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

Class InMemInputFormat.InMemRecordReader

java.lang.Object

org.apache.hadoop.mapreduce.RecordReader<org.apache.hadoop.io.IntWritable,org.apache.hadoop.io.NullWritable>

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

All Implemented Interfaces:

Closeable, AutoCloseable

Enclosing class:

InMemInputFormat

public static class InMemInputFormat.InMemRecordReader
extends org.apache.hadoop.mapreduce.RecordReader<org.apache.hadoop.io.IntWritable,org.apache.hadoop.io.NullWritable>

Constructor Summary

Constructors

Constructor and Description
InMemRecordReader(InMemInputFormat.InMemInputSplit split)

Method Summary

Modifier and Type	Method and Description
void	close()
org.apache.hadoop.io.IntWritable	getCurrentKey()
org.apache.hadoop.io.NullWritable	getCurrentValue()
float	getProgress()
void	initialize(org.apache.hadoop.mapreduce.InputSplit arg0, org.apache.hadoop.mapreduce.TaskAttemptContext arg1)
boolean	nextKeyValue()

Methods inherited from class java.lang.Object

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

Constructor Detail

InMemRecordReader

public InMemRecordReader(InMemInputFormat.InMemInputSplit split)

Method Detail

getProgress

public float getProgress()
                  throws IOException

Specified by:

getProgress in class org.apache.hadoop.mapreduce.RecordReader<org.apache.hadoop.io.IntWritable,org.apache.hadoop.io.NullWritable>

Throws:

IOException

getCurrentKey

public org.apache.hadoop.io.IntWritable getCurrentKey()
                                               throws IOException,
                                                      InterruptedException

Specified by:

getCurrentKey in class org.apache.hadoop.mapreduce.RecordReader<org.apache.hadoop.io.IntWritable,org.apache.hadoop.io.NullWritable>

Throws:

IOException

InterruptedException

getCurrentValue

public org.apache.hadoop.io.NullWritable getCurrentValue()
                                                  throws IOException,
                                                         InterruptedException

Specified by:

getCurrentValue in class org.apache.hadoop.mapreduce.RecordReader<org.apache.hadoop.io.IntWritable,org.apache.hadoop.io.NullWritable>

Throws:

IOException

InterruptedException

initialize

public void initialize(org.apache.hadoop.mapreduce.InputSplit arg0,
                       org.apache.hadoop.mapreduce.TaskAttemptContext arg1)
                throws IOException,
                       InterruptedException

Specified by:

initialize in class org.apache.hadoop.mapreduce.RecordReader<org.apache.hadoop.io.IntWritable,org.apache.hadoop.io.NullWritable>

Throws:

IOException

InterruptedException

nextKeyValue

public boolean nextKeyValue()
                     throws IOException,
                            InterruptedException

Specified by:

nextKeyValue in class org.apache.hadoop.mapreduce.RecordReader<org.apache.hadoop.io.IntWritable,org.apache.hadoop.io.NullWritable>

Throws:

IOException

InterruptedException

close

public void close()
           throws IOException

Specified by:

close in interface Closeable

Specified by:

close in interface AutoCloseable

Specified by:

close in class org.apache.hadoop.mapreduce.RecordReader<org.apache.hadoop.io.IntWritable,org.apache.hadoop.io.NullWritable>

Throws:

IOException