Interface FlowableOperator<Downstream, Upstream>

Type Parameters:

Downstream - the value type of the downstream

Upstream - the value type of the upstream

Functional Interface:

This is a functional interface and can therefore be used as the assignment target for a lambda expression or method reference.

@FunctionalInterface
public interface FlowableOperator<@NonNull Downstream, @NonNull Upstream>

Interface to map/wrap a downstream Flow.Subscriber to an upstream Subscriber.

Method Summary

Modifier and Type	Method	Description
@NonNull Flow.Subscriber<? super Upstream>	apply(@NonNull Flow.Subscriber<? super @NonNull Downstream> subscriber)	Applies a function to the child Flow.Subscriber and returns a new parent Subscriber.

Method Details

apply

@NonNull
@NonNull Flow.Subscriber<? super Upstream> apply(@NonNull
 @NonNull Flow.Subscriber<? super @NonNull Downstream> subscriber)
                                          throws Throwable

Applies a function to the child Flow.Subscriber and returns a new parent Subscriber.

Parameters:

subscriber - the child Subscriber instance

Returns:

the parent Subscriber instance

Throws:

Throwable - on failure