Can I reuse ECore models by importing them into other models?

Question

I have multiple Ecore files for different purposes. I am now developing a tool which uses multiple models.

Can I develop an ECore model which references other models? For example when I have A.Ecore and B.Ecore, how can I create a C.Ecore, in which I have attributes with types from A.Ecore or B.Ecore?

Answer 1

To reference one Ecore model from another:

1. Open the model needing the added reference in the Ecore model editor. In your example, open the file C.ecore .
2. Right click on the top item in the editor. In the below example, you would click on the platform:/resource.../webpage.ecore item.
3. Select "Load Resource", then browse the workspace to find the Ecore file you want to include. In your example, open the file A.ecore or B.ecore .

Answer 2

Loading a resource in the ECore editor lets you import other models. Once loaded, the types from other model can be used in the first model.