rxjava 1.3.8 · rx.Observer

Provides a mechanism for receiving push-based notifications.

After an Observer calls an Observable's subscribe method, the Observable calls the Observer's onNext method to provide notifications. A well-behaved Observable will call an Observer's onCompleted method exactly once or the Observer's onError method exactly once.

Method Summary

Modifier and Type	Method and Description
public void	onCompleted() Notifies the Observer that the `Observable` has finished sending push-based notifications.
public void	onError(Throwable the exception encountered by the Observable e) Notifies the Observer that the `Observable` has experienced an error condition.
public void	onNext(T the item emitted by the Observable t) Provides the Observer with a new item to observe.

Method Detail

onCompleted back to summary

onCompleted	back to summary
public void onCompleted() Notifies the Observer that the `Observable` has finished sending push-based notifications. The `Observable` will not call this method if it calls `onError`.

public void onCompleted()

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

The Observable will not call this method if it calls onError.

onError back to summary

onError	back to summary
public void onError(Throwable e) Notifies the Observer that the `Observable` has experienced an error condition. If the `Observable` calls this method, it will not thereafter call `onNext` or `onCompleted`. Parameters e:Throwable the exception encountered by the Observable

public void onError(Throwable e)

Notifies the Observer that the Observable has experienced an error condition.

If the Observable calls this method, it will not thereafter call onNext or onCompleted.

Parameters

e:Throwable: the exception encountered by the Observable

onNext back to summary

onNext	back to summary
public void onNext(T t) Provides the Observer with a new item to observe. The `Observable` may call this method 0 or more times. The `Observable` will not call this method again after it calls either `onCompleted` or `onError`. Parameters t:T the item emitted by the Observable

public void onNext(T t)

Provides the Observer with a new item to observe.

The Observable may call this method 0 or more times.

The Observable will not call this method again after it calls either onCompleted or onError.

Parameters

t:T: the item emitted by the Observable

public Interface Observer<T>

Method Summary

Method Detail