ivory.lsh.projection

Class ComputeSignaturesMinhash.MyMapper

java.lang.Object

org.apache.hadoop.mapred.MapReduceBase

ivory.lsh.projection.ComputeSignaturesMinhash.MyMapper

All Implemented Interfaces:

Closeable, AutoCloseable, JobConfigurable, Mapper<IntWritable,WeightedIntDocVector,IntWritable,MinhashSignature>

Enclosing class:

ComputeSignaturesMinhash

public static class ComputeSignaturesMinhash.MyMapper
extends MapReduceBase
implements Mapper<IntWritable,WeightedIntDocVector,IntWritable,MinhashSignature>

Signatures are created in a sequence of MyMapper calls. Each call appends SIZE_OF_FILE bits to each signature, until the size reaches D.

Author:

ferhanture

Constructor Summary

Constructors

Constructor and Description
ComputeSignaturesMinhash.MyMapper()

Method Summary

Methods

Modifier and Type	Method and Description
void	configure(JobConf job)
void	map(IntWritable docno, WeightedIntDocVector docvectorIn, OutputCollector<IntWritable,MinhashSignature> 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

ComputeSignaturesMinhash.MyMapper

public ComputeSignaturesMinhash.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,
       WeightedIntDocVector docvectorIn,
       OutputCollector<IntWritable,MinhashSignature> output,
       Reporter reporter)
         throws IOException

Specified by:

map in interface Mapper<IntWritable,WeightedIntDocVector,IntWritable,MinhashSignature>

Throws:

IOException