co.cask.cdap.etl.batch.mapreduce

Class ETLMapReduce.ETLMapper

java.lang.Object

org.apache.hadoop.mapreduce.Mapper

co.cask.cdap.etl.batch.mapreduce.ETLMapReduce.ETLMapper

All Implemented Interfaces:

ProgramLifecycle<MapReduceTaskContext<Object,Object>>

Enclosing class:

ETLMapReduce

public static class ETLMapReduce.ETLMapper
extends Mapper
implements ProgramLifecycle<MapReduceTaskContext<Object,Object>>

Mapper Driver for ETL Transforms.

Nested Class Summary

Nested classes/interfaces inherited from class org.apache.hadoop.mapreduce.Mapper

Mapper.Context

Constructor Summary

Constructors

Constructor and Description
ETLMapReduce.ETLMapper()

Method Summary

Methods

Modifier and Type	Method and Description
void	destroy()
void	initialize(MapReduceTaskContext<Object,Object> context)
void	map(Object key, Object value, Mapper.Context context)

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

cleanup, run, setup

Methods inherited from class java.lang.Object

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

Constructor Detail

ETLMapReduce.ETLMapper

public ETLMapReduce.ETLMapper()

Method Detail

initialize

public void initialize(MapReduceTaskContext<Object,Object> context)
                throws Exception

Specified by:

initialize in interface ProgramLifecycle<MapReduceTaskContext<Object,Object>>

Throws:

Exception

map

public void map(Object key,
       Object value,
       Mapper.Context context)
         throws IOException,
                InterruptedException

Overrides:

map in class Mapper

Throws:

IOException

InterruptedException

destroy

public void destroy()

Specified by:

destroy in interface ProgramLifecycle<MapReduceTaskContext<Object,Object>>