Interface MaybeOperator<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 MaybeOperator<@NonNull Downstream, @NonNull Upstream>

Interface to map/wrap a downstream MaybeObserver to an upstream MaybeObserver.

Method Summary

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

Method Details

apply

@NonNull
@NonNull MaybeObserver<? super Upstream> apply(@NonNull
 @NonNull MaybeObserver<? super @NonNull Downstream> observer)
                                        throws Throwable

Applies a function to the child MaybeObserver and returns a new parent MaybeObserver.

Parameters:

observer - the child MaybeObserver instance

Returns:

the parent MaybeObserver instance

Throws:

Throwable - on failure