How the Actor life cycle works

When we make a call to method actorOf, what we get in return is an ActorRef that in turn also possesses a particular path where we've created the Actor. With this call, we know exactly there's an Actor instance created, been assigned a unique ID, and hook methods are called. There's this method named preStart() that gets called as the very first action, after a new Actor is created.

A few points to note when a new Actor is created:

• A new Actor path is reserved for the Actor
• A unique ID is assigned to the Actor
• After the instance is created, the preStart() method is called:

When an Actor is restarted:

1. The preRestart() is called on the instance.
2. New instance is created, replaces the old instance.
3. The postRestart() method is called.

When an Actor is stopped:

1. The postStop() method is called on the instance.
2. Terminated...