How to reference ecore models from xbase expressions?

[iTob191]

To give a bit of context, I'm creating an SQL-like query language for ecore models and I'd like to implement conditions using Xbase expressions. A simple query might look similar to this:
select ... from SomeECoreClass c where c.someAttribute == 5
I'd like to have (a) IDE support (including validation, code completion) as well as (b) the ability to execute a given condition in the respective context (so in this example, the context holds an instance of SomeECoreClass in the variable c) using Xbase's interpreter.

My problem is that Xbase seems to rely on Java types and instances and I currently only have access to the ecore model (.ecore) and a dynamic instance of it (.xmi), so neither a genmodel nor the generated java classes. The simplest solution would of course be to get access to the generated java classes either by requesting the user of my language to provide them or by trying to generate them on the fly. I'd like to avoid this if somehow feasible.
The solution that I came up with is to generate jvm types for all referenced ecore models in addition to the jvm types for my own language in the model inferrer. And to make the interpreter work with this, I could maybe overwrite the relevant methods to check for instanceof DynamicEObjectImpl and use eGet instead of the default java reflection implementation. Not sure whether this is actually feasible though.

So my question is, whether there is another (better) solution that I'm not aware of? And if not, does my proposed solution sound feasible to you?

[iTob191]

The solution that I came up with is to generate jvm types for all referenced ecore models in addition to the jvm types for my own language in the model inferrer. And to make the interpreter work with this, I could maybe overwrite the relevant methods to check for instanceof DynamicEObjectImpl and use eGet instead of the default java reflection implementation.

This approach seems to work fine so far.

[LorenzoBettini]

@iTob191 by the way, in Edelta, https://github.com/LorenzoBettini/edelta, I use the XbaseInterpreter a lot also accessing Ecore models.