Scala actor programming-object transfer

Scala's most attractive point is actor's concurrent programming. However, looking at Scala official documents, Baidu documents and IBM documents, all of them are passed through strings. If they are used as actor programming, there is certainly no problem. However, in the official opening process, the light transfer string is obviously weak.

So how to transfer objects?

First, let's look at the model for passing messages through strings:

Message receiving class:

import scala.actors.Actorimport org.andy.rtbd.actor.ActorDealclass ActorRev1 extends Actor{      def act()={      while(true){        receive  {case str:String =>println("There is say "+str)          case _=>println("There is no message ")        }      }    }        def dealAD(adm:ActorDeal)={      adm.dealPrint          }}

Message sending class

object ActorSed {  def main(args: Array[String]): Unit = {    var ar = new ActorRev1()    ar.start       ar!"111"  }}

Execute actorsed and check the result:

There is say 111

This result is the simplest way to pass messages through strings. Let's transform it to see how to pass objects.

First, add a class.

class ActorDeal {      var msg:String=""    def dealPrint() = {    println("From deal " + msg)  }}

Then modify the message acceptance class:

 1 import scala.actors.Actor 2 import org.andy.rtbd.actor.ActorDeal 3  4 class ActorRev1 extends Actor{ 5    6     def act()={ 7       while(true){ 8         receive  { 9           case ad:ActorDeal => dealAD(ad)10           case str:String =>println("There is say "+str)11           case _=>println("There is no message ")12         }13       }14     }15     16     def dealAD(adm:ActorDeal)={17 18       adm.dealPrint19       20     }21 }

The highlighted part is the new message receiving option, so easy. We can test it with a slight modification to the sending class:

 1 object ActorSed { 2  3   def main(args: Array[String]): Unit = { 4     var ar = new ActorRev1() 5     ar.start 6     var adm = new ActorDeal 7     adm.msg="HEHE" 8      9     ar!"111"10     ar!adm11   }12 13 }

OK. We can see the result:

1 There is say 1112 From deal HEHE

Although the amount of code is small, I haven't found any information about it for half a day. I had to watch it for a long time before I could see it.

If it is useful to you, please recommend it. Thank you.

Scala actor programming-object transfer