io.reactivex.rxjava3.core

Interface SingleOperator<Downstream,Upstream>

Type Parameters:

Downstream - the value type of the downstream

Upstream - the value type of the upstream

public interface SingleOperator<Downstream,Upstream>

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

Method Summary

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

Method Detail

apply

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

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:

Exception - on failure