See documentation for akka.event.ActorClassification An EventBus where the Subscribers are ActorRefs and the Classifier is ActorRef Means that ActorRefs "listen" to other ActorRefs E is the Event type
See documentation for akka.event.LookupClassification E is the Event type S is the Subscriber type C is the Classifier type
See documentation for akka.event.ScanningClassification E is the Event type S is the Subscriber type C is the Classifier type
See documentation for akka.event.SubchannelClassification E is the Event type S is the Subscriber type C is the Classifier type