Scala Reactive Programming

Roles and responsibilities of ActorSystem

The Akka ActorSystem has the following roles and responsibilities:

• It acts as runtime for all Actors
• It creates Actors
• It can stop Actors
• It supervises related Actors
• It creates threads and assigns them to the Actor's dispatcher to process the messages
• It manages the lifecycle of Actors
• It can shut down the whole Akka Actor environment
• It creates the following three base Actors to help other Actors:
  • Root Actor (/)
  • User Guardian Actor(/user)
  • System Guardian Actor(/system)
• It supervises or monitors those top-level Actors
• When we run ActorSystem.terminate(), it is responsible for terminating all the available Actors automatically

When we create an Actor using ActorSystem.actorOf(), as shown in the ...