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From Tim McConnell <tim.mcco...@gmail.com>
Subject Re: Multiple schema version support in GEP
Date Thu, 24 Jul 2008 18:59:59 GMT
Hi Sainath, that would be wonderful if you're going to have the time. When are 
you returning to college ??

Sainath Chowdary wrote:
> Thanks Ted and Tim for your feedback. I agree with both of you that we 
> cannot attempt this in trunk as next release is ahead of us in few weeks.
> 
> I would be happy to work on the proposed architecture for GEP once I get 
> back to my college. Also by that time I guess 2.1.2 would have been 
> released.
> 
> On Thu, Jul 24, 2008 at 6:49 AM, Tim McConnell <tim.mcconne@gmail.com 
> <mailto:tim.mcconne@gmail.com>> wrote:
> 
>     Hi Sainath, I agree with Ted as well. Your ideas seem sound but I
>     don't think we should attempt this in GEP trunk, which will soon be
>     released in conjunction with the 2.1.2 Geronimo server. As an
>     alternative, could you possibly work on this in the devtools sandbox ??
> 
> 
>     Sainath Chowdary wrote:
> 
>         I think that current architecture of GEP is too rigid in a way
>         which produces very redundant code if we extend it for future
>         versions of Geronimo. Also it is not compliant with multiple
>         version of schemas.The UI elements are also somewhat implemented
>         in a hacky way where v20 UI depends on v21 UI which should be
>         the opposite. We need to introduce proper hierarchy levels
>         according to schema/server versions in GEP MVC at this level
>         before GEP becomes overly complicated.
> 
>         For this I propose we change the architecture of our JAXB model
>         to provide support for multiple versions of schemas. With the
>         help of slight customizations we can easily make JAXB model
>         tailored for our purpose. The main task would be to create a
>         common pool of classes between the versions and initializing the
>         JAXB context properly. Assuming we support both v2.0 and v2.1
>         which respectively have geronimo-web-2.0.xsd &
>         geronimo-web-2.0.1.xsd, we will create a Interface that will be
>         implemented by both WebAppTypes so that in commn UI section we
>         can directly cast to the interface and in version specific UI we
>         can cast it to the particular version we are working in.
> 
>         After that we may need to refactor the code in ui plugins to
>         utilize the new hierarchy levels and extra functionality added.
>         Current architecture will easily achieve its bottleneck if the
>         schema changes frequently. I find it this is the ideal time to
>         reorganize the whole of GEP.
>         Any comments?
> 
>         -- 
>         Thanks,
>         Sainath Chowdary
>         B.Tech III yr, Spring Semester
>         Electronics & Communication Engg
>         Indian Institute of Technology Roorkee
> 
> 
>     -- 
>     Thanks,
>     Tim McConnell
> 
> 
> 
> 
> -- 
> Thanks,
> Sainath Chowdary
> B.Tech III yr, Spring Semester
> Electronics & Communication Engg
> Indian Institute of Technology Roorkee

-- 
Thanks,
Tim McConnell

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