Actor Lifecycle

From start to stop

In the previous post we saw the different ways in which actors can communicate with each other. In this post we’ll see the lifecycle of an actor.

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Communication between Actors

Passing messages between actors

In the previous example we created a single actor and sent it a hello message. However, Akka allows us to create an actor hierarchy. This means we can have some actor supervising some other actor(s).

Communication Patterns

Different ways to pass messages

In the previous post we created a SupervisorActor which supervises our GreetingsActor. The SupervisorActor did two things — send Hello message over to GreetingsActor, and ask it the count of the messages it has…

Akka Actors Explained

What makes an Actor

In the previous post we wrote our “hello world” program for Akka. In this post we’ll take a closer look at what makes an actor.

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Hotswapping Behavior

Changing behavior at runtime

As mentioned in my previous posts, an actor encapsulates state and behavior. Akka allows you to change the behavior of the actor at runtime in response to messages.