e11. Listening for a Property Change Event
A property change event is fired when a bound property is changed.
// Register for property change events on the bean
bean.addPropertyChangeListener(new MyPropertyChangeListener());
class MyPropertyChangeListener implements PropertyChangeListener {
// This method is called every time the property value is changed
public void propertyChange(PropertyChangeEvent evt) {
// Get the old value of the property
Object oldValue = evt.getOldValue();
// Get the new value of the property
Object newValue = evt.getNewValue();
}
}
e12.
Listening for a Vetoable Property Change Event
© 2002 Addison-Wesley.
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