org.dishevelled.observable.event
Interface VetoableMapChangeListener<K,V>

Type Parameters:

K - map key type

V - map value type

All Superinterfaces:

EventListener

public interface VetoableMapChangeListener<K,V>
extends EventListener

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

Version:

$Revision$ $Date$

Author:

Michael Heuer

Method Summary

void	mapWillChange(VetoableMapChangeEvent<K,V> e) Notify this listener that a vetoable change is about to be made to the observable map.

Method Detail

mapWillChange

void mapWillChange(VetoableMapChangeEvent<K,V> e)
                   throws MapChangeVetoException

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

Parameters:

e - vetoable map change event

Throws:

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