IMediator

public protocol IMediator : INotifier

The interface definition for a PureMVC Mediator.

In PureMVC, IMediator implementors assume these responsibilities:

  • Implement a common method which returns a list of all INotifications the IMediator has interest in.
  • Implement a notification callback method.
  • Implement methods that are called when the IMediator is registered or removed from the View.

Additionally, IMediators typically:

  • Act as an intermediary between one or more view components such as text boxes or list controls, maintaining references and coordinating their behavior.
  • In Flash-based apps, this is often the place where event listeners are added to view components, and their handlers implemented.
  • Respond to and generate INotifications, interacting with of the rest of the PureMVC app.

When an IMediator is registered with the IView, the IView will call the IMediator‘s listNotificationInterests method. The IMediator will return an Array of INotification names which it wishes to be notified about.

The IView will then create an Observer object encapsulating that IMediator’s (handleNotification) method and register it as an Observer for each INotification name returned by listNotificationInterests.

`@see org.puremvc.swift.interfaces.INotification INotification

  • Get the IMediator instance name

    Declaration

    Swift

    var name: String { get }

  • Get or set the IMediator‘s view component.

    Declaration

    Swift

    var viewComponent: AnyObject? { get set }

  • List INotification interests.

    Declaration

    Swift

    func listNotificationInterests() -> [String]

    Return Value

    an Array of the INotification names this IMediator has an interest in.

  • Handle an INotification.

    Declaration

    Swift

    func handleNotification(_ notification: INotification)

    Parameters

    notification

    the INotification to be handled

  • Called by the View when the Mediator is registered

    Declaration

    Swift

    func onRegister()

  • Called by the View when the Mediator is removed

    Declaration

    Swift

    func onRemove()