[cwienands]

Hey guys,

I am currently trying to get OCL constraints working in an EMF-based plug-in that in turn is based on an .ecore **** model.

To be honest, much of the information on the web was either EMF constraint validation OR use of OCL but very little how to use them together. I found one very interesting article: Eclipse Corner Article: Implementing Model Integrity in EMF with MDT OCL
Unfortunately, what Christian described in the article did not work for me. Specifically I don't get any files generated in the /templates folder and when I try the example source code, the generated code causes many compilation errors.

I kind of figure it has to do that this article was based on older Java and Eclipse versions. I'm using the modeling incubation of Eclipse v3.4.0.

Does anybody know a good up-to-date primer on how to get EMF and OCL working together?

Thanks a lot,

Christoph

[greg.fenton]

You might find this of interest for OCL validation:

EMF/New and Noteworthy/Helios - Eclipsepedia

Actually, this allows the creation of arbitrary validation deligates, so OCL is only one option to use in your model. Another deligate available soon will be NexJ Scheme:

NexJ Scheme - Ecore Adapter

Hope this helps,
greg.fenton