org.apache.hadoop.io
Interface RawComparator<T>

Type Parameters:
T -
All Superinterfaces:
Comparator<T>
All Known Implementing Classes:
org.apache.hadoop.io.serializer.DeserializerComparator, JavaSerializationComparator, KeyFieldBasedComparator, KeyFieldBasedComparator, RecordComparator, WritableComparator

@InterfaceAudience.Public
@InterfaceStability.Stable
public interface RawComparator<T>
extends Comparator<T>

A Comparator that operates directly on byte representations of objects.

See Also:
DeserializerComparator

Method Summary
 int compare(byte[] b1, int s1, int l1, byte[] b2, int s2, int l2)
          Compare two objects in binary.
 
Methods inherited from interface java.util.Comparator
compare, equals
 

Method Detail

compare

int compare(byte[] b1,
            int s1,
            int l1,
            byte[] b2,
            int s2,
            int l2)
Compare two objects in binary. b1[s1:l1] is the first object, and b2[s2:l2] is the second object.

Parameters:
b1 - The first byte array.
s1 - The position index in b1. The object under comparison's starting index.
l1 - The length of the object in b1.
b2 - The second byte array.
s2 - The position index in b2. The object under comparison's starting index.
l2 - The length of the object under comparison in b2.
Returns:
An integer result of the comparison.


Copyright © 2012 Apache Software Foundation. All Rights Reserved.