Late injection through constructor input streams

late-injection-constructor-input-stream.md

class MatchPresentationLogics(
    private val bagel: Bagel,
    private val banState: Observable<BanState>
) {
   init {
       banState.subscribe {
           // do what's necessary
       }
   }
}

Usage

// initialization
val banStateSubject = PublishSubject.create<BanState>()
val presenter = MatchPresentationLogics(bagel, banStateSubject)
...
// Sometimes later
banStateSubject.onNext(true)