To me that seems over complicated in that you need a whole other sub-
system in Maven to define the requirements of a target. Why not just
state explicitly what the target needs and dispense with the rest of
the machinery. Dependencies accrued via profiles is a very nasty beast
in the project builder.
On 31-Jul-08, at 7:59 AM, Daniel Kulp wrote:
Yea, there are bunches of examples. Any JAX-WS or JAXB thing
wouldn't need the jaxb/jaxws api jars if running on Java 6. Recent
xml apis are in java 5. Java 7 will probably have a ton of other
things.
I'm wondering if we could activate profiles based on classifiers.
<profile>
<activation>
<classifier>jdk15</classifer>
</activation>
<dependencies>
.....
</dependencies>
</profile>
or similar.
Dan
On Jul 31, 2008, at 10:53 AM, Jochen Wiedmann wrote:
On Thu, Jul 31, 2008 at 4:43 PM, Jason van Zyl <[EMAIL PROTECTED]>
wrote:
If it is the case where it is common that for a given GAV the
classified
artifact requires different dependencies then I think we have some
flaws in
the system.
But that seems to be quite naturally to me. Consider the case of a
jar
file which has been processed by RetroTranslator or something
similar.
The artifact with the jdk14-classifier might (for example) need
additional retrotranslator libraries. It might also need jaxp3 and
lots of other stuff thats in JDK 1.5 by default.
That said, if people know of many cases where a classified
artifact does
indeed require changes in the dependency set I don't think we can
use
classifiers. The asymmetry in the requirements for an artifact
with a
classifier look problematic in this case. For an artifact that
participates
in a build or runtime, it needs a POM of its own if the system is
going to
be deterministic.
Ok, but in that case I would also suggest to reconsider the "one
artifact per project" dogma. At least, I wouldn't be overly happy to
split a lot of projects into multiple just because they finally run
retrotranslator to obtain a JDK 1.4 version.
Jochen
--
Look, that's why there's rules, understand? So that you think before
you break 'em.
-- (Terry Pratchett, Thief of Time)
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Daniel Kulp
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http://www.dankulp.com/blog
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Thanks,
Jason
----------------------------------------------------------
Jason van Zyl
Founder, Apache Maven
jason at sonatype dot com
----------------------------------------------------------
In short, man creates for himself a new religion of a rational
and technical order to justify his work and to be justified in it.
-- Jacques Ellul, The Technological Society
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