org.infinispan.hadoop.impl

Class ConvertingRecordReader<K1,V1,K,V>

java.lang.Object

org.apache.hadoop.mapreduce.RecordReader<K,V>

org.infinispan.hadoop.impl.ConvertingRecordReader<K1,V1,K,V>

Type Parameters:

K1 - original Key type

V1 - original Value type

K - Converted Key type

V - Converted Value type

All Implemented Interfaces:

Closeable, AutoCloseable

public class ConvertingRecordReader<K1,V1,K,V>
extends org.apache.hadoop.mapreduce.RecordReader<K,V>

A decorator RecordReader capable of converting keys and values.

Since:

0.1

Author:

gustavonalle

Constructor Summary

Constructors

Constructor and Description
ConvertingRecordReader(org.apache.hadoop.mapreduce.RecordReader<K1,V1> recordReader, KeyValueConverter<K1,V1,K,V> keyValueConverter)

Method Summary

Modifier and Type	Method and Description
void	close()
K	getCurrentKey()
V	getCurrentValue()
float	getProgress()
void	initialize(org.apache.hadoop.mapreduce.InputSplit split, org.apache.hadoop.mapreduce.TaskAttemptContext context)
boolean	nextKeyValue()

Methods inherited from class java.lang.Object

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

Constructor Detail

ConvertingRecordReader

public ConvertingRecordReader(org.apache.hadoop.mapreduce.RecordReader<K1,V1> recordReader,
                              KeyValueConverter<K1,V1,K,V> keyValueConverter)

Method Detail

initialize

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

Specified by:

initialize in class org.apache.hadoop.mapreduce.RecordReader<K,V>

Throws:

IOException

InterruptedException

nextKeyValue

public boolean nextKeyValue()
                     throws IOException,
                            InterruptedException

Specified by:

nextKeyValue in class org.apache.hadoop.mapreduce.RecordReader<K,V>

Throws:

IOException

InterruptedException

getCurrentKey

public K getCurrentKey()
                throws IOException,
                       InterruptedException

Specified by:

getCurrentKey in class org.apache.hadoop.mapreduce.RecordReader<K,V>

Throws:

IOException

InterruptedException

getCurrentValue

public V getCurrentValue()
                  throws IOException,
                         InterruptedException

Specified by:

getCurrentValue in class org.apache.hadoop.mapreduce.RecordReader<K,V>

Throws:

IOException

InterruptedException

getProgress

public float getProgress()
                  throws IOException,
                         InterruptedException

Specified by:

getProgress in class org.apache.hadoop.mapreduce.RecordReader<K,V>

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<K,V>

Throws:

IOException