2016-09-23 12:22 GMT+02:00 CLEMENT Jean-Philippe <
[email protected]>:
> Hi Guillaume,
>
>
>
> We do have a lot of classes used in the blueprint which use generics and
> fail. As far as I understand each of those classes should have a converter
> and each bundle making use of them should declare the 2-3 lines you
> mentioned per converter, correct?
>
The converters are always called. I don't see why you'd need multiple
converters, it should be fairly easy to write one which will simply convert
all erased types to the equivalent with a generic, and that should solve
all your problems.
>
>
> Having said that, why having extra converters and Blueprint to get no
> added value?
>
Because that's how the spec has been written. We already implemented more
that what the spec says with ARIES-1500, and I think there's an easy work
around.
So please try the workaround first, and we'll see how it goes.
Here's the converter code you can try:
public class ErasureConverter implements Converter {
@Override
public boolean canConvert(Object sourceObject, ReifiedType targetType) {
return targetType.getRawClass().isInstance(sourceObject);
}
@Override
public Object convert(Object sourceObject, ReifiedType targetType)
throws Exception {
return sourceObject;
}
}
>
>
> JP
>
>
>
> *De :* Guillaume Nodet [mailto:[email protected]]
> *Envoyé :* vendredi 23 septembre 2016 11:36
>
> *À :* [email protected]
> *Objet :* Re: Blueprint issue with generics
>
>
>
> Have you tried using a Converter ? This should fix all your problems quite
> easily, it's only 2 or 3 lines to add to your blueprint.
>
>
>
> 2016-09-23 11:30 GMT+02:00 CLEMENT Jean-Philippe <
> [email protected]>:
>
> Dear Aries Team,
>
>
>
> The Jira (ARIES-1607) is not assigned. Does it mean it won’t be fixed?
>
>
>
> Regards,
>
> JP
>
>
>
> *De :* CLEMENT Jean-Philippe [mailto:jean-philippe.clement@
> fr.thalesgroup.com]
> *Envoyé :* vendredi 16 septembre 2016 14:29
> *À :* [email protected]
> *Objet :* RE: Blueprint issue with generics
>
>
>
> I finally opened a Jira about this issue as I still get problems caused by
> the injection checking system which goes far beyond expectations.
>
>
>
> https://issues.apache.org/jira/browse/ARIES-1607
>
>
>
> I hope it could be fixed :)
>
>
>
> Thank you!
>
>
>
> Kind regards,
>
> JP
>
>
>
> *De :* Benjamin Doerr [mailto:[email protected]
> <[email protected]>]
> *Envoyé :* jeudi 11 février 2016 22:39
> *À :* [email protected]
> *Objet :* Re: Blueprint issue with generics
>
>
>
> Also would love to see this fixed. My workaround is usually this:
>
>
>
> void setSomething(Something<T> s)
>
> to
>
> <S extends Something<T>> setSomething(S s)
>
>
>
> which maintains the compile type checking. And like Jean-Philippe,
> third-party APIs mean that if I can I have to create a local extension with
> a hacked setter just to make blueprint happy.
>
>
>
> Best Regards,
>
> Benjamin Doerr
>
>
>
> On Thu, Feb 11, 2016 at 4:10 AM, CLEMENT Jean-Philippe <
> [email protected]> wrote:
>
> Dear Aries Team,
>
> I have an issue with the way generics are handled in Blueprint. I get an
> exception claiming that the bean conversion is not possible, but it should.
>
> Let's say I have a bean with the method setSomething(Something<T>) called
> via blueprint with another bean implementing Something => exception. If I
> change the method signature without the generic type
> setSomething(Something), then it works as expected.
>
> Until now I did workaround by changing the method signatures and logging a
> warning but now I'm blocked with a third-party API. So I have to find a
> real solution.
>
> I don't catch why Blueprint cares for the generic type as Java is type
> erasure. So it seems to exceed Java spec. Is there a way to comply with
> Java type erasure, i.e. discard generic types when "converting" beans?
>
> Regards,
> JP
>
> [@@ OPEN @@]
>
>
>
>
>
>
>
> --
>
> ------------------------
> Guillaume Nodet
> ------------------------
>
> Red Hat, Open Source Integration
>
>
>
> Email: [email protected]
> Web: http://fusesource.com
> Blog: http://gnodet.blogspot.com/
>
>
>
--
------------------------
Guillaume Nodet
------------------------
Red Hat, Open Source Integration
Email: [email protected]
Web: http://fusesource.com
Blog: http://gnodet.blogspot.com/
