Facade

Constructor.

This IFacade implementation is a Singleton, so you should not call the constructor directly, but instead call the static Singleton Factory method, passing the closure that returns the IFacade implementation. Facade.getInstance() { Facade() }

@throws Error Error if Singleton instance has already been constructed

Initialize the Singleton Facade instance.

Called automatically by the constructor. Override in your subclass to do any subclass specific initializations. Be sure to call super.initializeFacade(), though.

Facade Singleton Factory method

Initialize the Controller.

Called by the initializeFacade method. Override this method in your subclass of Facade if one or both of the following are true:

• You wish to initialize a different IController.
• You have Commands to register with the Controller at startup.

If you don’t want to initialize a different IController, call super.initializeController() at the beginning of your method, then register Commands.

Initialize the Model.

Called by the initializeFacade method. Override this method in your subclass of Facade if one or both of the following are true:

• You wish to initialize a different IModel.
• You have Proxys to register with the Model that do not retrieve a reference to the Facade at construction time.

If you don’t want to initialize a different IModel, call super.initializeModel() at the beginning of your method, then register Proxys.

Note: This method is rarely overridden; in practice you are more likely to use a Command to create and register Proxys with the Model, since Proxys with mutable data will likely need to send INotifications and thus will likely want to fetch a reference to the Facade during their construction.

Initialize the View.

Called by the initializeFacade method. Override this method in your subclass of Facade if one or both of the following are true:

• You wish to initialize a different IView.
• You have Observers to register with the View

If you don’t want to initialize a different IView, call super.initializeView() at the beginning of your method, then register IMediator instances.

Note: This method is rarely overridden; in practice you are more likely to use a Command to create and register Mediators with the View, since IMediator instances will need to send INotifications and thus will likely want to fetch a reference to the Facade during their construction.

Register an ICommand with the Controller by Notification name.

Check if a Command is registered for a given Notification

Remove a previously registered ICommand to INotification mapping from the Controller.

Register an IProxy with the Model by name.

Retrieve an IProxy from the Model by name.

Check if a Proxy is registered

Remove an IProxy from the Model by name.

Register a IMediator with the View.

Retrieve an IMediator from the View.

Check if a Mediator is registered or not

Remove an IMediator from the View.

Notify Observers.

This method is left public mostly for backward compatibility, and to allow you to send custom notification classes using the facade.

Usually you should just call sendNotification and pass the parameters, never having to construct the notification yourself.

Create and send an INotification.

Keeps us from having to construct new notification instances in our implementation code.

Create and send an INotification.

Keeps us from having to construct new notification instances in our implementation code.

Notify Observers.

This method is left public mostly for backward compatibility, and to allow you to send custom notification classes using the facade.

Usually you should just call sendNotification and pass the parameters, never having to construct the notification yourself.