org.apache.mahout.vectorizer

Class EncodingMapper

java.lang.Object

org.apache.hadoop.mapreduce.Mapper<org.apache.hadoop.io.Text,org.apache.hadoop.io.Text,org.apache.hadoop.io.Text,VectorWritable>

org.apache.mahout.vectorizer.EncodingMapper

public class EncodingMapper
extends org.apache.hadoop.mapreduce.Mapper<org.apache.hadoop.io.Text,org.apache.hadoop.io.Text,org.apache.hadoop.io.Text,VectorWritable>

The Mapper that does the work of encoding text

Nested Class Summary

Nested classes/interfaces inherited from class org.apache.hadoop.mapreduce.Mapper

org.apache.hadoop.mapreduce.Mapper.Context

Field Summary

Fields

Modifier and Type	Field and Description
static String	ANALYZER_NAME
static String	CARDINALITY
static String	ENCODER_CLASS
static String	ENCODER_FIELD_NAME
static String	USE_NAMED_VECTORS
static String	USE_SEQUENTIAL

Constructor Summary

Constructors

Constructor and Description
EncodingMapper()

Method Summary

Modifier and Type	Method and Description
protected void	map(org.apache.hadoop.io.Text key, org.apache.hadoop.io.Text 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

Field Detail

USE_NAMED_VECTORS

public static final String USE_NAMED_VECTORS

See Also:

Constant Field Values

USE_SEQUENTIAL

public static final String USE_SEQUENTIAL

See Also:

Constant Field Values

ANALYZER_NAME

public static final String ANALYZER_NAME

See Also:

Constant Field Values

ENCODER_FIELD_NAME

public static final String ENCODER_FIELD_NAME

See Also:

Constant Field Values

ENCODER_CLASS

public static final String ENCODER_CLASS

See Also:

Constant Field Values

CARDINALITY

public static final String CARDINALITY

See Also:

Constant Field Values

Constructor Detail

EncodingMapper

public EncodingMapper()

Method Detail

setup

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

Overrides:

setup in class org.apache.hadoop.mapreduce.Mapper<org.apache.hadoop.io.Text,org.apache.hadoop.io.Text,org.apache.hadoop.io.Text,VectorWritable>

Throws:

IOException

InterruptedException

map

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

Overrides:

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

Throws:

IOException

InterruptedException