[cdi-dev] CDI-26 feedback

Wed May 27 09:34:11 EDT 2015

> Le 27 mai 2015 à 14:57, John D. Ament <john.d.ament at gmail.com> a écrit :
> 
> Jozef,
> 
> Neither was lost, just not in scope for us to get EDR1 out the door.
> 
> 1. Antoine just now raised a separate issue.

Perhaps we should state in EDR (in a side note) that it will be addressed later and ask for user input. Wdyt?

Now if there are real issues in producing a EDR1 simple with all discovery mode we could restrict the bean discovery mode by supporting only “none” for the EDR1 (side note again).

I understand that it’s not totally satisfying to not be able to release all the feature at once, but let’s face it, CDI-26 has been around for 4,5 years so splitting it in smaller part to resolve them one by one seems the best solution to get out Java SE support.

> 
> 2. EDR1 infers that only a single CDI instance is associated to a CDIProvider (so they're 1:1).  We can move this after EDR1.

Unless Jozef has a proposal to solve the issue for getCdi() and that we all agree on.

In the other case I will add a ticket for the multiple container support in SE. That could even be wise since it’s a controversial feature (Mark is against it), so having a specific place to discuss it could be a better solution.

Jozef, any thought about this ?

Antoine

> John
> 
> On Wed, May 27, 2015 at 5:21 AM Jozef Hartinger <jharting at redhat.com <mailto:jharting at redhat.com>> wrote:
> Hi all,
> 
> I'd like to raise several concerns with the CDI-26 resolution that I either forgot to raise before or were lost in the process.
> 
> 1) Bean discovery in SE
> 
> I was under the impression that the task to define bean discovery for SE was postponed post EDR1 yet the PR for CDI-26 that has been merged defines bean discovery in SE explicitly https://github.com/johnament/cdi/commit/a112489f248ab9074da4d0a81a28abc67f8cdbe5#diff-ffe540480772deae967ea309fa5f3976R44 <https://github.com/johnament/cdi/commit/a112489f248ab9074da4d0a81a28abc67f8cdbe5#diff-ffe540480772deae967ea309fa5f3976R44>
> 
> I am concerned about the way it is defined currently as it requires that the CDI implementation eagerly loads/scans each and every class found on the classpath during initialization. Due to performance implications of this I am convinced that this is not the desired behavior. It may be useful to support this for some use-cases with e.g. a special container mode but I doubt this should be the default behavior for CDI in SE. Let's not forget to fix this.
> 
> 2) CDIProvider.isInitialized()
> 
> First of all, good job on removing the constraints, preventing multiple parallel container support, from the API. One missing piece seems to be CDIProvider.isInitialized(). The JavaDoc says: " Determines whether or not this CDIProvider has been initialized or not"
> 
> My understanding is that it is supposed to indicate whether a CDI object is in initialized state yet or whether it has been shut down. If my understanding is correct then this method should probably be moved to the CDI class instead. Due to the possible 1-to-n mapping between CDI and CDIProvider it's not correct to have this method on CDIProvider
> 
> Jozef
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