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public interface DerivedPropertyNotifier
Used to observe and filter for model changes that affect derived properties
defined by OCL expression. Construct an instance for a single
EStructuralFeature
or all properties of an EPackage
and
subscribe
for change notifications at an
EventManager
. When changes affecting a derived property's value are
received, the actual changes are determined, and new Notification
s
are created for those objects on which the derived property's value did
change.
Method Summary | |
---|---|
void |
subscribe(EventManager eventManager)
Activates the services of this notifier for the scope observed by the eventManager . |
void |
unsubscribe(EventManager eventManager)
Deactivates this notifier by unregistering all its internal adapters from the eventManager again. |
Method Detail |
---|
void subscribe(EventManager eventManager)
eventManager
.
If the event manager is set inactive
, no notifications
are created by this notifier until the event manager is activated again.
void unsubscribe(EventManager eventManager)
eventManager
again.
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