org.apache.mahout.classifier.df.mapreduce.inmem

Class InMemMapper

java.lang.Object

org.apache.hadoop.mapreduce.Mapper<KEYIN,VALUEIN,KEYOUT,VALUEOUT>

org.apache.mahout.classifier.df.mapreduce.MapredMapper<org.apache.hadoop.io.IntWritable,org.apache.hadoop.io.NullWritable,org.apache.hadoop.io.IntWritable,MapredOutput>

org.apache.mahout.classifier.df.mapreduce.inmem.InMemMapper

Deprecated.

@Deprecated
public class InMemMapper
extends MapredMapper<org.apache.hadoop.io.IntWritable,org.apache.hadoop.io.NullWritable,org.apache.hadoop.io.IntWritable,MapredOutput>

In-memory mapper that grows the trees using a full copy of the data loaded in-memory. The number of trees to grow is determined by the current InMemInputSplit.

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
InMemMapper() Deprecated.

Method Summary

Modifier and Type	Method and Description
protected void	map(org.apache.hadoop.io.IntWritable key, org.apache.hadoop.io.NullWritable value, org.apache.hadoop.mapreduce.Mapper.Context context) Deprecated.
protected void	setup(org.apache.hadoop.mapreduce.Mapper.Context context) Deprecated.

Methods inherited from class org.apache.mahout.classifier.df.mapreduce.MapredMapper

configure, getDataset, getTreeBuilder, isOutput

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

InMemMapper

public InMemMapper()

Deprecated.

Method Detail

setup

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

Deprecated.

Overrides:

setup in class MapredMapper<org.apache.hadoop.io.IntWritable,org.apache.hadoop.io.NullWritable,org.apache.hadoop.io.IntWritable,MapredOutput>

Throws:

IOException

InterruptedException

map

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

Deprecated.

Overrides:

map in class org.apache.hadoop.mapreduce.Mapper<org.apache.hadoop.io.IntWritable,org.apache.hadoop.io.NullWritable,org.apache.hadoop.io.IntWritable,MapredOutput>

Throws:

IOException

InterruptedException