org.dishevelled.observable
Interface ObservableQueue<E>

Type Parameters:

E - queue element type

All Superinterfaces:

Collection<E>, Iterable<E>, Queue<E>

All Known Implementing Classes:

AbstractObservableQueue, ObservableQueueImpl

public interface ObservableQueue<E>
extends Queue<E>

Observable extension to the Queue interface.

Version:

$Revision$ $Date$

Author:

Michael Heuer

Method Summary

void	addQueueChangeListener(QueueChangeListener<E> l) Add the specified queue change listener.
void	addVetoableQueueChangeListener(VetoableQueueChangeListener<E> l) Add the specified vetoable queue change listener.
int	getQueueChangeListenerCount() Return the number of QueueChangeListeners registered to this observable queue.
QueueChangeListener<E>[]	getQueueChangeListeners() Return an array of all QueueChangeListeners, or an empty array if none are registered.
int	getVetoableQueueChangeListenerCount() Return the number of VetoableQueueChangeListeners registered to this observable queue.
VetoableQueueChangeListener<E>[]	getVetoableQueueChangeListeners() Return an array of all VetoableQueueChangeListeners, or an empty array if none are registered.
void	removeQueueChangeListener(QueueChangeListener<E> l) Remove the specified queue change listener.
void	removeVetoableQueueChangeListener(VetoableQueueChangeListener<E> l) Remove the specified vetoable queue change listener.

Methods inherited from interface java.util.Queue

add, element, offer, peek, poll, remove

Methods inherited from interface java.util.Collection

addAll, clear, contains, containsAll, equals, hashCode, isEmpty, iterator, remove, removeAll, retainAll, size, toArray, toArray

Method Detail

addQueueChangeListener

void addQueueChangeListener(QueueChangeListener<E> l)

Add the specified queue change listener.

Parameters:

l - queue change listener to add

removeQueueChangeListener

void removeQueueChangeListener(QueueChangeListener<E> l)

Remove the specified queue change listener.

Parameters:

l - queue change listener to remove

addVetoableQueueChangeListener

void addVetoableQueueChangeListener(VetoableQueueChangeListener<E> l)

Add the specified vetoable queue change listener.

Parameters:

l - vetoable queue change listener to add

removeVetoableQueueChangeListener

void removeVetoableQueueChangeListener(VetoableQueueChangeListener<E> l)

Remove the specified vetoable queue change listener.

Parameters:

l - vetoable queue change listener to remove

getQueueChangeListeners

QueueChangeListener<E>[] getQueueChangeListeners()

Return an array of all QueueChangeListeners, or an empty array if none are registered.

Returns:

an array of all QueueChangeListeners, or an empty array if none are registered

getQueueChangeListenerCount

int getQueueChangeListenerCount()

Return the number of QueueChangeListeners registered to this observable queue.

Returns:

the number of QueueChangeListeners registered to this observable queue

getVetoableQueueChangeListeners

VetoableQueueChangeListener<E>[] getVetoableQueueChangeListeners()

Return an array of all VetoableQueueChangeListeners, or an empty array if none are registered.

Returns:

an array of all VetoableQueueChangeListeners, or an empty array if none are registered

getVetoableQueueChangeListenerCount

int getVetoableQueueChangeListenerCount()

Return the number of VetoableQueueChangeListeners registered to this observable queue.

Returns:

the number of VetoableQueueChangeListeners registered to this observable queue