org.apache.pig.backend.hadoop.executionengine.mapReduceLayer

Class PigLongRawComparator

java.lang.Object

org.apache.hadoop.io.WritableComparator

org.apache.pig.backend.hadoop.executionengine.mapReduceLayer.PigLongRawComparator

All Implemented Interfaces:

Comparator, org.apache.hadoop.conf.Configurable, org.apache.hadoop.io.RawComparator

Direct Known Subclasses:

PigWritableComparators.PigLongRawBytesComparator, PigWritableComparators.PigLongRawBytesPartitionComparator, PigWritableComparators.PigLongRawPartitionComparator

public class PigLongRawComparator
extends org.apache.hadoop.io.WritableComparator
implements org.apache.hadoop.conf.Configurable

Field Summary

Fields

Modifier and Type	Field and Description
protected boolean[]	mAsc
protected org.apache.commons.logging.Log	mLog
protected org.apache.hadoop.io.LongWritable.Comparator	mWrappedComp

Constructor Summary

Constructors

Constructor and Description
PigLongRawComparator()

Method Summary

Methods

Modifier and Type	Method and Description
int	compare(byte[] b1, int s1, int l1, byte[] b2, int s2, int l2) Compare two NullableIntWritables as raw bytes.
int	compare(Object o1, Object o2)
org.apache.hadoop.conf.Configuration	getConf()
void	setConf(org.apache.hadoop.conf.Configuration conf)

Methods inherited from class org.apache.hadoop.io.WritableComparator

compare, compareBytes, define, get, get, getKeyClass, hashBytes, hashBytes, newKey, readDouble, readFloat, readInt, readLong, readUnsignedShort, readVInt, readVLong

Methods inherited from class java.lang.Object

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

Methods inherited from interface java.util.Comparator

equals

Field Detail

mLog

protected final org.apache.commons.logging.Log mLog

mAsc

protected boolean[] mAsc

mWrappedComp

protected org.apache.hadoop.io.LongWritable.Comparator mWrappedComp

Constructor Detail

PigLongRawComparator

public PigLongRawComparator()

Method Detail

setConf

public void setConf(org.apache.hadoop.conf.Configuration conf)

Specified by:

setConf in interface org.apache.hadoop.conf.Configurable

Overrides:

setConf in class org.apache.hadoop.io.WritableComparator

getConf

public org.apache.hadoop.conf.Configuration getConf()

Specified by:

getConf in interface org.apache.hadoop.conf.Configurable

Overrides:

getConf in class org.apache.hadoop.io.WritableComparator

compare

public int compare(byte[] b1,
          int s1,
          int l1,
          byte[] b2,
          int s2,
          int l2)

Compare two NullableIntWritables as raw bytes. If neither are null, then IntWritable.compare() is used. If both are null then the indices are compared. Otherwise the null one is defined to be less.

Specified by:

compare in interface org.apache.hadoop.io.RawComparator

Overrides:

compare in class org.apache.hadoop.io.WritableComparator

compare

public int compare(Object o1,
          Object o2)

Specified by:

compare in interface Comparator

Overrides:

compare in class org.apache.hadoop.io.WritableComparator