Re: [jboss-as7-dev] JBoss Modules: can I dynamically add dependency?
On 9/24/2012 8:15 AM, David M. Lloyd wrote:
Unfortunately this premise is flawed from the start: if you had two
apps, each requiring a different JSF implementation, this idea could
never work.
I'm not sure what you mean here. This is already working.
In any case you cannot change the dependencies of a static module at
runtime. Normally when multiple implementations are available you would
use reflection to instantiate the implementation you need. If this is
not possible then you'll need a separate module for each implementation
type.
That's the problem. It's not that I need to instantiate something.
Rather, I need to put jsf-injection in a position where the JSF impl
will find my service and instantiate it. So the way things are now I
have to statically define a new jsf-injection module for each JSF impl.
Those modules are exactly the same except for one dependency declaration.
If I could programatically define the module then I wouldn't have to
repeat myself.
Maybe JBoss Modules was never meant to be used that way?
On 09/24/2012 07:06 AM, ssilvert(a)redhat.com wrote:
> I have a module defined like this (currently in master with main and
> slot="1.2):
> <module xmlns="urn:jboss:module:1.1"
name="org.jboss.as.jsf-injection">
> <resources>
> <resource-root
> path="jboss-as-jsf-injection-7.2.0.Alpha1-SNAPSHOT.jar"/>
> </resources>
>
> <dependencies>
> <module name="com.sun.jsf-impl"/> <----- this needs to
be dynamic
> <module name="javax.api"/>
> <module name="org.jboss.as.web"/>
> <module name="javax.servlet.api"/>
> </dependencies>
> </module>
>
> Inside a DeploymentUnitProcessor, the module above is added to the
> ModuleSpecification along with the module for the selected JSF
> implementation. The problem I have is that the JSF Injection code is
> the same for any Mojarra implementation. But to support multiple
> implementations I need to declare a separate jsf-injection module with a
> hard-coded dependency on each implementation installed.
>
> If I could create a module dynamically and dynamically add its
> dependencies then there would be no need to create more and more modules
> containing the same jsf-injection jar.
>
> I've been looking at the JBoss Modules API and I don't see how to do
> this. Is it possible?
>
> Stan
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