org.apache.pig.piggybank.storage

Class AllLoader.AllReader

java.lang.Object

org.apache.hadoop.mapreduce.RecordReader<org.apache.hadoop.io.Writable,org.apache.hadoop.io.Writable>

org.apache.pig.piggybank.storage.AllLoader.AllReader

All Implemented Interfaces:

Closeable, AutoCloseable

Enclosing class:

AllLoader

public static class AllLoader.AllReader
extends org.apache.hadoop.mapreduce.RecordReader<org.apache.hadoop.io.Writable,org.apache.hadoop.io.Writable>

This is where the logic is for selecting the correct Loader.

Constructor Summary

Constructors

Constructor and Description
AllReader(String udfSignature)

Method Summary

Modifier and Type	Method and Description
void	close()
org.apache.hadoop.io.Writable	getCurrentKey()
org.apache.hadoop.io.Writable	getCurrentValue()
float	getProgress()
void	initialize(org.apache.hadoop.mapreduce.InputSplit inputSplit, org.apache.hadoop.mapreduce.TaskAttemptContext taskAttemptContext)
boolean	nextKeyValue()
LoadFunc	prepareLoadFuncForReading(PigSplit split)

Methods inherited from class java.lang.Object

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

Constructor Detail

AllReader

public AllReader(String udfSignature)

Method Detail

initialize

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

Specified by:

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

Throws:

IOException

InterruptedException

prepareLoadFuncForReading

public LoadFunc prepareLoadFuncForReading(PigSplit split)
                                   throws IOException

Throws:

IOException

nextKeyValue

public boolean nextKeyValue()
                     throws IOException,
                            InterruptedException

Specified by:

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

Throws:

IOException

InterruptedException

getCurrentKey

public org.apache.hadoop.io.Writable getCurrentKey()
                                            throws IOException,
                                                   InterruptedException

Specified by:

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

Throws:

IOException

InterruptedException

getCurrentValue

public org.apache.hadoop.io.Writable getCurrentValue()
                                              throws IOException,
                                                     InterruptedException

Specified by:

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

Throws:

IOException

InterruptedException

getProgress

public float getProgress()
                  throws IOException,
                         InterruptedException

Specified by:

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

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<org.apache.hadoop.io.Writable,org.apache.hadoop.io.Writable>

Throws:

IOException