It's almost like the requires feature from seam. I think there was a portability issue w/ OWB.
On Wed, Sep 17, 2014 at 3:58 PM, Thomas Andraschko < [email protected]> wrote: > I understand the use-case but i don't like the name. > If you use @ExcludeIfExists, you mark it as default implementation if no > other impl is on the classpath. > > Maybe something like @DefaultImplementation would fit it better. > > > 2014-09-17 19:14 GMT+02:00 Jason Porter <[email protected]>: > > > Feel free to prototype something in GitHub (or elsewhere) and present the > > code. > > > > On Wed, Sep 17, 2014 at 10:11 AM, Christian Beikov < > > [email protected]> wrote: > > > > > Is nobody interested in something like that? I would really like to > > > discuss it and also contribute the implementation. > > > > > > Mit freundlichen Grüßen, > > > > ------------------------------------------------------------------------ > > > *Christian Beikov* > > > Am 25.08.2014 um 22:21 schrieb Christian Beikov: > > > > > > Hello guys! > > >> > > >> I implemented an extension that excludes a bean or producer only if a > > >> bean for a user specified type exists. > > >> Here a little example: > > >> > > >> public class AImpl1 implement A { ... } > > >> > > >> @ExcludeIfExists(A.class) > > >> public class AImpl2 implement A { ... } > > >> > > >> When both classes are on the classpath, AImpl2 will be vetoed. > > >> When only AImpl2 is on the classpath, a bean will be created for it. > > >> > > >> This was something that I was missing when trying to use the Exclude > > >> annotation of Deltaspike. Now I would like to know if you are > > interested in > > >> such an extension. I can provide you the basic code, which is actually > > not > > >> that trivial. > > >> I think many people would benefit from this extension. Especially the > > >> servlet module could benefit from that too since it could replace > > current > > >> usages of the Deltaspike qualifier on the producers with the exclude > > >> annotation. Then the servlet module could provide beans for the > servlet > > >> resources on EE6 servers. On EE7 servers those beans would be vetoed > > since > > >> EE7 servers already provides default beans for many resources. > > >> > > >> I hope you like the idea and I can help get that into the next > > deltaspike > > >> release. > > >> -- > > >> > > >> Mit freundlichen Grüßen, > > >> > ------------------------------------------------------------------------ > > >> *Christian Beikov* > > >> > > > > > > > > > > > > -- > > Jason Porter > > http://en.gravatar.com/lightguardjp > > >
