Interface Observable

    • Method Detail

      • register

        void register​(AstObserver observer)
        Register an observer.
      • unregister

        void unregister​(AstObserver observer)
        Unregister an observer. If the given observer was not registered there are no effects.
      • isRegistered

        boolean isRegistered​(AstObserver observer)
        Was this observer registered? Note that equals is used to determine if the given observer was registered.