Package 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>

@Public
@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.

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
class	org.apache.hadoop.mapreduce.lib.map.WrappedMapper.Context

Constructor Summary

Constructors

Constructor	Description
WrappedMapper()

Method Summary

Modifier and Type	Method	Description
Mapper<KEYIN,VALUEIN,KEYOUT,VALUEOUT>.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 Details

WrappedMapper

public WrappedMapper()

Method Details

getMapContext

public Mapper<KEYIN,VALUEIN,KEYOUT,VALUEOUT>.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