Beispiel #1
0
        /// <summary>
        /// Returns an
        /// <see cref="IEventRegistry">IEventRegistry</see>
        /// for registering events with the specified container.
        /// </summary>
        public static IEventRegistry ForObjectContainer(IObjectContainer objectContainer)
        {
            if (null == objectContainer)
            {
                throw new ArgumentNullException();
            }
            IInternalObjectContainer container = ((IInternalObjectContainer)objectContainer);
            ICallbacks callbacks = container.Callbacks();

            if (callbacks is IEventRegistry)
            {
                return((IEventRegistry)callbacks);
            }
            if (callbacks is NullCallbacks)
            {
                EventRegistryImpl impl = container.NewEventRegistry();
                container.Callbacks(impl);
                return(impl);
            }
            // TODO: create a MulticastingCallbacks and register both
            // the current one and the new one
            throw new ArgumentException();
        }