jdbm.helper
Class ObjectBAComparator

java.lang.Object
  jdbm.helper.ObjectBAComparator

All Implemented Interfaces:

java.io.Serializable, java.util.Comparator

public final class ObjectBAComparator
extends java.lang.Object
implements java.util.Comparator, java.io.Serializable

Comparator for objects which have been serialized into byte arrays. In effect, it wraps another Comparator which compares object and provides transparent deserialization from byte array to object.

Version:

$Id: ObjectBAComparator.java,v 1.1 2002/05/31 06:33:20 boisvert Exp $

Author:

Alex Boisvert

See Also:

Serialized Form

Constructor Summary

ObjectBAComparator(java.util.Comparator comparator)
Construct an ObjectByteArrayComparator which wraps an Object Comparator.

Method Summary

int	compare(java.lang.Object obj1, java.lang.Object obj2) Compare two objects.
static int	compareByteArray(byte[] thisKey, byte[] otherKey) Compare two byte arrays.

Methods inherited from class java.lang.Object

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

Methods inherited from interface java.util.Comparator

equals

Constructor Detail

ObjectBAComparator

public ObjectBAComparator(java.util.Comparator comparator)

Construct an ObjectByteArrayComparator which wraps an Object Comparator.

Parameters:

comparator - Object comparator.

Method Detail

compare

public int compare(java.lang.Object obj1,
                   java.lang.Object obj2)

Compare two objects.

Specified by:

compare in interface java.util.Comparator

Parameters:

obj1 - First object

obj2 - Second object

Returns:

1 if obj1 > obj2, 0 if obj1 == obj2, -1 if obj1 < obj2

compareByteArray

public static int compareByteArray(byte[] thisKey,
                                   byte[] otherKey)

Compare two byte arrays.