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Please note that this translation of the specification is the result of a java.net community project ( https://jdk5-api-pt-br.dev.java.net/ ). The official version of the specification is the US English language version which can be found at http://java.sun.com/j2se/1.5.0/docs/api/. In case of disputes, the authoritative version of the specification is the original, English document.

java.beans
Interface VetoableChangeListener

All Superinterfaces:

EventListener

All Known Implementing Classes:

BeanContextServicesSupport, BeanContextSupport, VetoableChangeListenerProxy

public interface VetoableChangeListener
extends EventListener

A VetoableChange event gets fired whenever a bean changes a "constrained" property. You can register a VetoableChangeListener with a source bean so as to be notified of any constrained property updates.

Method Summary

void	vetoableChange(PropertyChangeEvent evt) This method gets called when a constrained property is changed.

Method Detail

vetoableChange

void vetoableChange(PropertyChangeEvent evt)
                    throws PropertyVetoException

This method gets called when a constrained property is changed.

Parameters:

evt - a PropertyChangeEvent object describing the event source and the property that has changed.

Throws:

PropertyVetoException - if the recipient wishes the property change to be rolled back.