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From "Cabrera, Alan" <>
Subject RE: Geronimo Deployment Descriptors -- and premature optimisation
Date Wed, 10 Sep 2003 17:22:20 GMT

> -----Original Message-----
> From: Bill de hÓra [] 
> Cabrera, Alan wrote:
> > 
> >>-----Original Message-----
> >>From: Bill de hÓra []
> >>
> >>Fwiw, the answer to this problem is to eliminate implmentation
> >>specific descriptors where possible. To paraphrase jwz - some 
> >>people, when confronted with a vendor specific J2EE 
> descriptor think 
> >>"I know, I'll use a deployment tool." Now they have two problems.
> > 
> > 
> > I'm not sure if this is an argument to eliminate implementation 
> > specific descriptors where possible or a commentary on the current 
> > state of deployment tools.
> :)
> I'd like to think that in some alternate reality, there is a J2EE 
> spec where the specified descriptors are adequate for building J2EE 
> backed systems.
> But... I'd also like to be in a situation some time from now where I 
> could deploy to Geronimo without using any Geronimo specific 
> descriptors. Maybe that's just not possible, or maybe we're simply 
> inured to vendor specific descriptors as a way of working, but in 
> any case, I would argue that Geronimo look to minimize the 
> descriptors it needs over and above the J2EE ones. The tools 
> argument is secondary to that imho.
> > If you are using the latter to justify to former I would think that 
> > this would be a case of the tail wagging the dog.
> I'd hate to see it come to pass that descriptors got piled onto to 
> Geronimo with impunity because the deployment tools were good - I 
> have no doubt whatsoever that the community involved can write 
> excellent deployment tools. But if I wanted to be locked-in (and 
> that is the bottom line with vendor specific descriptor metadata), I 
> wouldn't be interested in J2EE to begin with.

In my alternate reality, ;), fierce competition would lead to such constant
innovation that there would always be vendor specific descriptors.

To be sure, indiscriminate piling on of Geronimo descriptors with impunity
would be a bad thing; I see no discussion here even intimating that
scenario.  And even if it did happen, I, an application developer, would not
be locked-in because I am following the J2EE spec.


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