Module io.smallrye.mutiny

Package io.smallrye.mutiny.subscription

Interface MultiSubscriber<T>

Type Parameters:

T - the type of item.

All Superinterfaces:

Flow.Subscriber<T>

All Known Subinterfaces:

CancellableSubscriber<T>

All Known Implementing Classes:

AssertSubscriber, MultiSubscriberAdapter, SerializedSubscriber, Subscribers.CallbackBasedSubscriber, SwitchableSubscriptionSubscriber

public interface MultiSubscriber<T>
extends Flow.Subscriber<T>

A Flow.Subscriber receiving calls to Flow.Subscriber.onSubscribe(Subscription) once after passing an instance of Flow.Subscriber to Flow.Publisher.subscribe(Subscriber).

No further events will be received until Flow.Subscription.request(long) is called.

After signaling demand:

• One or more invocations of onItem(Object) up to the maximum number defined by Flow.Subscription.request(long)
• Single invocation of onFailure(Throwable) or onCompletion() which signals a terminal state after which no further events will be sent.

Demand can be signaled via Flow.Subscription.request(long) whenever the Flow.Subscriber instance is capable of handling more.

This interface bridges the Mutiny model and the Reactive Streams model.

Method Summary

Modifier and Type	Method	Description
default void	onComplete()	Successful terminal state.
void	onCompletion()	Method called when the upstream emits a completion terminal event.
default void	onError(Throwable t)	Failed terminal state.
void	onFailure(Throwable failure)	Method called when the upstream emits a failure terminal event.
void	onItem(T item)	Method called when the upstream emits an item event, in response to to requests to Flow.Subscription.request(long).
default void	onNext(T t)	Data notification sent by the Flow.Publisher in response to requests to Flow.Subscription.request(long).

Methods inherited from interface java.util.concurrent.Flow.Subscriber

onSubscribe

Method Details

onItem

void onItem(T item)

Method called when the upstream emits an item event, in response to to requests to Flow.Subscription.request(long).

Parameters:

item - the item, must not be null.

onFailure

void onFailure(Throwable failure)

Method called when the upstream emits a failure terminal event.

No further events will be sent even if Flow.Subscription.request(long) is invoked again.

Parameters:

failure - the failure, must not be null.

onCompletion

void onCompletion()

Method called when the upstream emits a completion terminal event.

No further events will be sent even if Flow.Subscription.request(long) is invoked again.

onNext

default void onNext(T t)

Data notification sent by the Flow.Publisher in response to requests to Flow.Subscription.request(long). Delegates to onItem(Object)

Specified by:

onNext in interface Flow.Subscriber<T>

Parameters:

t - the element signaled

onError

default void onError(Throwable t)

Failed terminal state.

No further events will be sent even if Flow.Subscription.request(long) is invoked again. Delegates to onFailure(Throwable)

Specified by:

onError in interface Flow.Subscriber<T>

Parameters:

t - the throwable signaled

onComplete

default void onComplete()

Successful terminal state.

No further events will be sent even if Flow.Subscription.request(long) is invoked again. Delegates to onCompletion()

Specified by:

onComplete in interface Flow.Subscriber<T>