org.apache.accumulo.examples.simple.mapreduce

Class RowHash.HashDataMapper

java.lang.Object

org.apache.hadoop.mapreduce.Mapper<Key,Value,org.apache.hadoop.io.Text,Mutation>

org.apache.accumulo.examples.simple.mapreduce.RowHash.HashDataMapper

Enclosing class:

RowHash

public static class RowHash.HashDataMapper
extends org.apache.hadoop.mapreduce.Mapper<Key,Value,org.apache.hadoop.io.Text,Mutation>

The Mapper class that given a row number, will generate the appropriate output line.

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
RowHash.HashDataMapper()

Method Summary

Methods

Modifier and Type	Method and Description
void	map(Key row, Value data, org.apache.hadoop.mapreduce.Mapper.Context context)
void	setup(org.apache.hadoop.mapreduce.Mapper.Context job)

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

RowHash.HashDataMapper

public RowHash.HashDataMapper()

Method Detail

map

public void map(Key row,
       Value data,
       org.apache.hadoop.mapreduce.Mapper.Context context)
         throws IOException,
                InterruptedException

Overrides:

map in class org.apache.hadoop.mapreduce.Mapper<Key,Value,org.apache.hadoop.io.Text,Mutation>

Throws:

IOException

InterruptedException

setup

public void setup(org.apache.hadoop.mapreduce.Mapper.Context job)

Overrides:

setup in class org.apache.hadoop.mapreduce.Mapper<Key,Value,org.apache.hadoop.io.Text,Mutation>