org.apache.pig
Class FileInputLoadFunc

java.lang.Object
  org.apache.pig.LoadFunc
      org.apache.pig.FileInputLoadFunc

All Implemented Interfaces:

OrderedLoadFunc

Direct Known Subclasses:

AllLoader, AvroStorage, BinStorage, CSVLoader, HiveColumnarLoader, InterStorage, PigStorage, SequenceFileLoader, TFileStorage

@InterfaceAudience.Public
@InterfaceStability.Evolving
public abstract class FileInputLoadFunc
extends LoadFunc
implements OrderedLoadFunc

This class provides an implementation of OrderedLoadFunc interface which can be optionally re-used by LoadFuncs that use FileInputFormat, by having this as a super class

Since:

Pig 0.7

Constructor Summary

FileInputLoadFunc()

Method Summary

org.apache.hadoop.io.WritableComparable<?>

getSplitComparable(org.apache.hadoop.mapreduce.InputSplit split) The WritableComparable object returned will be used to compare the position of different splits in an ordered stream

Methods inherited from class org.apache.pig.LoadFunc

getAbsolutePath, getInputFormat, getLoadCaster, getNext, getPathStrings, join, prepareToRead, relativeToAbsolutePath, setLocation, setUDFContextSignature

Methods inherited from class java.lang.Object

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

Constructor Detail

FileInputLoadFunc

public FileInputLoadFunc()

Method Detail

getSplitComparable

public org.apache.hadoop.io.WritableComparable<?> getSplitComparable(org.apache.hadoop.mapreduce.InputSplit split)
                                                              throws IOException

Description copied from interface: OrderedLoadFunc

The WritableComparable object returned will be used to compare the position of different splits in an ordered stream

Specified by:

getSplitComparable in interface OrderedLoadFunc

Parameters:

split - An InputSplit from the InputFormat underlying this loader.

Returns:

WritableComparable representing the position of the split in input

Throws:

IOException