org.apache.tapestry.event
Interface ChangeObserver
- All Known Subinterfaces:
- IPageRecorder
- All Known Implementing Classes:
- PageRecorderImpl
- public interface ChangeObserver
May observe changes in an object's properties. This is a "weak" variation
on JavaBean's style bound properties. It is used when there will be at most
a single listener on property changes, and that the listener is not interested
in the old value.
- Author:
- Howard Lewis Ship
observeChange
public void observeChange(ObservedChangeEvent event)
- Sent when the observed object changes a property. The event identifies
the object, the property and the new value.