You can use become instead of having a flag if you like: http://doc.akka.io/docs/akka/2.5/java/actors.html#Become_Unbecome
Not sure what you want to achieve but when you send a message to the actor all other messages that were already in the mailbox will be processed first. You can send a message to yourself and when you receive that message you know that you have ignored/processed all messages that were in front. There can of course be more messages that are added to the mailbox after that message. /Patrik On Wed, May 17, 2017 at 11:48 AM, Marc Christoph <[email protected]> wrote: > Good day > > Does Akka provide functionality to empty an actor's mailbox? I need all > message processing in an actor to immediately stop after receiving a > specific message. I have tried something like this: > > @Override > public void onReceive(Object msg) throws Throwable { > if (msg instanceof SomeMessage){ > if (!running){ > return; > } > // Process message > } else if (msg instanceof SomeOtherMessage){ > if (!running){ > return; > } > // Process message > } else if (msg instanceof Stop){ > running = false; > } else if (msg instanceof Start){ > running = true; > } else { > unhandled(msg); > } > } > > This approach works for the most part, but if there are too many messages > queued, the actor's mailbox is not empty by the time the "Start" message is > received, and this causes issues with data structures etc. held by the > actor. > > Thanks in advance. > > Marc > > -- > >>>>>>>>>> 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. > -- Patrik Nordwall Akka Tech Lead Lightbend <http://www.lightbend.com/> - Reactive apps on the JVM Twitter: @patriknw -- >>>>>>>>>> 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.
