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From David Jencks <david_jen...@yahoo.com>
Subject Re: geronimo-dependency.xml
Date Fri, 12 Oct 2007 15:42:18 GMT

On Oct 12, 2007, at 8:28 AM, Prasad Kashyap wrote:

> A quick investigation into this gave rise to some insights and more  
> questions -
>
> Insights:
> 1) An explicit-versions.properties gets generated by the PackageMojo
> while building every config.
> 2) I doubt if this is getting serialized into the car. So I am unsure
> if this ever gets used.

It is used when "compiling" the car file.  It's intended only to  
restrict the c-m-p view of the local maven repo to make it look more  
like a geronimo repo.  It would definitely not be appropriate to use  
it at any other time.

> 3) An explicit-version.properties gets generated by the
> InstallModulesMojo while building assembles in 2.0 but not in trunk.
> 4) And obviously, we are not using InstallModulesMojo for assembly  
> in trunk.

Actually we are using InstallModuleMojo in trunk, however it now uses  
the PluginInstallerGBean to do all the work.  Since we're using the  
same plugin installer as we would be in a running geronimo server,  
there is no way to figure out what an appropriate explicit- 
version.properties would be or no way to send one from the maven  
environment into the plugin.

>
> Questions:
> 1) what is the explicit-version.properties used for (in configs and in
> 2.0 assembly) ?

As noted above, to filter the maven repo to the versions specified in  
the pom
> 2) what is the geronimo-dependency.xml used for ? (a handful of
> modules contain it)

This is geronimo's "transitive depenendency" feature.  When you  
include a jar with such a file in a configuration's dependencies, all  
the jars listed in the g-d.xml file also get included (recursively).

I'm not longer sure this g-d.xml file is a wonderful idea.  There  
aren't that many of them and they seem to mostly cause confusion.
>
> Thanx
> Prasad
>
>
>
>
>
>
> On 10/12/07, Jarek Gawor <jgawor@gmail.com> wrote:
>> Folks,
>>
>> In trunk, I've noticed that dependencies specified in
>> geronimo-dependency.xml without an explicit version get resolved  
>> to an
>> incorrect version when installed. For example, the root pom defines
>> geronimo-schema-j2ee_1.4 dependency with version 1.2. But in the  
>> final
>> javaee assembly only the version 1.1-SNAPSHOT was installed. I see  
>> the
>> same issue with other such dependencies.
>>
>> Is anyone else seeing that too? Looks like we will need to specify
>> explicit versions in the geronimo-dependency.xml files. If so, how do
>> we keep the versions in synch with the root pom?

I'm starting to wonder if we should abandon the idea of allowing you  
to leave out versions in dependencies so geronimo will pick up the  
latest available.  The alternative hot-upgrade method would be to  
explicitly map the old version to the new version in  
artifact_aliases.properties.  If we decided on this approach we could  
insert all the versions into the g-d.xml during the build.

This would be a major philosophical change so I'd definitely like  
some discussion before we decide.

thanks
david jencks

>>
>> Jarek
>>


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