io.reactivex.rxjava3.core

Interface SingleOperator<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 SingleOperator<Downstream,Upstream>

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

Method Summary

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

Method Detail

apply

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

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

Parameters:

observer - the child SingleObserver instance

Returns:

the parent SingleObserver instance

Throws:

Throwable - on failure