Re: [cdi-dev] Concurrency Control

We've discussed this issue before. I definitely still think @Lock belongs in a modular CDI specification. It would be highly useful to both @Singleton and @ApplicationScoped. Today if I need to use declarative concurrency control for a shared component I am essentially forced to use EJB singleton - which shouldn't be the case and perhaps should not have been the case past Java EE 6. On 2/19/2016 5:27 AM, Stephan Knitelius wrote: Hi all, CDI spec does not define a common concurrency control mechanism. The time any type of concurrency control is mentioned is in conjunction with EJB and a rather restrictive one for conversation context. CDI Spec: The container ensures that a long-running conversation may be associated with at most one request at a time, by blocking or rejecting concurrent requests. If the container rejects a request, it must associate the request with a new transient conversation and throw an exception of type javax.enterprise.context.BusyConversationException. It would be helpful if a common configurable concurrency mechanism (EJB Singleton style locking?) could be established for all normal scopes. What are your thoughts on this? Regards, Stephan ______________________________________ *Stephan Knitelius* Alteburger Str. 274 50968 Köln / Cologne Deutschland / Germany stephan(a)knitelius.com _______________________________________________ cdi-dev mailing listcdi-dev@lists.jboss.orghttps://lists.jboss.org/mailman/listinfo/cdi-dev Note that for all code provided on this list, the provider licenses the code under the Apache License, Version 2 (http://www.apache.org/licenses/LICENSE-2.0.html). For all other ideas provided on this list, the provider waives all patent and other intellectual property rights inherent in such information. _______________________________________________ cdi-dev mailing list cdi-dev(a)lists.jboss.org https://lists.jboss.org/mailman/listinfo/cdi-dev Note that for all code provided on this list, the provider licenses the code under the Apache License, Version 2 ( http://www.apache.org/licenses/LICENSE-2.0.html). For all other ideas provided on this list, the provider waives all patent and other intellectual property rights inherent in such information.