org.apache.hadoop.mapreduce.lib.map

Class WrappedMapper<KEYIN,VALUEIN,KEYOUT,VALUEOUT>

java.lang.Object

org.apache.hadoop.mapreduce.Mapper<KEYIN,VALUEIN,KEYOUT,VALUEOUT>

org.apache.hadoop.mapreduce.lib.map.WrappedMapper<KEYIN,VALUEIN,KEYOUT,VALUEOUT>

@InterfaceAudience.Public
@InterfaceStability.Evolving
public class WrappedMapper<KEYIN,VALUEIN,KEYOUT,VALUEOUT>
extends Mapper<KEYIN,VALUEIN,KEYOUT,VALUEOUT>

A Mapper which wraps a given one to allow custom Mapper.Context implementations.

Constructor Summary

Constructors

Constructor and Description
WrappedMapper()

Method Summary

Methods

Modifier and Type	Method and Description
org.apache.hadoop.mapreduce.Mapper.Context	getMapContext(MapContext<KEYIN,VALUEIN,KEYOUT,VALUEOUT> mapContext) Get a wrapped Mapper.Context for custom implementations.

Methods inherited from class org.apache.hadoop.mapreduce.Mapper

cleanup, map, run, setup

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

WrappedMapper

public WrappedMapper()

Method Detail

getMapContext

public org.apache.hadoop.mapreduce.Mapper.Context getMapContext(MapContext<KEYIN,VALUEIN,KEYOUT,VALUEOUT> mapContext)

Get a wrapped Mapper.Context for custom implementations.

Parameters:

mapContext - MapContext to be wrapped

Returns:

a wrapped Mapper.Context for custom implementations