Uses of Interface
org.apache.hadoop.mapreduce.lib.aggregate.ValueAggregator

Packages that use ValueAggregator
org.apache.hadoop.mapred.lib.aggregate   
org.apache.hadoop.mapreduce.lib.aggregate   
 

Uses of ValueAggregator in org.apache.hadoop.mapred.lib.aggregate
 

Subinterfaces of ValueAggregator in org.apache.hadoop.mapred.lib.aggregate
 interface ValueAggregator<E>
          This interface defines the minimal protocol for value aggregators.
 

Uses of ValueAggregator in org.apache.hadoop.mapreduce.lib.aggregate
 

Classes in org.apache.hadoop.mapreduce.lib.aggregate that implement ValueAggregator
 class DoubleValueSum
          This class implements a value aggregator that sums up a sequence of double values.
 class LongValueMax
          This class implements a value aggregator that maintain the maximum of a sequence of long values.
 class LongValueMin
          This class implements a value aggregator that maintain the minimum of a sequence of long values.
 class LongValueSum
          This class implements a value aggregator that sums up a sequence of long values.
 class StringValueMax
          This class implements a value aggregator that maintain the biggest of a sequence of strings.
 class StringValueMin
          This class implements a value aggregator that maintain the smallest of a sequence of strings.
 class UniqValueCount
          This class implements a value aggregator that dedupes a sequence of objects.
 class ValueHistogram
          This class implements a value aggregator that computes the histogram of a sequence of strings.
 

Methods in org.apache.hadoop.mapreduce.lib.aggregate that return ValueAggregator
static ValueAggregator ValueAggregatorBaseDescriptor.generateValueAggregator(String type, long uniqCount)
           
 



Copyright © 2014 Apache Software Foundation. All Rights Reserved.