io.reactivex

Interface ObservableOperator

Type Parameters:

Downstream - the value type of the downstream

Upstream - the value type of the upstream

public interface ObservableOperator

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

Method Summary

Modifier and Type	Method and Description
ObserverUpstream>	apply(ObserverDownstream> observer) Applies a function to the child Observer and returns a new parent Observer.

Method Detail

apply

@NonNull
ObserverUpstream> apply(@NonNull
                                          ObserverDownstream> observer)
                                   throws Exception

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

Parameters:

observer - the child Observer instance

Returns:

the parent Observer instance

Throws:

Exception - on failure