Package org.reactivestreams
Interface Subscriber<T>
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- Type Parameters:
- T- the type of element signaled.
 - All Known Subinterfaces:
- Processor<T,R>
 
 public interface Subscriber<T> Will receive call toonSubscribe(Subscription)once after passing an instance ofSubscribertoPublisher.subscribe(Subscriber).No further notifications will be received until Subscription.request(long)is called.After signaling demand: - One or more invocations of onNext(Object)up to the maximum number defined bySubscription.request(long)
- Single invocation of onError(Throwable)oronComplete()which signals a terminal state after which no further events will be sent.
 Demand can be signaled via Subscription.request(long)whenever theSubscriberinstance is capable of handling more.
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Method SummaryAll Methods Instance Methods Abstract Methods Modifier and Type Method Description voidonComplete()Successful terminal state.voidonError(java.lang.Throwable t)Failed terminal state.voidonNext(T t)Data notification sent by thePublisherin response to requests toSubscription.request(long).voidonSubscribe(Subscription s)Invoked after callingPublisher.subscribe(Subscriber).
 
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Method Detail- 
onSubscribevoid onSubscribe(Subscription s) Invoked after callingPublisher.subscribe(Subscriber).No data will start flowing until Subscription.request(long)is invoked.It is the responsibility of this Subscriberinstance to callSubscription.request(long)whenever more data is wanted.The Publisherwill send notifications only in response toSubscription.request(long).- Parameters:
- s-- Subscriptionthat allows requesting data via- Subscription.request(long)
 
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onNextvoid onNext(T t) Data notification sent by thePublisherin response to requests toSubscription.request(long).- Parameters:
- t- the element signaled
 
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onErrorvoid onError(java.lang.Throwable t) Failed terminal state.No further events will be sent even if Subscription.request(long)is invoked again.- Parameters:
- t- the throwable signaled
 
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onCompletevoid onComplete() Successful terminal state.No further events will be sent even if Subscription.request(long)is invoked again.
 
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