org.openimaj.hadoop.sequencefile.combine

Class CombineSequenceFileRecordReader<K,V>

java.lang.Object

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

org.openimaj.hadoop.sequencefile.combine.CombineSequenceFileRecordReader<K,V>

Type Parameters:

K - Key type

V - Value type

All Implemented Interfaces:

Closeable, AutoCloseable

public class CombineSequenceFileRecordReader<K,V>
extends org.apache.hadoop.mapreduce.RecordReader<K,V>

Proxy RecordReader that CombineFileRecordReader can instantiate, which itself translates a CombineFileSplit into a FileSplit.

Constructor Summary

Constructors

Constructor and Description
CombineSequenceFileRecordReader(org.apache.hadoop.mapreduce.lib.input.CombineFileSplit split, org.apache.hadoop.mapreduce.TaskAttemptContext context, Integer index)

Method Summary

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

Methods inherited from class java.lang.Object

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

Constructor Detail

CombineSequenceFileRecordReader

public CombineSequenceFileRecordReader(org.apache.hadoop.mapreduce.lib.input.CombineFileSplit split,
                                       org.apache.hadoop.mapreduce.TaskAttemptContext context,
                                       Integer index)
                                throws IOException,
                                       InterruptedException

Throws:

IOException

InterruptedException

Method Detail

initialize

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

Specified by:

initialize 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

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

nextKeyValue

public boolean nextKeyValue()
                     throws IOException,
                            InterruptedException

Specified by:

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

Throws:

IOException

InterruptedException