>
<PRE>
public static final <A HREF="http://download.oracle.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A> <A HREF="../../../../../../src-html/org/apache/hadoop/mapred/lib/aggregate/ValueAggregatorBaseDescriptor.html#line.38"><B>UNIQ_VALUE_COUNT</B></A></PRE>
<DL>
<DL>
<DT><B>See Also:</B><DD><A HREF="../../../../../../constant-values.html#org.apache.hadoop.mapred.lib.aggregate.ValueAggregatorBaseDescriptor.UNIQ_VALUE_COUNT">Constant Field Values</A></DL>
</DL>
<HR>

<A NAME="LONG_VALUE_SUM"><!-- --></A><H3>
LONG_VALUE_SUM</H3>
<PRE>
public static final <A HREF="http://download.oracle.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A> <A HREF="../../../../../../src-html/org/apache/hadoop/mapred/lib/aggregate/ValueAggregatorBaseDescriptor.html#line.41"><B>LONG_VALUE_SUM</B></A></PRE>
<DL>
<DL>
<DT><B>See Also:</B><DD><A HREF="../../../../../../constant-values.html#org.apache.hadoop.mapred.lib.aggregate.ValueAggregatorBaseDescriptor.LONG_VALUE_SUM">Constant Field Values</A></DL>
</DL>
<HR>

<A NAME="DOUBLE_VALUE_SUM"><!-- --></A><H3>
DOUBLE_VALUE_SUM</H3>
<PRE>
public static final <A HREF="http://download.oracle.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A> <A HREF="../../../../../../src-html/org/apache/hadoop/mapred/lib/aggregate/ValueAggregatorBaseDescriptor.html#line.44"><B>DOUBLE_VALUE_SUM</B></A></PRE>
<DL>
<DL>
<DT><B>See Also:</B><DD><A HREF="../../../../../../constant-values.html#org.apache.hadoop.mapred.lib.aggregate.ValueAggregatorBaseDescriptor.DOUBLE_VALUE_SUM">Constant Field Values</A></DL>
</DL>
<HR>

<A NAME="VALUE_HISTOGRAM"><!-- --></A><H3>
VALUE_HISTOGRAM</H3>
<PRE>
public static final <A HREF="http://download.oracle.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A> <A HREF="../../../../../../src-html/org/apache/hadoop/mapred/lib/aggregate/ValueAggregatorBaseDescriptor.html#line.47"><B>VALUE_HISTOGRAM</B></A></PRE>
<DL>
<DL>
<DT><B>See Also:</B><DD><A HREF="../../../../../../constant-values.html#org.apache.hadoop.mapred.lib.aggregate.ValueAggregatorBaseDescriptor.VALUE_HISTOGRAM">Constant Field Values</A></DL>
</DL>
<HR>

<A NAME="LONG_VALUE_MAX"><!-- --></A><H3>
LONG_VALUE_MAX</H3>
<PRE>
public static final <A HREF="http://download.oracle.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A> <A HREF="../../../../../../src-html/org/apache/hadoop/mapred/lib/aggregate/ValueAggregatorBaseDescriptor.html#line.50"><B>LONG_VALUE_MAX</B></A></PRE>
<DL>
<DL>
<DT><B>See Also:</B><DD><A HREF="../../../../../../constant-values.html#org.apache.hadoop.mapred.lib.aggregate.ValueAggregatorBaseDescriptor.LONG_VALUE_MAX">Constant Field Values</A></DL>
</DL>
<HR>

<A NAME="LONG_VALUE_MIN"><!-- --></A><H3>
LONG_VALUE_MIN</H3>
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public static final <A HREF="http://download.oracle.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A> <A HREF="../../../../../../src-html/org/apache/hadoop/mapred/lib/aggregate/ValueAggregatorBaseDescriptor.html#line.53"><B>LONG_VALUE_MIN</B></A></PRE>
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<A NAME="STRING_VALUE_MAX"><!-- --></A><H3>
STRING_VALUE_MAX</H3>
<PRE>
public static final <A HREF="http://download.oracle.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A> <A HREF="../../../../../../src-html/org/apache/hadoop/mapred/lib/aggregate/ValueAggregatorBaseDescriptor.html#line.56"><B>STRING_VALUE_MAX</B></A></PRE>
<DL>
<DL>
<DT><B>See Also:</B><DD><A HREF="../../../../../../constant-values.html#org.apache.hadoop.mapred.lib.aggregate.ValueAggregatorBaseDescriptor.STRING_VALUE_MAX">Constant Field Values</A></DL>
</DL>
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<A NAME="STRING_VALUE_MIN"><!-- --></A><H3>
STRING_VALUE_MIN</H3>
<PRE>
public static final <A HREF="http://download.oracle.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A> <A HREF="../../../../../../src-html/org/apache/hadoop/mapred/lib/aggregate/ValueAggregatorBaseDescriptor.html#line.59"><B>STRING_VALUE_MIN</B></A></PRE>
<DL>
<DL>
<DT><B>See Also:</B><DD><A HREF="../../../../../../constant-values.html#org.apache.hadoop.mapred.lib.aggregate.ValueAggregatorBaseDescriptor.STRING_VALUE_MIN">Constant Field Values</A></DL>
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<A NAME="ValueAggregatorBaseDescriptor()"><!-- --></A><H3>
ValueAggregatorBaseDescriptor</H3>
<PRE>
public <A HREF="../../../../../../src-html/org/apache/hadoop/mapred/lib/aggregate/ValueAggregatorBaseDescriptor.html#line.34"><B>ValueAggregatorBaseDescriptor</B></A>()</PRE>
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<A NAME="generateEntry(java.lang.String, java.lang.String, org.apache.hadoop.io.Text)"><!-- --></A><H3>
generateEntry</H3>
<PRE>
public static <A HREF="http://download.oracle.com/javase/6/docs/api/java/util/Map.Entry.html?is-external=true" title="class or interface in java.util">Map.Entry</A>&lt;<A HREF="../../../../../../org/apache/hadoop/io/Text.html" title="class in org.apache.hadoop.io">Text</A>,<A HREF="../../../../../../org/apache/hadoop/io/Text.html" title="class in org.apache.hadoop.io">Text</A>&gt; <A HREF="../../../../../../src-html/org/apache/hadoop/mapred/lib/aggregate/ValueAggregatorBaseDescriptor.html#line.72"><B>generateEntry</B></A>(<A HREF="http://download.oracle.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A>&nbsp;type,
                                                 <A HREF="http://download.oracle.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A>&nbsp;id,
                                                 <A HREF="../../../../../../org/apache/hadoop/io/Text.html" title="class in org.apache.hadoop.io">Text</A>&nbsp;val)</PRE>
<DL>
<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>type</CODE> - the aggregation type<DD><CODE>id</CODE> - the aggregation id<DD><CODE>val</CODE> - the val associated with the id to be aggregated
<DT><B>Returns:</B><DD>an Entry whose key is the aggregation id prefixed with 
 the aggregation type.</DL>
</DD>
</DL>
<HR>

<A NAME="generateValueAggregator(java.lang.String)"><!-- --></A><H3>
generateValueAggregator</H3>
<PRE>
public static <A HREF="../../../../../../org/apache/hadoop/mapred/lib/aggregate/ValueAggregator.html" title="interface in org.apache.hadoop.mapred.lib.aggregate">ValueAggregator</A> <A HREF="../../../../../../src-html/org/apache/hadoop/mapred/lib/aggregate/ValueAggregatorBaseDescriptor.html#line.82"><B>generateValueAggregator</B></A>(<A HREF="http://download.oracle.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A>&nbsp;type)</PRE>
<DL>
<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>type</CODE> - the aggregation type
<DT><B>Returns:</B><DD>a value aggregator of the given type.</DL>
</DD>
</DL>
<HR>

<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/ValueAggregatorBaseDescriptor.html#line.109"><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>get the input file name.
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>job</CODE> - a job configuration object</DL>
</DD>
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