MBMObservable

 

@interface MBMObservable : NSObject

The observable interface provides basic Publish&Subscribe functionality. Classes that extend this functionality and capable of generating events, have to specify event types and corresponding data format for an event.

  • Subscribes an observer to a provided array of event types. The observable will hold a strong reference to an observer instance, therefore, in order to stop receiving notifications, caller must call unsubscribe with an observer instance used for an initial subscription.

    Declaration

    Objective-C

    - (void)subscribeForObserver:(nonnull id<MBMObserver>)observer
                      events:(nonnull NSArray<NSString *> *)events;

    Parameters

    observer

    An observer that will be subscribed to a given events.
    events

    An array of event types to be subscribed to.

  • Unsubscribes an observer from a provided array of event types.

    Declaration

    Objective-C

    - (void)unsubscribeForObserver:(nonnull id<MBMObserver>)observer
                        events:(nonnull NSArray<NSString *> *)events;

    Parameters

    observer

    An observer that will be unsubscribed from a given events.
    events

    An array of event types to be unsubscribed from.

  • Unsubscribes an observer from all events.

    Declaration

    Objective-C

    - (void)unsubscribeForObserver:(nonnull id<MBMObserver>)observer;

    Parameters

    observer

    An observer that will be unsubscribed from all previously subscribed events.