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From "Richard S. Hall" <he...@ungoverned.org>
Subject Re: What about Felix Commons
Date Fri, 09 Mar 2007 14:14:23 GMT

Alin Dreghiciu wrote:
> A kind of "urgent" question:
> Shall the exported packages of the wrapped jar contain the version of the
> jar? Something like:
>            <Export-Package>
>              *;version=${pom.version}
>            </Export-Package>

I assume by "version of the jar" you mean the released version of the 
wrapped JAR. If the packages in foo.jar are versioned as a whole (like 
most typical releases), then yes, the exported packages should be 
exported with the associated version.

If the wrapped JAR contains various packages that are versioned 
separately, then the various packages should have their corresponding 

Keep in mind that there will also be the Bundle-Version which is 
independent of the package version. The package version should be the 
one assigned by the original developer of the code. The Bundle-Version 
will be assigned by the creator of the bundle wrapper pom...perhaps we 
should adopt a common Bundle-Version for this first round.

I just looked at commons-collections and (assuming that I am reading the 
pom correctly) I think it may have been done incorrectly. It has the 
overall bundle-version as 3.2 (i.e., it has <version>3.2</version>), but 
doesn't appear to attach any version to the packages. So, ultimately, 
this means that you would have an exported package that looked like this:

    Export-Package: foo; version=0.0.0; bundle-version=3.2.0

This is not what we want. We want to version our bundles according to 
their degree own version history, so for example our first attempt might 
be "0.8.0" or something, but the exported packages are whatever the 
original developer says they are. So for commons-collections, we really 
want to set <version>0.8.0</version> and tell BND to export with 
version=3.2.0. Thus, we would end up with exports like:

    Export-Package: foo; version=3.2.0; bundle-version=0.8.0

-> richard

> Alin Dreghiciu
> On 3/9/07, Alin Dreghiciu <adreghiciu@gmail.com> wrote:
>> Thanx Enrique,
>> I will update some of the pom's that I posted today so you will have 
>> them
>> for weekend.
>> I agree with Carlos that we should get the ball rolling and use them.
>> Later one we can refactor.
>> Alin Dreghiciu
>> On 3/8/07, Carlos Sanchez <carlos@apache.org> wrote:
>> >
>> > this is the first step, having a public place for consumption of osgi
>> > bundles, with osgi manifests and OBR metadata.
>> > I'm still puting all pieces together for osgi-maven relation, I'll
>> > keep informe after i digest all the stuff i'm finding out ;)
>> >
>> > On 3/8/07, Enrique Rodriguez <enriquer9@gmail.com> wrote:
>> > > On 3/8/07, Carlos Sanchez <carlos@apache.org> wrote:
>> > > > I'm also interested on this, i was talking with several people at
>> > > > EclipseCON and also here on the list, and seems that having an
>> > > > equivalent to the maven repository with osgi bundles and OBR
>> > metadata
>> > > > would be a good way to go.
>> > >
>> > > Would anything change at the same time about how m2 processes
>> > > transitive dependencies?  How could this repo support better the
>> > > "Import/Export" model (as opposed to the "Require Bundle" model)?
>> > >
>> > > It would be nice to better align m2 with the OSGi "Import/Export"
>> > > model.  In any case, seeing OSGi with first-class support in m2 
>> would
>> > > be great.
>> > >
>> > > Enrique
>> > >
>> >
>> >
>> > --
>> > I could give you my word as a Spaniard.
>> > No good. I've known too many Spaniards.
>> >                              -- The Princess Bride
>> >

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