I don't quite catch the word "inline" Let me make it a little complex:
Assuming I have a source, for each element A of the source: if(A.property1 == 1) goes to flow1 + flow2 + flow3 if(A.property1 ==2) goes to flow4 + flow5 if(A.property1 == 3) goes to flow6 + flow7 + flow8 + flow9 ... ... It seems what I want is a black box composite flow that encapsulate all above sub flows and output them in orders. How should I do branching for above cases? Leon 在 2015年11月25日星期三 UTC-8上午2:46:25，Akka Team写道： > > Hi Leon, > > Have you tried not adding a broadcast and try to use it inline? > > -Endre > > On Wed, Nov 25, 2015 at 10:09 AM, Leon Ma <[email protected] <javascript:> > > wrote: > >> Hi, >> >> I have some questions regarding below code: >> >> val myFlow: Flow[A, B, Any] = >> Flow.fromGraph(FlowGraph.create() { implicit b => >> import akka.stream.scaladsl.FlowGraph.Implicits._ >> >> val broadcast = b.add(Broadcast[A](2)) >> val merge = b.add(Merge[B](2)) >> >> val flow1 = Flow[A].map(...) >> val flow2 = b.add(Flow[A].map(...)) >> >> broadcast ~> flow1 ~> merge >> broadcast ~> flow2 ~> merge >> >> // expose ports >> FlowShape(broadcast.in , merge.out) >> }) >> >> >> Question: >> >> What's the purpose of b.add(...)? What's the difference if I don't use >> it, just like flow1? >> >> Thanks >> Leon >> >> >> -- >> >>>>>>>>>> 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] <javascript:>. >> To post to this group, send email to [email protected] >> <javascript:>. >> Visit this group at http://groups.google.com/group/akka-user. >> For more options, visit https://groups.google.com/d/optout. >> > > > > -- > Akka Team > Typesafe - Reactive apps on the JVM > Blog: letitcrash.com > Twitter: @akkateam > -- >>>>>>>>>> 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 http://groups.google.com/group/akka-user. For more options, visit https://groups.google.com/d/optout.
