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## Hierarchy For Package org.apache.hadoop.mapred.lib.aggregate

Package Hierarchies:
  All Packages

## Class Hierarchy

- java.lang.Object
  - org.apache.hadoop.mapred.lib.aggregate.DoubleValueSum (implements org.apache.hadoop.mapred.lib.aggregate.ValueAggregator)
  - org.apache.hadoop.mapred.lib.aggregate.LongValueMax (implements org.apache.hadoop.mapred.lib.aggregate.ValueAggregator)
  - org.apache.hadoop.mapred.lib.aggregate.LongValueMin (implements org.apache.hadoop.mapred.lib.aggregate.ValueAggregator)
  - org.apache.hadoop.mapred.lib.aggregate.LongValueSum (implements org.apache.hadoop.mapred.lib.aggregate.ValueAggregator)
  - org.apache.hadoop.mapred.lib.aggregate.StringValueMax (implements org.apache.hadoop.mapred.lib.aggregate.ValueAggregator)
  - org.apache.hadoop.mapred.lib.aggregate.StringValueMin (implements org.apache.hadoop.mapred.lib.aggregate.ValueAggregator)
  - org.apache.hadoop.mapred.lib.aggregate.UniqValueCount (implements org.apache.hadoop.mapred.lib.aggregate.ValueAggregator)
  - org.apache.hadoop.mapred.lib.aggregate.UserDefinedValueAggregatorDescriptor (implements org.apache.hadoop.mapred.lib.aggregate.ValueAggregatorDescriptor)
  - org.apache.hadoop.mapred.lib.aggregate.ValueAggregatorBaseDescriptor (implements org.apache.hadoop.mapred.lib.aggregate.ValueAggregatorDescriptor)
  - org.apache.hadoop.mapred.lib.aggregate.ValueAggregatorJob
  - org.apache.hadoop.mapred.lib.aggregate.ValueAggregatorJobBase<K1,V1> (implements org.apache.hadoop.mapred.Mapper<K1,V1,K2,V2>, org.apache.hadoop.mapred.Reducer<K2,V2,K3,V3>)
    - org.apache.hadoop.mapred.lib.aggregate.ValueAggregatorCombiner<K1,V1>
    - org.apache.hadoop.mapred.lib.aggregate.ValueAggregatorMapper<K1,V1>
    - org.apache.hadoop.mapred.lib.aggregate.ValueAggregatorReducer<K1,V1>
  - org.apache.hadoop.mapred.lib.aggregate.ValueHistogram (implements org.apache.hadoop.mapred.lib.aggregate.ValueAggregator)

## Interface Hierarchy

- org.apache.hadoop.mapred.lib.aggregate.ValueAggregator
- org.apache.hadoop.mapred.lib.aggregate.ValueAggregatorDescriptor

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