Package org.apache.hadoop.contrib.utils.join

Class DataJoinJob

java.lang.Object

org.apache.hadoop.contrib.utils.join.DataJoinJob

public class DataJoinJob
extends java.lang.Object

This class implements the main function for creating a map/reduce job to join data of different sources. To create sucn a job, the user must implement a mapper class that extends DataJoinMapperBase class, and a reducer class that extends DataJoinReducerBase.

Constructor Summary

Constructors

Constructor	Description
DataJoinJob()

Method Summary

Modifier and Type	Method	Description
static org.apache.hadoop.mapred.JobConf	createDataJoinJob(java.lang.String[] args)
static java.lang.Class	getClassByName(java.lang.String className)
static void	main(java.lang.String[] args)
static boolean	runJob(org.apache.hadoop.mapred.JobConf job)	Submit/run a map/reduce job.

Methods inherited from class java.lang.Object

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

Constructor Detail

DataJoinJob

public DataJoinJob()

Method Detail

getClassByName

public static java.lang.Class getClassByName(java.lang.String className)

createDataJoinJob

public static org.apache.hadoop.mapred.JobConf createDataJoinJob(java.lang.String[] args)
                                                          throws java.io.IOException

Throws:

java.io.IOException

runJob

public static boolean runJob(org.apache.hadoop.mapred.JobConf job)
                      throws java.io.IOException

Submit/run a map/reduce job.

Parameters:

job -

Returns:

true for success

Throws:

java.io.IOException

main

public static void main(java.lang.String[] args)

Parameters:

args -