On Fri, Apr 11, 2014 at 9:57 AM, Roland Kuhn <[email protected]> wrote:
> > 11 apr 2014 kl. 09:33 skrev Patrik Nordwall <[email protected]>: > > > > > On Thu, Apr 10, 2014 at 2:17 PM, Roland Kuhn <[email protected]> wrote: > >> It is slightly inconsistent, though: consider >> >> /a/*/c >> >> >> - if a does not exist, we reply >> - if it has no children, we don't reply >> - if one of its children has no `c` then we reply >> >> >> I think we should send ActorIdentity(None) if a pattern matches nothing. >> > > I agree, but we can maybe do even better. Consider: > > /user/a/b/c > /user/x > /user/y/b > > actorSelection("/user/*/b/c") > will give 3 replies, 2 of which are ActorIdentity(None) > > I think it should never reply with ActorIdentity(None) after a wildcard > fan-out to more than one branch. > > > That sounds reasonable, and I cannot immediately identify a catch (apart > from having to re-allocate the "downstream" components of the actor > selection message in the fan-out case). We'll know for sure once it is > implemented. Any volunteers? > I was thinking of having a private[akka] flag on the Identify message, that could be set (immutable copy of course) when the wildcard fans out to more than 1. > > Regards, > > Roland > > Non-matching wildcard can reply with None, and after wildcard match of one > child it can also reply with None later. > > /Patrik > > >> >> Regards, >> >> Roland >> >> 10 apr 2014 kl. 12:24 skrev Heiko Seeberger <[email protected]>: >> >> Makes total sense. Should be documented more explicitly, though. >> >> Thanks >> Heiko >> >> >> On Thu, Apr 10, 2014 at 11:13 AM, Patrik Nordwall < >> [email protected]> wrote: >> >>> This is by design for wildcard selections and I think it would be very >>> difficult to implement it. >>> When should it reply with ActorIdentity(None)? The wildcard can >>> potentially traverse remote nodes. >>> >>> /Patrik >>> >>> >>> On Thu, Apr 10, 2014 at 10:58 AM, chris <[email protected]>wrote: >>> >>>> Thanks! >>>> >>>> >>>> On Thursday, April 10, 2014 10:39:45 AM UTC+2, Heiko Seeberger wrote: >>>> >>>>> Hi, >>>>> >>>>> I can verify this behavior which I consider a bug. >>>>> Ticket created: https://www.assembla.com/spaces/akka/tickets/3992 >>>>> >>>>> Heiko >>>>> >>>>> >>>>> On Thu, Apr 10, 2014 at 9:56 AM, chris <[email protected]> wrote: >>>>> >>>>>> Hi, >>>>>> an interesting question got posted on stackoverflow: >>>>>> https://stackoverflow.com/questions/22948717/ >>>>>> actorselection-does-not-respond-when-wildcard-is-used >>>>>> >>>>>> When using an actor selection with wildcards (which does not match >>>>>> an actor) no response >>>>>> (ActorIdentity) is sent to the Identify message. Is this normal >>>>>> behaviour? >>>>>> >>>>>> Cheers, >>>>>> Christian >>>>>> >>>>>> -- >>>>>> >>>>>>>>>> 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. >>>>>> >>>>> >>>>> >>>>> >>>>> -- >>>>> >>>>> Heiko Seeberger >>>>> Twitter: @hseeberger >>>>> Blog: blog.heikoseeberger.name >>>>> >>>> >>>> -- >>>> >>>>>>>>>> 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. >>>> >>> >>> >>> >>> -- >>> >>> Patrik Nordwall >>> Typesafe <http://typesafe.com/> - Reactive apps on the JVM >>> Twitter: @patriknw >>> JOIN US. REGISTER TODAY! <http://www.scaladays.org/> >>> Scala <http://www.scaladays.org/> >>> Days <http://www.scaladays.org/> >>> June 16th-18th, <http://www.scaladays.org/> >>> Berlin <http://www.scaladays.org/> >>> >>> >>> -- >>> >>>>>>>>>> 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. >>> >> >> >> >> -- >> >> Heiko Seeberger >> Twitter: @hseeberger >> Blog: blog.heikoseeberger.name >> >> -- >> >>>>>>>>>> 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. >> >> >> >> >> *Dr. Roland Kuhn* >> *Akka Tech Lead* >> Typesafe <http://typesafe.com/> - Reactive apps on the JVM. >> twitter: @rolandkuhn >> <http://twitter.com/#!/rolandkuhn> >> >> >> -- >> >>>>>>>>>> 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. >> > > > > -- > > Patrik Nordwall > Typesafe <http://typesafe.com/> - Reactive apps on the JVM > Twitter: @patriknw > JOIN US. REGISTER TODAY! <http://www.scaladays.org/> > Scala <http://www.scaladays.org/> > Days <http://www.scaladays.org/> > June 16th-18th, <http://www.scaladays.org/> > Berlin <http://www.scaladays.org/> > > > -- > >>>>>>>>>> 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. > > > > > *Dr. Roland Kuhn* > *Akka Tech Lead* > Typesafe <http://typesafe.com/> - Reactive apps on the JVM. > twitter: @rolandkuhn > <http://twitter.com/#!/rolandkuhn> > > -- > >>>>>>>>>> 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. > -- Patrik Nordwall Typesafe <http://typesafe.com/> - Reactive apps on the JVM Twitter: @patriknw JOIN US. REGISTER TODAY! <http://www.scaladays.org/> Scala <http://www.scaladays.org/> Days <http://www.scaladays.org/> June 16th-18th, <http://www.scaladays.org/> Berlin <http://www.scaladays.org/> -- >>>>>>>>>> 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.
