oracle.spatial.hadoop.vector.binning.mapreduce

Class BinMapper<K,V>

java.lang.Object

org.apache.hadoop.mapreduce.Mapper<K,V,org.apache.hadoop.io.LongWritable,RecordInfo>

oracle.spatial.hadoop.vector.binning.mapreduce.BinMapper<K,V>

Type Parameters:

K - The type of the input keys

V - The type of the input values

public class BinMapper<K,V>
extends org.apache.hadoop.mapreduce.Mapper<K,V,org.apache.hadoop.io.LongWritable,RecordInfo>

A subclass of Mapper that maps input records to bins. The emitted key is the bin identifier and the value is a RecordInfo containing the input record information. BinningConfig information is expected to be found in the job configuration.

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
BinMapper()

Method Summary

Modifier and Type	Method and Description
protected void	map(K key, V value, org.apache.hadoop.mapreduce.Mapper.Context context)
protected void	setup(org.apache.hadoop.mapreduce.Mapper.Context context)

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

BinMapper

public BinMapper()

Method Detail

setup

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

Overrides:

setup in class org.apache.hadoop.mapreduce.Mapper<K,V,org.apache.hadoop.io.LongWritable,RecordInfo>

Throws:

java.io.IOException

java.lang.InterruptedException

map

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

Overrides:

map in class org.apache.hadoop.mapreduce.Mapper<K,V,org.apache.hadoop.io.LongWritable,RecordInfo>

Throws:

java.io.IOException

java.lang.InterruptedException