Why are PublishSubject, etc considered 'internal/not needed by users' in scala-lang?

[lossyrob]

https://github.com/Netflix/RxJava/blob/master/language-adaptors/rxjava-scala/src/main/scala/rx/lang/scala/subjects/package.scala#L40

I have an instance in an Akka Actor where I'd like to pass back an Observable to the a client, and then manually convert messages passed to that actor as events on that observable for the client to handle. I can do this with:

val ps = PublishSubject.create[Int]()
val o = Observable(ps)

// send o to client

// on incoming message,
ps.onNext(i)

Which works fine but it seems like shows that PublishSubject can be used in a not-internal way, and I certainly would use one out of the scala-lang package instead of having to dip outside of it.

I haven't used RxJava much but I used to do this with a .NET Rx project a lot, where objects would manage observables and converting non-IObservable pattern events into events on those observables. Is there a better way to convert Akka message streams\arbitrary non-RxJava streams into Observable events that I am missing?

[benjchristensen]

Probably they have just not been wrapped yet by those contributing to the scala-lang module.

Here is a blog post from @jmhofer working with Akka: http://jmhofer.johoop.de/?p=507

You can see some background on the Scala support being added here: #336 and learn more about the implementation via this presentation starting around the 52 minute mark: http://youtu.be/tOMK_FYJREw?t=52m13s

You can get involved and contribute to this module: https://github.com/Netflix/RxJava/tree/master/language-adaptors/rxjava-scala

[lossyrob]

Thanks for the resources, I'll take a look. I worked in C# for years and used Rx extensively. I'm glad to see it make it's way into scala. I'll see what I can contribute.

Cheers,
Rob

[samuelgruetter]

It's me who wrote that "PublishSubject, etc are considered internal/not needed by users", but that's wrong, please discard it.

I think @headinthebox started/wanted to start writing Scala bindings for these subjects, but I'm not sure what the status is.