Class ObservableEvent

java.lang.Object
java.util.EventObject
org.eclipse.core.databinding.observable.ObservableEvent
All Implemented Interfaces:
Serializable
Direct Known Subclasses:
ChangeEvent, DisposeEvent, ListChangeEvent, MapChangeEvent, SetChangeEvent, StaleEvent, ValueChangeEvent, ValueChangingEvent

public abstract class ObservableEvent extends EventObject
Abstract event object for events fired by IObservable objects. All events fired by observables must be derived from this class so that the way of dispatching events can be improved in later versions of the framework.
Since:
1.0
See Also:
  • Constructor Details

    • ObservableEvent

      public ObservableEvent(IObservable source)
      Creates a new observable event.
      Parameters:
      source - source of this event
  • Method Details

    • getObservable

      public IObservable getObservable()
      Returns the observable that generated this event.
      Returns:
      the observable that generated this event
    • dispatch

      protected abstract void dispatch(IObservablesListener listener)
      Dispatch this event to the given listener. Subclasses must implement this method by calling the appropriate type-safe event handling method on the given listener according to the type of this event.
      Parameters:
      listener - the listener that should handle the event
    • getListenerType

      protected abstract Object getListenerType()
      Returns a unique object used for distinguishing this event type from others.
      Returns:
      a unique object representing the concrete type of this event.