pegasus.mapreduce.cc

Class Finalization.LargeStarMapper

java.lang.Object

org.apache.hadoop.mapreduce.Mapper<org.apache.hadoop.io.LongWritable,org.apache.hadoop.io.LongWritable,org.apache.hadoop.io.IntWritable,LongPairWritable>

pegasus.mapreduce.cc.Finalization.LargeStarMapper

Enclosing class:

Finalization

public static class Finalization.LargeStarMapper
extends org.apache.hadoop.mapreduce.Mapper<org.apache.hadoop.io.LongWritable,org.apache.hadoop.io.LongWritable,org.apache.hadoop.io.IntWritable,LongPairWritable>

Nested Class Summary

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

org.apache.hadoop.mapreduce.Mapper.Context

Constructor Summary

Constructors

Constructor and Description
LargeStarMapper()

Method Summary

Modifier and Type	Method and Description
protected void	map(org.apache.hadoop.io.LongWritable u, org.apache.hadoop.io.LongWritable v, org.apache.hadoop.mapreduce.Mapper.Context context) the map function.
protected void	setup(org.apache.hadoop.mapreduce.Mapper.Context context) setup before execution

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

cleanup, run

Methods inherited from class java.lang.Object

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

Constructor Detail

LargeStarMapper

public LargeStarMapper()

Method Detail

setup

protected void setup(org.apache.hadoop.mapreduce.Mapper.Context context)
              throws java.io.IOException,
                     java.lang.InterruptedException

setup before execution

Overrides:

setup in class org.apache.hadoop.mapreduce.Mapper<org.apache.hadoop.io.LongWritable,org.apache.hadoop.io.LongWritable,org.apache.hadoop.io.IntWritable,LongPairWritable>

Parameters:

context - hadoop context

Throws:

java.io.IOException - exception by hadoop

java.lang.InterruptedException - exception by hadoop

map

protected void map(org.apache.hadoop.io.LongWritable u,
                   org.apache.hadoop.io.LongWritable v,
                   org.apache.hadoop.mapreduce.Mapper.Context context)
            throws java.io.IOException,
                   java.lang.InterruptedException

the map function.

Overrides:

map in class org.apache.hadoop.mapreduce.Mapper<org.apache.hadoop.io.LongWritable,org.apache.hadoop.io.LongWritable,org.apache.hadoop.io.IntWritable,LongPairWritable>

Parameters:

u - source node

v - destination node

context - of hadoop

Throws:

java.io.IOException - by hadoop

java.lang.InterruptedException - by hadoop