08-05-05 10:45 PM
On Fri, Aug 05, 2005 at 01:54:15PM -0700, Craig Russell wrote:
> Hi Trygve,
> On Aug 5, 2005, at 11:50 AM, Trygve Laugstøl wrote:
>
> On Fri, Aug 05, 2005 at 11:37:25AM -0700, Craig Russell wrote:
>
> Hi Brian,
> How about the artifact apache-jdo-incubating, and the current ja
r
> and pom
> scheme:
> jars/jdo2-query-SNAPSHOT.jar
> jars/jdo2-query-20050805.150654.jar
> poms/jdo2-query-SNAPSHOT.pom
> poms/jdo2-query-20050805.150654.pom
> And so forth for the 10 projects. It seems that we want to keept
he
> current sub-project names (we finally like them I think) and ifw
e
> need to
> add "incubating" to the name, fine by me.
> The sub-projects already include the jdo1 or jdo2 as part of the
> name,
> which is important. And having the version number SNAPSHOT is go
od.
> Craig
>
> I was wondering why you need to include the version in the artifact i
d?
> This will become a annoyance in the future with Maven 2 and the other
> tool
> that has support for transitive dependencies[1]. In Maven 2 you
can
> have
> a dependency on artifact A and Maven will look at A's POM and figureo
ut
> that A depends on X and Y and include those for you.
>
> This sounds like a fine feature and I don't see the issue with JDO1 and
> JDO2. A project will choose which jar to build against and maven will d
o
> the right thing.
>
> Now this become a issue as you can't have both JDO 1 and JDO 2 in you
r
> class path at the same time
>
> This is true because of intrinsic differences between the two jars. An
> application built against JDO 1 will need the JDO 1 jar files, and won'
t
> work with JDO 2. We have implemented source compatibility but binary
> compatibility turned out to be not practical. So once you choose JDO 2,
> you need to depend on the JDO 2 jar and the JDO 1 jar is worthless.
Ok, sorry, I was assuming that they where going to be binary compatible.
I'm just wondering why was it hard to be binary compatible? As far as I
can tall all changes are binary compatible, but of course I don't have the
full overview.
>
> because if A depends on "jdo1" and B depend on
> "jdo2" I will end up with both of them in my class path. If they both
> had
> the artifact id "jdo" Maven's versioning mediation will take care of
> selecting one or the other based on the current strategy (the strateg
y
> by
> default is to pick the version specified 'neareast' the currently
> building
> project).
>
> I'm not sure whether this is an issue based on the discussion above. An
y
> project will be using either JDO 1 or JDO 2 and there's no decision for
> maven to make. And all projects that share a class path have to chooset
he
> same one.
Yes it was. Thanks for your clarifications and for getting the JDO
snapshots to the repository will for sure make my life better.
--
Trygve
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