OperatorUsing

[zsxwing]

Operator Using

Issue #1060

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[akarnokd]

While you are at it, could you rename RESOURCE to Resource. Same for the Operator's class def.

[akarnokd]

Belay that, rather have the following signature

<T> Observable<T> using(Func0<? extends Subscription> resourceFactory, Func1<? super Subscription, ? extends Observable<? extends T>> observableFactory)

[zsxwing]

Your proposal will require a cast in observableFactory if the user wants to use the Resource in observableFactory. So I changed to

public final static <T, Resource extends Subscription> Observable<T> using(
    Func0<Resource> resourceFactory, 
    Func1<Resource, ? extends Observable<? extends T>> observableFactory)

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