[weld-dev] Weld archetypes in the spotlight

Piotr Steininger piotr.steininger at gmail.com
Fri Feb 5 23:48:25 EST 2010


The application I thought of was aimed at reducing complexity and thus
barriers to entry. The particular use case I had in mind was:
I have a Weld + JSF app.Now I need to add bpm to the mix, so I would add
seam-bpm, but that's not the whole story. I need some extra configurations,
and maybe some boiler plate code to hook it all up, and possibly create some
process definitions and add them to the mix.

In another words, I think that some way of simplifying the process of adding
libraries and configuring them could be useful.

I did not consider the idea of CRUD, but it could be nice as well.

Bottom line is that I'd like us to explore ways to simplify and standardize
as many aspects of EE development as possible. I see this as a really good
selling point for the technology.



On Fri, Feb 5, 2010 at 9:27 PM, Steven Boscarine <
steven.boscarine at childrens.harvard.edu> wrote:

>  One significant difference is that an archetype gives you a starter
> application, but really knows nothing about your application.  A mojo can be
> run at different points of the maven lifecycle, but doesn't know much about
> the app it's being run on.  It's up to the mojo writer to turn the
> collection of classes and resources into meaningful pieces of an
> application.
>
> I can't speak for rails, but I know Grails actually is aware of your data
> and has a much richer model.  Grails can apply a template per each entity or
> database table in your application.  Maven, as of 2.2 (haven't looked at 3.0
> yet), has no idea what your domain is.
>
> For example, if you wanted to create a plugin that generated a CRUD app per
> each entity in your application, your Maven2 mojo would have to start from
> scratch and determine what your entities are.  It is my understanding that
> Grails plugins have convenient hooks to that data, controllers, service, etc
> (although someone who has actually written a Grails plugin before would be a
> better source of details on the subject).
>
>
>
> On 02/05/2010 06:06 PM, Arbi Sookazian wrote:
>
> That's interesting.
> The Basics of Creating Rails Plugins
>
> A Rails plugin is either an extension or a modification of the core
> framework. Plugins provide:
>
>    - a way for developers to share bleeding-edge ideas without hurting the
>    stable code base
>    - a segmented architecture so that units of code can be fixed or
>    updated on their own release schedule
>    - an outlet for the core developers so that they don’t have to include
>    every cool new feature under the sun
>
> http://guides.rubyonrails.org/plugins.html
>
> Sounds like CDI PEs (portable extensions) was a ripoff of this idea...  And
> wasn't seam-gen alarmingly similar to Grails in terms of quick project
> setup/startup?
>
> PE is strikingly similar to Rails plugins based on the above description
> when you think of Seam 3 having Weld as its new core and the "extras" like
> jBPM integration, remoting, iText, PDF, Excel, etc.
>
> Maven 2 already has the concept of MOJO (Maven POJO) and plugins:
>
> http://maven.apache.org/guides/plugin/guide-java-plugin-development.html
>
> Not sure what added-value you're suggesting??
>
>
> On Fri, Feb 5, 2010 at 2:34 PM, Piotr Steininger <
> piotr.steininger at gmail.com> wrote:
>
>> I totally agree. Weld archetypes are probably the best polished ones I
>> have ever seen. They remind me of some of the Rails semantics (get up and
>> running in minutes).
>>
>>  These similarities got me thinking about another aspect of Rails -
>> Plugins or gems (which I think is a mixed bag). The promise of plugins/gems
>> is that you can quickly add dependent code and do some setup in minutes as
>> well. I think that maven could very well be a platform to do the same.
>> Currently one has to add dependencies by hand and quite often tweak the
>> exclusions. With the introduction of maven console plugin, I think the door
>> became open to create maven plugins/console scripts to make this a more
>> automated process.
>>
>>  I don't have the expertise to create a prototype. I also don't know if
>> this is really something that could be useful in the community (or simply
>> serve as a tool for Maven newbies).
>>
>>  In any case, I wanted to see what the community thinks about this.
>>
>>
>>
>>  On Fri, Feb 5, 2010 at 5:06 PM, Dan Allen <dan.j.allen at gmail.com> wrote:
>>
>>>  The Weld archetype initiative has had a further reaching impact than
>>> just the community of developers interested in using CDI (via Weld). A
>>> recent blog entry on Sonatype cites the Weld archetypes as "the perfect case
>>> study of how using Archetypes benefits the community." Steven is
>>> acknowledged for his effort to identify the need of archetypes and
>>> ultimately get them promoted to Maven central for all to use.
>>>
>>>
>>> http://www.sonatype.com/people/2010/01/maven-archetypes-and-nexus-there-is-no-faster-way/
>>>
>>> Although archetypes are rather technically simple, it's important to
>>> recognize the impact they can have by starting people off on the right foot.
>>>
>>> -Dan
>>>
>>> --
>>> Dan Allen
>>> Senior Software Engineer, Red Hat | Author of Seam in Action
>>> Registered Linux User #231597
>>>
>>> http://mojavelinux.com
>>> http://mojavelinux.com/seaminaction
>>> http://www.google.com/profiles/dan.j.allen
>>>
>>>  _______________________________________________
>>> weld-dev mailing list
>>> weld-dev at lists.jboss.org
>>> https://lists.jboss.org/mailman/listinfo/weld-dev
>>>
>>
>>
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>
>
>
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