Hi Sean, a good practice to define messages that actor handles in actor's companion object. This is of course not enforced by compiler in anyway, but it is good code convention to follow.
If you want more compiler help, you may want to check out Typed Actors <http://doc.akka.io/docs/akka/2.3.9/scala/typed-actors.html> or if you want something fresh and exciting you can take a look at akka-typed <https://github.com/akka/akka/pull/16665> which is still in PR form but is going to address the issue you are facing. On Fri, Jan 23, 2015 at 5:21 AM, Sean Zhong <clock...@gmail.com> wrote: > Suppose we have a servie actor: > > class Service extends Actor { > def receive: Receive = { > case RequestA(args) => doSomething() > case RequestB(args) => doAnotherThing() > } > } > > // Some client is using RequestA indirectly, like this: > > > class Source(request: RequestA) > > > A client is trying to sending RequestA to service > class Client(source: Source) { > def query: Unit = { > service ? source.request > } > } > > Then one day, Service decide to NO longer support RequestA. > The above code will still compile as the client doesn't know the Service > has changed the interface, and will still send the invalid command. > > Do you have recommended coding practice to follow, or tools to use, so > that it is easir to identity and track this kind of errors? > > -- > >>>>>>>>>> Read the docs: http://akka.io/docs/ > >>>>>>>>>> Check the FAQ: > http://doc.akka.io/docs/akka/current/additional/faq.html > >>>>>>>>>> Search the archives: https://groups.google.com/group/akka-user > --- > You received this message because you are subscribed to the Google Groups > "Akka User List" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to akka-user+unsubscr...@googlegroups.com. > To post to this group, send email to akka-user@googlegroups.com. > Visit this group at http://groups.google.com/group/akka-user. > For more options, visit https://groups.google.com/d/optout. > -- Martynas Mickevičius Typesafe <http://typesafe.com/> – Reactive <http://www.reactivemanifesto.org/> Apps on the JVM -- >>>>>>>>>> Read the docs: http://akka.io/docs/ >>>>>>>>>> Check the FAQ: >>>>>>>>>> http://doc.akka.io/docs/akka/current/additional/faq.html >>>>>>>>>> Search the archives: https://groups.google.com/group/akka-user --- You received this message because you are subscribed to the Google Groups "Akka User List" group. To unsubscribe from this group and stop receiving emails from it, send an email to akka-user+unsubscr...@googlegroups.com. To post to this group, send email to akka-user@googlegroups.com. Visit this group at http://groups.google.com/group/akka-user. For more options, visit https://groups.google.com/d/optout.
