io.smallrye.mutiny.groups

Class MultiIfEmpty<T>

java.lang.Object

io.smallrye.mutiny.groups.MultiIfEmpty<T>

public class MultiIfEmpty<T>
extends Object

Method Summary

Modifier and Type	Method and Description
Multi<T>	continueWith(Iterable<T> items) When the upstream Multi completes without having emitted items, continue with the given items.
Multi<T>	continueWith(Supplier<? extends Iterable<? extends T>> supplier) When the upstream Multi completes without having emitted items, continue with the items produced by the given Supplier.
Multi<T>	continueWith(T... items) When the upstream Multi completes without having emitted items, continue with the given items.
Multi<T>	fail() Like failWith(Throwable) but using a NoSuchElementException.
Multi<T>	failWith(Supplier<? extends Throwable> supplier) When the current Multi completes without having emitted items, a failure produced by the given Supplier is sent downstream.
Multi<T>	failWith(Throwable failure) When the current Multi completes without having emitted items, the passed failure is sent downstream.
Multi<T>	switchTo(org.reactivestreams.Publisher<? extends T> other) When the upstream Multi completes without having emitted items, it continues with the events fired by the passed Publisher / Multi.
Multi<T>	switchTo(Supplier<org.reactivestreams.Publisher<? extends T>> supplier) When the upstream Multi completes without having emitted items, it continues with the events fired by a Publisher produces with the given Supplier.
Multi<T>	switchToEmitter(Consumer<MultiEmitter<? super T>> consumer) When the upstream Multi completes without having emitted items, it continues with the events fired with the emitter passed to the consumer callback.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method Detail

failWith

public Multi<T> failWith(Throwable failure)

When the current Multi completes without having emitted items, the passed failure is sent downstream.

Parameters:

failure - the failure

Returns:

the new Multi

failWith

public Multi<T> failWith(Supplier<? extends Throwable> supplier)

When the current Multi completes without having emitted items, a failure produced by the given Supplier is sent downstream.

Parameters:

supplier - the supplier to produce the failure, must not be null, must not produce null

Returns:

the new Multi

fail

public Multi<T> fail()

Like failWith(Throwable) but using a NoSuchElementException.

Returns:

the new Multi

switchToEmitter

public Multi<T> switchToEmitter(Consumer<MultiEmitter<? super T>> consumer)

When the upstream Multi completes without having emitted items, it continues with the events fired with the emitter passed to the consumer callback.

If the upstream Multi fails, the switch does not apply.

Parameters:

consumer - the callback receiving the emitter to fire the events. Must not be null. Throwing exception in this function propagates a failure downstream.

Returns:

the new Multi

switchTo

public Multi<T> switchTo(org.reactivestreams.Publisher<? extends T> other)

When the upstream Multi completes without having emitted items, it continues with the events fired by the passed Publisher / Multi.

If the upstream Multi fails, the switch does not apply.

Parameters:

other - the stream to switch to when the upstream completes.

Returns:

the new Multi

switchTo

public Multi<T> switchTo(Supplier<org.reactivestreams.Publisher<? extends T>> supplier)

When the upstream Multi completes without having emitted items, it continues with the events fired by a Publisher produces with the given Supplier.

Parameters:

supplier - the supplier to use to produce the publisher, must not be null, must not return nulls

Returns:

the new Uni

continueWith

@SafeVarargs
public final Multi<T> continueWith(T... items)

When the upstream Multi completes without having emitted items, continue with the given items.

Parameters:

items - the items, must not be null, must not contain null

Returns:

the new Multi

continueWith

public Multi<T> continueWith(Iterable<T> items)

When the upstream Multi completes without having emitted items, continue with the given items.

Parameters:

items - the items, must not be null, must not contain null

Returns:

the new Multi

continueWith

public Multi<T> continueWith(Supplier<? extends Iterable<? extends T>> supplier)

When the upstream Multi completes without having emitted items, continue with the items produced by the given Supplier.

Parameters:

supplier - the supplier to produce the items, must not be null, must not produce null

Returns:

the new Multi