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:

java.io.Closeable, java.lang.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(java.lang.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(java.lang.String udfSignature)

Method Detail

initialize

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

Specified by:

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

Throws:

java.io.IOException

java.lang.InterruptedException

prepareLoadFuncForReading

public LoadFunc prepareLoadFuncForReading(PigSplit split)
                                   throws java.io.IOException

Throws:

java.io.IOException

nextKeyValue

public boolean nextKeyValue()
                     throws java.io.IOException,
                            java.lang.InterruptedException

Specified by:

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

Throws:

java.io.IOException

java.lang.InterruptedException

getCurrentKey

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

Specified by:

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

Throws:

java.io.IOException

java.lang.InterruptedException

getCurrentValue

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

Specified by:

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

Throws:

java.io.IOException

java.lang.InterruptedException

getProgress

public float getProgress()
                  throws java.io.IOException,
                         java.lang.InterruptedException

Specified by:

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

Throws:

java.io.IOException

java.lang.InterruptedException

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

Throws:

java.io.IOException