org.apache.pig.impl.io

Class TFileRecordReader

java.lang.Object

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

org.apache.pig.impl.io.TFileRecordReader

All Implemented Interfaces:

java.io.Closeable, java.lang.AutoCloseable

public class TFileRecordReader
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.

Constructor Summary

Constructors

Constructor and Description
TFileRecordReader()

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

Constructor Detail

TFileRecordReader

public TFileRecordReader()

Method Detail

initialize

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

Specified by:

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

Throws:

java.io.IOException

nextKeyValue

public boolean nextKeyValue()
                     throws java.io.IOException

Specified by:

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

Throws:

java.io.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()
                  throws java.io.IOException

Get the progress within the split

Specified by:

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

Throws:

java.io.IOException

close

public void close()
           throws java.io.IOException

Specified by:

close in interface java.io.Closeable

Specified by:

close in interface java.lang.AutoCloseable

Specified by:

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

Throws:

java.io.IOException