org.apache.hadoop.mapreduce.lib.reduce
Class WrappedReducer<KEYIN,VALUEIN,KEYOUT,VALUEOUT>
java.lang.Object
org.apache.hadoop.mapreduce.Reducer<KEYIN,VALUEIN,KEYOUT,VALUEOUT>
org.apache.hadoop.mapreduce.lib.reduce.WrappedReducer<KEYIN,VALUEIN,KEYOUT,VALUEOUT>
@InterfaceAudience.Public
@InterfaceStability.Evolving
public class WrappedReducer<KEYIN,VALUEIN,KEYOUT,VALUEOUT>
- extends Reducer<KEYIN,VALUEIN,KEYOUT,VALUEOUT>
A Reducer
which wraps a given one to allow for custom
WrappedReducer.Context
implementations.
Methods inherited from class java.lang.Object |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
WrappedReducer
public WrappedReducer()
getReducerContext
public org.apache.hadoop.mapreduce.Reducer.Context getReducerContext(ReduceContext<KEYIN,VALUEIN,KEYOUT,VALUEOUT> reduceContext)
- A a wrapped
WrappedReducer.Context
for custom implementations.
- Parameters:
reduceContext
- ReduceContext
to be wrapped
- Returns:
- a wrapped
Reducer.Context
for custom implementations
Copyright © 2014 Apache Software Foundation. All Rights Reserved.