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From Lars-Fredrik Smedberg <itsme...@gmail.com>
Subject Re: Design - CDI and worker threads
Date Thu, 10 Apr 2014 16:47:25 GMT
I suppose there is no CDI implementation independent way of doing this? We
tried to use Deltaspike before but ran into problem with WAS 8.5.5....
On Apr 10, 2014 5:52 PM, "Romain Manni-Bucau" <rmannibucau@gmail.com> wrote:

> actually @Asynch doesn't mandates to start cdi contexts so request
> scopes can or not be here but transactions are handled if you remove
> transaction management.
> Romain Manni-Bucau
> Twitter: @rmannibucau
> Blog: http://rmannibucau.wordpress.com/
> LinkedIn: http://fr.linkedin.com/in/rmannibucau
> Github: https://github.com/rmannibucau
>
>
>
> 2014-04-10 17:49 GMT+02:00 Mark Struberg <struberg@yahoo.de>:
> > Hi Lars-Fredrik!
> >
> > This is one of the rare situations where @Asynchronous is good
> >
> > @Stateless
> > @TransactionManagement(TransactionManagementType.BEAN)
> > public class ThreadExecutorEjb {
> >
> >     @Asynchronous
> >     public void executeTask(Runnable work, Object config) {
> >         work.run();
> >     }
> > }
> >
> > The problem with this approach is that WAS is _really_ picky (and far
> from
> > the spec imo) when it comes to transactions.
> > You might play a bit with the TransactionManagement and other stuff
> > probably.
> >
> > LieGrue,
> > strub
> > On Thursday, 10 April 2014, 16:21, Romain Manni-Bucau
> > <rmannibucau@gmail.com> wrote:
> >
> > Hmm deltaspike is a lib you can put in your app but if you really want
> > to get rid of it you can copy
> >
> https://git-wip-us.apache.org/repos/asf?p=deltaspike.git;a=blob;f=deltaspike/cdictrl/impl-owb/src/main/java/org/apache/deltaspike/cdise/owb/OpenWebBeansContextControl.java;h=9e8ba98d46abc3843e8e5b872c882989a98fe16a;hb=HEAD
> > Romain Manni-Bucau
> > Twitter: @rmannibucau
> > Blog: http://rmannibucau.wordpress.com/
> > LinkedIn: http://fr.linkedin.com/in/rmannibucau
> > Github: https://github.com/rmannibucau
> >
> >
> >
> > 2014-04-10 15:52 GMT+02:00 Lars-Fredrik Smedberg <itsmeden@gmail.com>:
> >> Hi
> >>
> >> Thanks for the hint, however I'm not able to use Deltaspike but only the
> >> OpenWebbeans included with WebSphere 8.5.5.x...
> >>
> >> How can I do this with OpenWebbeans only?
> >>
> >> Regards
> >> Lars-Fredrik
> >>
> >>
> >> On Thu, Apr 10, 2014 at 3:47 PM, Romain Manni-Bucau
> >> <rmannibucau@gmail.com>
> >> wrote:
> >>>
> >>> Hi
> >>>
> >>> with CdiCtrl of deltaspike you can start/stop contexts. Decorate your
> >>> executorService to do it and it should be fine:
> >>> http://openwebbeans.apache.org/testing_cdictrl.html
> >>> Romain Manni-Bucau
> >>> Twitter: @rmannibucau
> >>> Blog: http://rmannibucau.wordpress.com/
> >>> LinkedIn: http://fr.linkedin.com/in/rmannibucau
> >>> Github: https://github.com/rmannibucau
> >>>
> >>>
> >>>
> >>> 2014-04-10 15:37 GMT+02:00 Lars-Fredrik Smedberg <itsmeden@gmail.com>:
> >>> > Hi
> >>> >
> >>> > If I within a thread wishes to start asynchronous "jobs" using the
> >>> > ExecutorService (and Executors.newFixedThreadPool(...)) and wait for
> >>> > the
> >>> > Future-result within that same thread I run into the following
> >>> > exception:
> >>> >
> >>> > "WebBeans context with scope type annotation @RequestScoped does not
> >>> > exist
> >>> > within current thread"
> >>> >
> >>> > which is understandable since the managed bean passed used in the
> >>> > Callable
> >>> > passed to ExecutorService.submit(...) contains injected beans iteself
> >>> > that
> >>> > are @RequestScoped.
> >>> >
> >>> > Is there any way around this? Suggestions on changing the design
> >>> > perhaps?
> >>> >
> >>> > Regards
> >>> > Lars-Fredrik Smedberg
> >>> >
> >>> >
> >>> > --
> >>> > Med vänlig hälsning / Best regards
> >>> >
> >>> > Lars-Fredrik Smedberg
> >>> >
> >>> > STATEMENT OF CONFIDENTIALITY:
> >>> > The information contained in this electronic message and any
> >>> > attachments to this message are intended for the exclusive use of the
> >>> > address(es) and may contain confidential or privileged information.
> If
> >>> > you are not the intended recipient, please notify Lars-Fredrik
> Smedberg
> >>> > immediately at itsmeden@gmail.com, and destroy all copies of this
> >>> > message and any attachments.
> >>
> >>
> >>
> >>
> >> --
> >> Med vänlig hälsning / Best regards
> >>
> >> Lars-Fredrik Smedberg
> >>
> >> STATEMENT OF CONFIDENTIALITY:
> >> The information contained in this electronic message and any
> >> attachments to this message are intended for the exclusive use of the
> >> address(es) and may contain confidential or privileged information. If
> >> you are not the intended recipient, please notify Lars-Fredrik Smedberg
> >> immediately at itsmeden@gmail.com, and destroy all copies of this
> >> message and any attachments.
> >
> >
>

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