com.asakusafw.runtime.stage.input

Class BridgeInputFormat.NullRecordReader<KEYIN,VALUEIN>

java.lang.Object

org.apache.hadoop.mapreduce.RecordReader<KEYIN,VALUEIN>

com.asakusafw.runtime.stage.input.BridgeInputFormat.NullRecordReader<KEYIN,VALUEIN>

Type Parameters:

KEYIN - the key type

VALUEIN - the value type

All Implemented Interfaces:

Closeable, AutoCloseable

Enclosing class:

BridgeInputFormat

public static final class BridgeInputFormat.NullRecordReader<KEYIN,VALUEIN>
extends org.apache.hadoop.mapreduce.RecordReader<KEYIN,VALUEIN>

Empty implementation for Hadoop RecordReader.

Constructor Summary

Constructors

Constructor and Description
NullRecordReader() Creates a new instance.

Method Summary

Modifier and Type	Method and Description
void	close()
KEYIN	getCurrentKey()
VALUEIN	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

NullRecordReader

public NullRecordReader()

Creates a new instance.

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<KEYIN,VALUEIN>

Throws:

IOException

InterruptedException

nextKeyValue

public boolean nextKeyValue()
                     throws IOException,
                            InterruptedException

Specified by:

nextKeyValue in class org.apache.hadoop.mapreduce.RecordReader<KEYIN,VALUEIN>

Throws:

IOException

InterruptedException

getCurrentKey

public KEYIN getCurrentKey()
                    throws IOException,
                           InterruptedException

Specified by:

getCurrentKey in class org.apache.hadoop.mapreduce.RecordReader<KEYIN,VALUEIN>

Throws:

IOException

InterruptedException

getCurrentValue

public VALUEIN getCurrentValue()
                        throws IOException,
                               InterruptedException

Specified by:

getCurrentValue in class org.apache.hadoop.mapreduce.RecordReader<KEYIN,VALUEIN>

Throws:

IOException

InterruptedException

getProgress

public float getProgress()
                  throws IOException,
                         InterruptedException

Specified by:

getProgress in class org.apache.hadoop.mapreduce.RecordReader<KEYIN,VALUEIN>

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<KEYIN,VALUEIN>

Throws:

IOException