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[EMF] Define values for attributes inherited from defining class [message #1801225]

Tue, 15 January 2019 15:46

Philipp Helle

Messages: 1
Registered: January 2019

Junior Member

I have the following in an ecore model:

- EClass MyParameter defines a parameter by Name and Type

- EClass MyModel has a list of parameters (contained unbounded reference list)

- EClass MyModelInstance has an attribute of Type MyModel Class, showing that the MyModelInstance is typed by a MyModel Class
I would like to fill out concrete values of the parameters at this level.

E.g.:
MyParameter:
name: Color
type: (enum: blue, red)

MyModel:Car
Attribute: name color; Type Color

MyModelInstance:RedCar
Attribute: name color ->value: red

MyModelInstance:BlueCar
Attribute: name color ->value: blue

How do I manage that all parameters defined on the model level appear at the instance level and that I can set the values there?

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Re: [EMF] Define values for attributes inherited from defining class [message #1801320 is a reply to message #1801225]

Wed, 16 January 2019 17:19

Ed Willink

Messages: 7655
Registered: July 2009

Senior Member

Hi

"Parameter" is normally used for the argument of a Function/Operation. I presume you mean Feature/Property. Ecore supports default values for EStructuralFeatures; just look in the Properties View.

Regards

Ed Willink

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Re: [EMF] Define values for attributes inherited from defining class [message #1801346 is a reply to message #1801225]

Thu, 17 January 2019 09:45

Erdal Karaca

Messages: 854
Registered: July 2009

Senior Member

Philipp Helle wrote on Tue, 15 January 2019 16:46

How do I manage that all parameters defined on the model level appear at the instance level and that I can set the values there?

What does "apear" mean in your context? Are you developing an editor where you edit your model and its instances?

It seems you are creating a meta-meta-model. Ecore already supports dynamic models that you could use.

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