Re: [Springframework-developer] Creating reusable component packages with Spring

[<jas...@ma...>]

Its an interesting question. Just one immediate thought; I can see=20
there being a need for a Spring deployment unit of some kind; e.g. a=20
jar containing an applicationContext.xml file in APP-INF/ or something=20=

- maybe having any additional jars required inside the jar in=20
APP-INF/lib.

One there's a deployment unit we can add native support to Geronimo=20
(and other containers could support it too) plus we could support hot=20
deployment of units inside Spring natively rather than relying on the=20
J2EE deployment units (WAR / EAR / RAR)

If there was a deployment unit; the only real issue is how to handle=20
cross-deployment unit references; but we could always use JNDI / JMX=20
for that or use a hierarchy of BeanFactory instances.


On 9 Nov 2004, at 22:51, James Cook wrote:
> We have been developing a large enterprise application using Spring=20
> and it
> has proven to be a very effective framework. We use the Data access
> abstractions heavily, along with transaction management and Hibernate
> support.
>
> Now that we have most of the concepts down, some coworkers and myself=20=

> are
> now considering the challenges inherent in packaging our business=20
> objects,
> service layers, spring configuration files, etc. into reusable=20
> component
> packages. We want to be able to give other developers in the company a=20=

> jar
> file that contains all of this content and simply drop it into their
> project.
>
> There are a lot of similarities (and differences) between what we face=20=

> and
> what EJB components deal with. EJB has solutions for mapping=20
> dependencies in
> a component package to the primary application (ejb-ref, etc.) and we=20=

> are
> beginning to talk about how to accomplish similar behavior using=20
> Spring.
>
> Ultimately, there are probably many nuances to this process that we=20
> won't
> know until we actual do it, but I was wondering if the development=20
> team has
> some insight into some of the Spring features that already exist that=20=

> can
> assist in some of these challenges? Perhaps also there are some=20
> features
> that are on the drawing board to assist in this matter also?
>
>
>
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James
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