Scala Reactive Programming

Defining an Actor

Before creating an Actor and performing its operations, we need to define it.

In the Akka Toolkit, we can define an Actor class by extending the Actor Trait and providing implementation for the receive method, as follows:

class SampleActor extends Actor { 
  def receive: Receive = { 
    //Implmentation 
  } 
} 

Here's the description:

• Here, Actor is a trait available in the akka.actor package
• The Actor trait has an abstract method—receive
• The receive () function is a Scala Partial Function
• It takes a type of Any and returns Unit
• Its complete signature  is this:

      def receive: PartialFunction[Any,Unit] = ??? 

Alternatively, we can use the following simple syntax:

      def receive: Receive= ??? 

• Here, Receive is a type, as shown here: ...