OK, thanks for the clarification! Regards, Jakob
2010/9/29 Joseph Bergmark <[email protected]>: > I think you hit the nail on the head with your last paragraph. > Basically it only matters that the bean (or producer in this case) > matches all of the qualifiers on the injection point. From the > perspective of the specification it doesn't matter if the bean has > extra qualifiers beyond those on the injection point. Section 5.3 is > another key section here. > > Sincerely, > > Joe > > On Wed, Sep 29, 2010 at 12:30 PM, Jakob Korherr <[email protected]> > wrote: >> Hi, >> >> I tested some scenarios when using multiple qualifiers for test-cases >> in MyFaces CODI and stumbled upon the following scenario, which is not >> totally clear to me. >> >> Image you have the following producer methods: >> >> �...@produces >> �...@qualifier2 >> �...@applicationscoped >> public ProducerBean createWithQualifier2() >> { >> return new ProducerBean(); >> } >> >> �...@produces >> �...@qualifier1 >> �...@qualifier2 >> �...@applicationscoped >> public ProducerBean createWithQualifier1And2() >> { >> return new ProducerBean(); >> } >> >> >> and you want to inject the instances produced by these producers. Now >> you can use @Inject @Qualifier1 or @Inject @Qualifier1 @Qualifier2, >> but when using @Inject @Qualifier2 you will get an exception, because >> the injection point is ambiguous (both producers provide @Qualifier2). >> >> However I was wondering if this is really unresolvable ambiguous, >> because if you think about it, it would make sence to take the >> producer createWithQualifier2() in this scenario (because the other >> one provides additional qualifiers). >> >> I also took a look in the CDI spec about this, but could only find the >> following from section 2.3.4: "A bean may only be injected to an >> injection point if it has all the qualifiers of the injection point." >> Of course this applies to both producers and thus, yes, it's kinda >> ambiguous. >> >> WDYT? >> >> Regards, >> Jakob >> >> -- >> Jakob Korherr >> >> blog: http://www.jakobk.com >> twitter: http://twitter.com/jakobkorherr >> work: http://www.irian.at >> > -- Jakob Korherr blog: http://www.jakobk.com twitter: http://twitter.com/jakobkorherr work: http://www.irian.at
