scala actors and persistence context

Question

Is it possible to inject a persistence context into a scala actor every time it acts? I have a dual Java/Scala spring application, and I am using spring annotations to markup my Java services and methods as transactional. I'd like to use similar functionality within my scala actors. That is, the actor should operate within a single transaction every time it responds to a message. Has anyone tried something similar or are there examples out there of this kind of thing?

Answer 1

Why not encapsulate the persistent access via a Dao trait which is injected into the actor itself. This way you can have a persistence actor which is decoupled from the persistence mechanism itself:

class DaoActor(val dao: Dao) extends Actor {

   def act() = {
     loop {
       react {
         case SaveTrade(trade) => dao.save(trade)
         case ReadTrades(date) => dao.lookup(date)           }
     }
   }
}

What's more, your Dao could be coded in Java, so you can add the @Transactional annotation there.