org.dishevelled.observable.event
Interface VetoableQueueChangeListener<E>

Type Parameters:

E - queue element type

All Superinterfaces:

EventListener

public interface VetoableQueueChangeListener<E>
extends EventListener

A listener that receives notification of vetoable changes about to be made to an observable queue.

Version:

$Revision$ $Date$

Author:

Michael Heuer

Method Summary

void	queueWillChange(VetoableQueueChangeEvent<E> e) Notify this listener that a vetoable change is about to be made to the observable queue.

Method Detail

queueWillChange

void queueWillChange(VetoableQueueChangeEvent<E> e)
                     throws QueueChangeVetoException

Notify this listener that a vetoable change is about to be made to the observable queue.

Parameters:

e - vetoable queue change event

Throws:

QueueChangeVetoException - if this listener wishes the change about to be made to be rolled back