Module javafx.base

Class ObservableArrayBase<T extends ObservableArray<T>>

    • Constructor Detail

      • ObservableArrayBase

        public ObservableArrayBase()
    • Method Detail

      • addListener

        public final void addListener​(InvalidationListener listener)
        Description copied from interface: Observable
        Adds an InvalidationListener which will be notified whenever the Observable becomes invalid. If the same listener is added more than once, then it will be notified more than once. That is, no check is made to ensure uniqueness.

        Note that the same actual InvalidationListener instance may be safely registered for different Observables.

        The Observable stores a strong reference to the listener which will prevent the listener from being garbage collected and may result in a memory leak. It is recommended to either unregister a listener by calling removeListener after use or to use an instance of WeakInvalidationListener avoid this situation.

        Specified by:
        addListener in interface Observable
        listener - The listener to register
        See Also:
      • removeListener

        public final void removeListener​(InvalidationListener listener)
        Description copied from interface: Observable
        Removes the given listener from the list of listeners, that are notified whenever the value of the Observable becomes invalid.

        If the given listener has not been previously registered (i.e. it was never added) then this method call is a no-op. If it had been previously added then it will be removed. If it had been added more than once, then only the first occurrence will be removed.

        Specified by:
        removeListener in interface Observable
        listener - The listener to remove
        See Also:
      • fireChange

        protected final void fireChange​(boolean sizeChanged,
                                        int from,
                                        int to)
        Notifies all listeners of a change
        sizeChanged - indicates size of array changed
        from - A beginning (inclusive) of an interval related to the change
        to - An end (exclusive) of an interval related to the change.