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## 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.

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For further API reference and developer documentation, see Java 2 SDK SE Developer Documentation. That documentation contains more detailed, developer-targeted descriptions, with conceptual overviews, definitions of terms, workarounds, and working code examples.

Copyright 2004 Sun Microsystems, Inc. All rights reserved. Use is subject to license terms. Also see the documentation redistribution policy.