Project structure with multiple modules

Hi all,

Currently, I'm developing a small application with Grails and Eclipse RCP. Communication should go through hessian or burlap.

Currently, the project-server and project-domain are together in one module, so my current directory structure looks like this:

project-client

project-services

project-server

The plan is to split this into multiple modules, like we do when developing something with Maven. The plan is to split it into the following modules:

project-client (RCP client, dependency on services and domain)

project-domain (Groovy domain model, no dependencies)

project-services (Java service interfaces, dependency on domain)

project-server (The grails app, with dependencies on services and domain).

Now, I have a hard time figuring out how to do this. I'm even wondering if  this is the right approach. If it would have been a plain Java application, I would surely go for this approach, and maybe even split the server into an services-impl part. But I'm using Grails, and I find that some things are different. Some of the problems I face are related to the Grails Domain Objects, which I want to share between all the projects. I don't think it's a good idea to have two (or more) domain models which all represent the same domain.

So I have a couple of questions:

- Is it possible to put the domain model into a different project, and have Grails depend on it (like Maven), while still maintaining the hot-reload support Grails provides?

- Or, if the above is not possible: is it possible to export the domain? I've created a small script now which does exactly that: compile all the groovy files, put them in a jar, and even call Maven (with a Java ProcessBuilder, I don't know if there's a better way..).

The current approach is: compile domain, install into maven repository, compile the services (which have a dependency on the groovy domain), and after that, build the war, which have a dependency on the services, because the Grails remoting plugin needs a Service to implement an interface.

So, I hope I made my problem a bit clear, but I can imagine it's a bit complicated by the way I tell it. So, if you need more information, please let me know, but I'm really curious how you would solve, or have solved, a thing like this!

Thanks in advance,

Erik

NB: Sorry for posting this here, I think it's more suited for the user list, but I seem to have some problem posting on the user list, with both my email addresses....