MBMObservable

 

@interface MBMObservable : NSObject

Observable class 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 list of event types. 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
    events

    an array of event types to be subscribed to.

  • Unsubscribes an Observer to a provided list of event types. 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)unsubscribeForObserver:(nonnull id<MBMObserver>)observer
                        events:(nonnull NSArray<NSString *> *)events;

    Parameters

    observer

    an Observer
    events

    an array of event types to be unsubscribed to.

  • Unsubscribes an Observer from all events.

    Declaration

    Objective-C

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

    Parameters

    observer

    an Observer