io.smallrye.mutiny.groups

Class UniMemoize<T>

java.lang.Object

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

@Experimental(value="Memoization is an experimental feature at this stage")
public class UniMemoize<T>
extends Object

Constructor Summary

Constructors

Constructor and Description
UniMemoize(AbstractUni<T> upstream)

Method Summary

Modifier and Type	Method and Description
Uni<T>	atLeast(Duration duration) Memoize the received item or failure for a duration after the upstream subscription has been received.
Uni<T>	indefinitely() Memoize the received item or failure indefinitely.
Uni<T>	until(BooleanSupplier invalidationGuard) Memoize the received item or failure as long as the provided boolean supplier evaluates to false.

Methods inherited from class java.lang.Object

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

Constructor Detail

UniMemoize

public UniMemoize(AbstractUni<T> upstream)

Method Detail

until

public Uni<T> until(BooleanSupplier invalidationGuard)

Memoize the received item or failure as long as the provided boolean supplier evaluates to false.

New subscribers will receive the memoized item or failure. When the boolean supplier evaluates to true then a new upstream subscription happens and the next subscribers get a chance to observe new values.

API Note:

This is an experimental API

Parameters:

invalidationGuard - the invalidation guard, which evaluates to false for as long as the item or failure must be memoized, must not be null

Returns:

a new Uni

atLeast

public Uni<T> atLeast(Duration duration)

Memoize the received item or failure for a duration after the upstream subscription has been received.

New subscribers will receive the memoized item or failure. When duration has elapsed then the first subscription causes a new upstream subscription, and the next subscribers get a chance to observe new values.

API Note:

This is an experimental API

Parameters:

duration - the memoization duration after having received the subscription from upstream, must not be null, must be strictly positive

Returns:

a new Uni

indefinitely

public Uni<T> indefinitely()

Memoize the received item or failure indefinitely.

API Note:

This is an experimental API

Returns:

a new Uni