org.apache.mahout.vectorizer.term

Class TermDocumentCountMapper

java.lang.Object

org.apache.hadoop.mapreduce.Mapper<org.apache.hadoop.io.WritableComparable<?>,VectorWritable,org.apache.hadoop.io.IntWritable,org.apache.hadoop.io.LongWritable>

org.apache.mahout.vectorizer.term.TermDocumentCountMapper

public class TermDocumentCountMapper
extends org.apache.hadoop.mapreduce.Mapper<org.apache.hadoop.io.WritableComparable<?>,VectorWritable,org.apache.hadoop.io.IntWritable,org.apache.hadoop.io.LongWritable>

TextVectorizer Document Frequency Count Mapper. Outputs 1 for each feature

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
TermDocumentCountMapper()

Method Summary

Modifier and Type	Method and Description
protected void	map(org.apache.hadoop.io.WritableComparable<?> key, VectorWritable 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

TermDocumentCountMapper

public TermDocumentCountMapper()

Method Detail

map

protected void map(org.apache.hadoop.io.WritableComparable<?> key,
                   VectorWritable value,
                   org.apache.hadoop.mapreduce.Mapper.Context context)
            throws IOException,
                   InterruptedException

Overrides:

map in class org.apache.hadoop.mapreduce.Mapper<org.apache.hadoop.io.WritableComparable<?>,VectorWritable,org.apache.hadoop.io.IntWritable,org.apache.hadoop.io.LongWritable>

Throws:

IOException

InterruptedException