edu.umd.cloud9.mapred

Class NullInputFormat.NullRecordReader

java.lang.Object

edu.umd.cloud9.mapred.NullInputFormat.NullRecordReader

All Implemented Interfaces:

org.apache.hadoop.mapred.RecordReader<org.apache.hadoop.io.NullWritable,org.apache.hadoop.io.NullWritable>

Enclosing class:

NullInputFormat

public static class NullInputFormat.NullRecordReader
extends Object
implements org.apache.hadoop.mapred.RecordReader<org.apache.hadoop.io.NullWritable,org.apache.hadoop.io.NullWritable>

Constructor Summary

Constructors

Constructor and Description
NullInputFormat.NullRecordReader()

Method Summary

Methods

Modifier and Type	Method and Description
void	close()
org.apache.hadoop.io.NullWritable	createKey()
org.apache.hadoop.io.NullWritable	createValue()
long	getPos()
float	getProgress()
boolean	next(org.apache.hadoop.io.NullWritable key, org.apache.hadoop.io.NullWritable value)

Methods inherited from class java.lang.Object

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

Constructor Detail

NullInputFormat.NullRecordReader

public NullInputFormat.NullRecordReader()

Method Detail

next

public boolean next(org.apache.hadoop.io.NullWritable key,
           org.apache.hadoop.io.NullWritable value)
             throws IOException

Specified by:

next in interface org.apache.hadoop.mapred.RecordReader<org.apache.hadoop.io.NullWritable,org.apache.hadoop.io.NullWritable>

Throws:

IOException

createKey

public org.apache.hadoop.io.NullWritable createKey()

Specified by:

createKey in interface org.apache.hadoop.mapred.RecordReader<org.apache.hadoop.io.NullWritable,org.apache.hadoop.io.NullWritable>

createValue

public org.apache.hadoop.io.NullWritable createValue()

Specified by:

createValue in interface org.apache.hadoop.mapred.RecordReader<org.apache.hadoop.io.NullWritable,org.apache.hadoop.io.NullWritable>

getPos

public long getPos()
            throws IOException

Specified by:

getPos in interface org.apache.hadoop.mapred.RecordReader<org.apache.hadoop.io.NullWritable,org.apache.hadoop.io.NullWritable>

Throws:

IOException

getProgress

public float getProgress()
                  throws IOException

Specified by:

getProgress in interface org.apache.hadoop.mapred.RecordReader<org.apache.hadoop.io.NullWritable,org.apache.hadoop.io.NullWritable>

Throws:

IOException

close

public void close()

Specified by:

close in interface org.apache.hadoop.mapred.RecordReader<org.apache.hadoop.io.NullWritable,org.apache.hadoop.io.NullWritable>