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Type Parameters:

T - the type of item the Observer expects to observe

All Known Subinterfaces:

AssertableSubscriber<T>,Emitter<T>

All Known Implementing Classes:

AsyncSubject,BehaviorSubject,PublishSubject,ReplaySubject,SafeSubscriber,SerializedObserver,SerializedSubject,SerializedSubscriber,Subject,Subscriber,TestObserver,TestSubject,TestSubscriber,UnicastSubject

public interfaceObserver<T>

See Also:

ReactiveX documentation: Observable

• Method Summary

  All Methods Instance Methods Abstract Methods 

  Modifier and Type	Method and Description
  void	onCompleted() Notifies the Observer that theObservable has finished sending push-based notifications.
  void	onError(java.lang.Throwable e) Notifies the Observer that theObservable has experienced an error condition.
  void	onNext(T t) Provides the Observer with a new item to observe.

• Method Detail

  • onCompleted

    void onCompleted()

    Notifies the Observer that theObservable has finished sending push-based notifications.

    TheObservable will not call this method if it callsonError(java.lang.Throwable).

  • onError

    void onError(java.lang.Throwable e)

    Notifies the Observer that theObservable has experienced an error condition.

    If theObservable calls this method, it will not thereafter callonNext(T) oronCompleted().

    Parameters:

    e - the exception encountered by the Observable

  • onNext

    void onNext(T t)

    Provides the Observer with a new item to observe.

    TheObservable may call this method 0 or more times.

    TheObservable will not call this method again after it calls eitheronCompleted() oronError(java.lang.Throwable).

    Parameters:

    t - the item emitted by the Observable