io.smallrye.mutiny.subscription

Interface UniEmitter<T>

Type Parameters:

T - the expected type of item.

All Known Implementing Classes:

DefaultUniEmitter

public interface UniEmitter<T>

An object allowing to send signals to the downstream Uni. Uni propagates a single item event, once the first is propagated, the others events have no effect.

Method Summary

Modifier and Type	Method and Description
void	complete(T item) Emits the item event downstream with the given (potentially null) item.
void	fail(Throwable failure) Emits the failure event downstream with the given exception.
UniEmitter<T>	onTermination(Runnable onTermination) Attaches a @{code termination} event handler invoked when the downstream UniSubscription is cancelled, or when the emitter has emitted either an item or failure event.

Method Detail

complete

void complete(T item)

Emits the item event downstream with the given (potentially null) item.

Calling this method multiple times or after the fail(Throwable) method has no effect.

Parameters:

item - the item, may be null

fail

void fail(Throwable failure)

Emits the failure event downstream with the given exception.

Calling this method multiple times or after the complete(Object) method has no effect.

Parameters:

failure - the exception, must not be null

onTermination

UniEmitter<T> onTermination(Runnable onTermination)

Attaches a @{code termination} event handler invoked when the downstream UniSubscription is cancelled, or when the emitter has emitted either an item or failure event.

This method allows cleanup resources once the emitter can be disposed (has reached a terminal state).

Parameters:

onTermination - the action to run on termination, must not be null

Returns:

this emitter