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From David Le Strat <dlest...@yahoo.com>
Subject Re: [JETSPEED 2] Choosing a component framework/micro-kernel
Date Wed, 15 Oct 2003 15:21:17 GMT
FYI, I found an interesting article comparing the
Spring/Avalon and PicoContainer framework.


Interesting quote from the article:

"Avalon's most important container implementation,
Phoenix, targets standalone applications like full
servers. Avalon has its advantages there, as it has
been designed for start/stop cycles etc. The only
stable implementation for embedded use like within a
web application is Fortress, which competes with
Spring's bean container. Spring focuses on embedded
usage as application context, it does not aim to be a
foundation for server processes. And of course,
Spring's feature set for application development goes
far beyond the bean container itself."

I guess the choice boils down to what we are trying to
- What is the primary purpose of the service
framework? Provide server services? Provide web
application services? Should Jetspeed provide/use a
framework for developing reusable portlets components
(as opposed to core portal services)?
- What core functionality should the service framework
provide? AOP, JTA, etc...

Just my two cents.  In any case, I like David ST
approach to create a commons like layer avoiding to
get too tightly coupled with the chosen service

Best regards,


--- "Weaver, Scott" <Sweaver@rippe.com> wrote:
> I have been evaluating component/service/kernel
> frameworks.  So far, I really like what I see in
> Avalon Phoenix, it seems right down the alley of
> what we are trying to accomplish.  It also has
> built-in in JMX to manage components.
> I briefly looked at picocontainer, very cool,
> however it is somewhat young where as Phoenix has
> quite a few projects built upon it, including Apache
> James.  Same goes for Hivemind with respect to being
> a less mature project.
> I would love if everyone who has used/researched any
> of these products give me a summary of their
> findings/experiences so as we can make the best
> choice for Jetspeed.
> I realize we had a recently discussed this in passed
> thread, but I want to keep this alive as we need to
> make this decision very soon.  Plus, I want to have
> as much community involvement/input on this choice
> as possible.
> Regards,
>  ________________________________
> |                                |
> | Scott T Weaver                 |
> | <weaver@apache.org>            | 
> | Apache Jetspeed Portal Project |
> | Apache Pluto Portlet Container |
> |________________________________|

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