org.apache.pig.impl.io

Class InterRecordReader

java.lang.Object

org.apache.hadoop.mapreduce.RecordReader<org.apache.hadoop.io.Text,Tuple>

org.apache.pig.impl.io.InterRecordReader

All Implemented Interfaces:

Closeable, AutoCloseable

public class InterRecordReader
extends org.apache.hadoop.mapreduce.RecordReader<org.apache.hadoop.io.Text,Tuple>

A record reader used to read data written using InterRecordWriter It uses the default InterSedes object for deserialization.

Field Summary

Fields

Modifier and Type	Field and Description
static int	RECORD_1
static int	RECORD_2
static int	RECORD_3

Constructor Summary

Constructors

Constructor and Description
InterRecordReader()

Method Summary

Methods

Modifier and Type	Method and Description
void	close()
org.apache.hadoop.io.Text	getCurrentKey()
Tuple	getCurrentValue()
float	getProgress() Get the progress within the split
void	initialize(org.apache.hadoop.mapreduce.InputSplit genericSplit, 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

Field Detail

RECORD_1

public static final int RECORD_1

See Also:

Constant Field Values

RECORD_2

public static final int RECORD_2

See Also:

Constant Field Values

RECORD_3

public static final int RECORD_3

See Also:

Constant Field Values

Constructor Detail

InterRecordReader

public InterRecordReader()

Method Detail

initialize

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

Specified by:

initialize in class org.apache.hadoop.mapreduce.RecordReader<org.apache.hadoop.io.Text,Tuple>

Throws:

IOException

nextKeyValue

public boolean nextKeyValue()
                     throws IOException

Specified by:

nextKeyValue in class org.apache.hadoop.mapreduce.RecordReader<org.apache.hadoop.io.Text,Tuple>

Throws:

IOException

getCurrentKey

public org.apache.hadoop.io.Text getCurrentKey()

Specified by:

getCurrentKey in class org.apache.hadoop.mapreduce.RecordReader<org.apache.hadoop.io.Text,Tuple>

getCurrentValue

public Tuple getCurrentValue()

Specified by:

getCurrentValue in class org.apache.hadoop.mapreduce.RecordReader<org.apache.hadoop.io.Text,Tuple>

getProgress

public float getProgress()

Get the progress within the split

Specified by:

getProgress in class org.apache.hadoop.mapreduce.RecordReader<org.apache.hadoop.io.Text,Tuple>

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.Text,Tuple>

Throws:

IOException