Interface ListenerContainerIF

    • Method Summary

      All Methods Instance Methods Abstract Methods 
      Modifier and Type Method Description
      void addListener​(java.lang.Object listener)
      Add a listener to this container.
      boolean isEmpty()
      Get wether this container is empty or not.
      boolean removeListener​(java.lang.Object listener)
      Remove a listener from this container.
    • Method Detail

      • addListener

        void addListener​(java.lang.Object listener)
        Add a listener to this container.
        Parameters:
        listener - the listener to add.
      • removeListener

        boolean removeListener​(java.lang.Object listener)
        Remove a listener from this container.
        Parameters:
        listener - the listener to be removed.
        Returns:
        wether the listnener was found and removed or not.
      • isEmpty

        boolean isEmpty()
        Get wether this container is empty or not.
        Returns:
        wether this container is empty or not.