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Java 2 Platform SE v1.3.1: Interface VetoableChangeListener - JDK 5 Documentation v1.3.1, Java 2 SDK 英文文档

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java.beans
Interface VetoableChangeListener

All Superinterfaces:

EventListener

All Known Implementing Classes:

BeanContextSupport

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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.

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

 

Method Detail

vetoableChange

public 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.

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