Class Hierarchy
- java.lang.Object
- org.apache.hadoop.mapreduce.Reducer<KEYIN,
VALUEIN, KEYOUT, VALUEOUT> - org.apache.hadoop.mapreduce.lib.reduce.IntSumReducer<Key>
- org.apache.hadoop.mapreduce.lib.reduce.LongSumReducer<KEY>
- org.apache.hadoop.mapreduce.lib.reduce.WrappedReducer<KEYIN,
VALUEIN, KEYOUT, VALUEOUT>
- org.apache.hadoop.mapreduce.Reducer.Context (implements org.apache.hadoop.mapreduce.ReduceContext<KEYIN,
VALUEIN, KEYOUT, VALUEOUT>) - org.apache.hadoop.mapreduce.lib.reduce.WrappedReducer.Context
- org.apache.hadoop.mapreduce.Reducer<KEYIN,