weka.distributed.hadoop

Class DenormalizeHadoopMapper

java.lang.Object

org.apache.hadoop.mapreduce.Mapper<org.apache.hadoop.io.LongWritable,org.apache.hadoop.io.Text,org.apache.hadoop.io.LongWritable,org.apache.hadoop.io.Text>

weka.distributed.hadoop.DenormalizeHadoopMapper

public class DenormalizeHadoopMapper
extends org.apache.hadoop.mapreduce.Mapper<org.apache.hadoop.io.LongWritable,org.apache.hadoop.io.Text,org.apache.hadoop.io.LongWritable,org.apache.hadoop.io.Text>

Nested Class Summary

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

org.apache.hadoop.mapreduce.Mapper.Context

Field Summary

Fields

Modifier and Type	Field and Description
static java.lang.String	DENORMALIZE_MAP_TASK_OPTIONS The key in the Configuration that the options for this task are associated with

Constructor Summary

Constructors

Constructor and Description
DenormalizeHadoopMapper()

Method Summary

Methods

Modifier and Type	Method and Description
void	map(org.apache.hadoop.io.LongWritable key, org.apache.hadoop.io.Text value, org.apache.hadoop.mapreduce.Mapper.Context context)
void	setup(org.apache.hadoop.mapreduce.Mapper.Context context)

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

run

Methods inherited from class java.lang.Object

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

Field Detail

DENORMALIZE_MAP_TASK_OPTIONS

public static final java.lang.String DENORMALIZE_MAP_TASK_OPTIONS

The key in the Configuration that the options for this task are associated with

See Also:

Constant Field Values

Constructor Detail

DenormalizeHadoopMapper

public DenormalizeHadoopMapper()

Method Detail

setup

public void setup(org.apache.hadoop.mapreduce.Mapper.Context context)
           throws java.io.IOException

Overrides:

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

Throws:

java.io.IOException

map

public void map(org.apache.hadoop.io.LongWritable key,
       org.apache.hadoop.io.Text value,
       org.apache.hadoop.mapreduce.Mapper.Context context)
         throws java.io.IOException

Overrides:

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

Throws:

java.io.IOException