E.g. at startup the actor might be in initialization mode, e.g. waiting for reply from external service, and then changing behavior to active (with different state variables). You can even switch between mutable and immutable.
In untyped actors this is supported with context.become /Patrik ons 19 juli 2017 kl. 06:11 skrev Mushtaq Ahmed <[email protected]>: > I am not able to understand when to make use of it instead of always > returning 'this' outside the match block in MutableBehaviour. Sounds > redundant right now, but maybe I need to write a bit more code to see the > utility. > > On Wednesday, July 19, 2017 at 5:20:19 AM UTC+5:30, Konrad Malawski wrote: > >> Exactly the same. >> Becoming an different behavior. >> > >> >> On July 19, 2017 at 0:16:18, Mushtaq Ahmed ([email protected]) wrote: >> > Actor.immutable returning Behaviour[T] makes sense as it uses recursion to >>> return updated state or Actor.stopped etc. >>> >>> But in MutableBehavior, I end up using this pattern a lot. >>> >>> override def onMessage(msg: Msg): Behavior[Msg] = { >>> msg match { >>> case M1 => //unit returning action >>> case M2 => //unit returning action >>> } >>> this >>> } >>> >>> >>> Which makes me wonder what use cases are helped by onMessage returning >>> Behaviour type (instead of Unit). Any thoughts? >>> >>> -- >>> >>>>>>>>>> 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 [email protected]. >>> To post to this group, send email to [email protected]. >>> >> >>> Visit this group at https://groups.google.com/group/akka-user. >>> For more options, visit https://groups.google.com/d/optout. >>> >> -- > >>>>>>>>>> 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 [email protected]. > To post to this group, send email to [email protected]. > Visit this group at https://groups.google.com/group/akka-user. > For more options, visit https://groups.google.com/d/optout. > -- >>>>>>>>>> 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 [email protected]. To post to this group, send email to [email protected]. Visit this group at https://groups.google.com/group/akka-user. For more options, visit https://groups.google.com/d/optout.
