> 9 maj 2014 kl. 19:33 skrev Heiko Seeberger <[email protected]>:
>
> Maybe we could have `start` return an `ActorRef` immediately, i.e. an
> asynchronous operation like `actorOf`?
I'm not sure it's worth the effort to implement something like
RepointableActorRef for something that is called only at app startup (and is
quick as is).
/Patrik
>
> Heiko
>
>
>
>> On Fri, May 9, 2014 at 4:48 PM, Patrik Nordwall <[email protected]>
>> wrote:
>>
>>
>>
>>> On Fri, May 9, 2014 at 4:43 PM, Jeroen Gordijn <[email protected]>
>>> wrote:
>>> Thanks Patrik, I overlooked that it is blocking, that makes the fix even
>>> easier. You mention that you would not do it in the same place and I don't
>>> have enough experience to comment on that, but in the course it seemed
>>> perfectly valid to do just that. I created a ticket:
>>> https://github.com/akka/akka/issues/15157
>>
>> Thanks, yes, on second thought I agree. Pass it in to other actors.
>> /Patrik
>>
>>>
>>> Cheers,
>>> Jeroen
>>>
>>> Op vrijdag 9 mei 2014 16:33:07 UTC+2 schreef Patrik Nordwall:
>>>>
>>>> You should be able to do those calls immediately after each other, from
>>>> same thread.
>>>> ClusterSharding(context.system).start
>>>> ClusterSharding(context.system).shardRegion
>>>>
>>>> Start doesn't return until it has been initalized.
>>>>
>>>> Normally, I don't think these two things are done at the same place in the
>>>> code, so I don't think it is much value in returning the ActorRef from
>>>> start, but it would not hurt to do so. Please create a ticket. Thanks for
>>>> reporting.
>>>>
>>>> Cheers,
>>>> Patrik
>>>>
>>>>
>>>>> On Fri, May 9, 2014 at 3:48 PM, Jeroen Gordijn <[email protected]>
>>>>> wrote:
>>>>> Hi,
>>>>>
>>>>> I followed the Advanced akka course in the last 2 days (which was awesome
>>>>> by the way) and noticed something of the API which I think can be
>>>>> improved. When you start the ClusterSharding its return type is Unit and
>>>>> you have to retrieve the ShardRegion by calling the "shardRegion" on
>>>>> ClusterSharding. However, this cannot take place in a short period,
>>>>> because "shardRegion(...)" will 'throw new
>>>>> IllegalArgumentException(s"Shard type [$typeName] must be started
>>>>> first")'.
>>>>>
>>>>> In my mind it would be an improvement if the start returns an ActorRef
>>>>> immediately and then buffers all requests to it until the ShardRegion is
>>>>> initialized. Am I overlooking some problems with that?
>>>>>
>>>>> Cheers,
>>>>> Jeroen
>>>>>
>>>>> -- Start ShardRegion
>>>>> ClusterSharding(context.system).start(
>>>>> "player",
>>>>> Some(Player.props),
>>>>> Player.idExtractor,
>>>>> Player.shardResolver(10)
>>>>> )
>>>>>
>>>>> -- get reference to ShardRegion
>>>>> val playerRegion = ClusterSharding(context.system).shardRegion("player")
>>>>> --
>>>>> >>>>>>>>>> Read the docs: http://akka.io/docs/
>>>>> >>>>>>>>>> Check the FAQ:
>>>>> >>>>>>>>>> http://doc.akka.io/docs/akka/current/additional/faq.html
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>>>>
>>>>
>>>>
>>>>
>>>> --
>>>> Patrik Nordwall
>>>> Typesafe - Reactive apps on the JVM
>>>> Twitter: @patriknw
>>>>
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>>> --
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>>
>>
>>
>>
>> --
>> Patrik Nordwall
>> Typesafe - Reactive apps on the JVM
>> Twitter: @patriknw
>>
>> JOIN US. REGISTER TODAY!
>> Scala
>> Days
>> June 16th-18th,
>> Berlin
>> --
>> >>>>>>>>>> Read the docs: http://akka.io/docs/
>> >>>>>>>>>> Check the FAQ:
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>
>
>
> --
>
> 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
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--
>>>>>>>>>> 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
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