alluxio.examples.keyvalue.hadoop

Class CloneStoreMapReduce.CloneStoreMapper

java.lang.Object

org.apache.hadoop.mapreduce.Mapper<org.apache.hadoop.io.BytesWritable,org.apache.hadoop.io.BytesWritable,org.apache.hadoop.io.BytesWritable,org.apache.hadoop.io.BytesWritable>

alluxio.examples.keyvalue.hadoop.CloneStoreMapReduce.CloneStoreMapper

Enclosing class:

CloneStoreMapReduce

public static class CloneStoreMapReduce.CloneStoreMapper
extends org.apache.hadoop.mapreduce.Mapper<org.apache.hadoop.io.BytesWritable,org.apache.hadoop.io.BytesWritable,org.apache.hadoop.io.BytesWritable,org.apache.hadoop.io.BytesWritable>

The mapper emits all key-value pairs it receives to reducers.

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
CloneStoreMapper() Constructs a new CloneStoreMapReduce.CloneStoreMapper.

Method Summary

Modifier and Type	Method and Description
void	map(org.apache.hadoop.io.BytesWritable key, org.apache.hadoop.io.BytesWritable value, org.apache.hadoop.mapreduce.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

CloneStoreMapper

public CloneStoreMapper()

Constructs a new CloneStoreMapReduce.CloneStoreMapper.

Method Detail

map

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

Overrides:

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

Throws:

java.io.IOException

java.lang.InterruptedException