ivory.lsh.pwsim

Class GenerateChunkedPermutedTables.MyMapper

java.lang.Object

org.apache.hadoop.mapred.MapReduceBase

ivory.lsh.pwsim.GenerateChunkedPermutedTables.MyMapper

All Implemented Interfaces:

Closeable, AutoCloseable, JobConfigurable, Mapper<IntWritable,Signature,PairOfIntSignature,IntWritable>

Enclosing class:

GenerateChunkedPermutedTables

public static class GenerateChunkedPermutedTables.MyMapper
extends MapReduceBase
implements Mapper<IntWritable,Signature,PairOfIntSignature,IntWritable>

Author:

ferhanture Maps each signature to Q random permutations, usign the permuters stored in local cache file --> <(permno,signature),docno>

Constructor Summary

Constructors

Constructor and Description
GenerateChunkedPermutedTables.MyMapper()

Method Summary

Methods

Modifier and Type	Method and Description
void	configure(JobConf job)
void	map(IntWritable docno, Signature signature, OutputCollector<PairOfIntSignature,IntWritable> output, Reporter reporter)

Methods inherited from class org.apache.hadoop.mapred.MapReduceBase

close

Methods inherited from class java.lang.Object

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

Methods inherited from interface java.io.Closeable

close

Constructor Detail

GenerateChunkedPermutedTables.MyMapper

public GenerateChunkedPermutedTables.MyMapper()

Method Detail

configure

public void configure(JobConf job)

Specified by:

configure in interface JobConfigurable

Overrides:

configure in class MapReduceBase

map

public void map(IntWritable docno,
       Signature signature,
       OutputCollector<PairOfIntSignature,IntWritable> output,
       Reporter reporter)
         throws IOException

Specified by:

map in interface Mapper<IntWritable,Signature,PairOfIntSignature,IntWritable>

Throws:

IOException