BGU - Multi Model Implementation

[amielsaa]

Hello Lars,
We have started implementing the multi model feature, by adding the rule discussed with Mira in USEBase.gpart.
We added a few classes that correspond to the parsing rules, and we want to make sure we're on the right track.
I've attached the commits in our fork, thanks a lot!
The files we modified are: USEBase.gpart, Context.java, ASTMultiModel.java, MMultiModel.java, ModelFactory.java
commit : sturmarn@a76efda

[h-man2]

Hello!

I reviewed the commit and it looks good to me.

Best regards!

Lars

[amielsaa]

Hello @h-man2,

We encountered some issues while working on the multi-model feature, and we'll be happy if you can give us your opinion.
Issue 1:
we found a bug in our implementation where an error is thrown if you have 2 internal models both with a class named 'A'.
we have a couple of solutions in mind and would like your opinion

• Option 1: change the way classes get their names - so that a class with the name 'A' in internal-model1 will be renamed to 'A_internal-model1' and so all the class's names will be unique (because the internal models' names are unique)

• Option 2: create a new Context object for each generated model - so our first model will be associated with 'ctx1' object, and our second model will be associated with a 'ctx2' object, but with the same error and modelFactory pointers.

Issue 2:
The way Multi-Models should be loaded into USE, what's a better approach:

• Option 1: To enable USE to open multiple regular model files and parse them as a multi-model (which means changing the way you implemented the file explorer).

• Option 2: make it so you can only open a single file with a multi-model inside, and it will be up to the user to understand the new syntax of the multi-model. (if necessary, we can make an external tool to combine the multiple regular models into a single multi-model file)

If you have a better idea for each of the issues we'll be happy to hear them!

Thanks a lot for your help!

Amiel & Gil