de.nava.informa.utils
Class ChannelComparator

java.lang.Object
  de.nava.informa.utils.ChannelComparator

All Implemented Interfaces:

Comparator

public final class ChannelComparator
extends Object
implements Comparator

Custom comparator for ChannelIF objects. Not a traditional comparator as there are no order criteria for ChannelIF objects. However, there are three possible states: CHANNEL_MISMATCH: Two ChannelIF's objects are not equal according to their equals() method CHANNEL_IDENTICAL: Two ChannelIF's are equal according to their equals() method and contain the same ItemIF's CHANNEL_CHANGED: Two ChannelIF's are equal according to their equals() method, but contain different ItemIF's

Author:

Jonathan Krebs (Jonathan.Krebs@ngc.com)

Field Summary

static int	CHANNEL_CHANGED Channels are the same and contain the same items
static int	CHANNEL_IDENTICAL Channels are the same but contain different items
static int	CHANNEL_MISMATCH Channels are not the same

Constructor Summary

ChannelComparator()

Method Summary

int	compare(Object obj1, Object obj2)

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

CHANNEL_MISMATCH

public static final int CHANNEL_MISMATCH

Channels are not the same

See Also:

Constant Field Values

CHANNEL_IDENTICAL

public static final int CHANNEL_IDENTICAL

Channels are the same but contain different items

See Also:

Constant Field Values

CHANNEL_CHANGED

public static final int CHANNEL_CHANGED

Channels are the same and contain the same items

See Also:

Constant Field Values

Constructor Detail

ChannelComparator

public ChannelComparator()

Method Detail

compare

public int compare(Object obj1,
                   Object obj2)

Specified by:

compare in interface Comparator