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[KM3] Problems with meta-model extension [message #580108]

Fri, 09 July 2010 11:04

Alvaro Jimenez Rielo

Messages: 41
Registered: July 2009
Location: Rey Juan Carlos Universit...

Member

We are making an extension of a meta-model defined in KM3.
In this new extension we want to avoid inheriting some attributes and we don't know how to do it.

We have consulted the documentation and haven't found any solution to do it.
We also tried to redefine these attributes to have other behaviour but don't work.

Could you tell us how to do it?

thanks

Best regards

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Re: [KM3] Problems with meta-model extension [message #580132 is a reply to message #580108]

Fri, 09 July 2010 13:50

Frédéric Jouault

Messages: 572
Registered: July 2009

Senior Member

Hello,

Metamodel extension works by adding new elements, not removing elements (i.e., it is from this point of view similar to class inheritance in Java).

Supposing you have metamodel A, and you want metamodel B to extend a part of A and drop the rest. The best solution I can think of right now is to define metamodel C that corresponds to the common parts between A and B. Then A and B may extend C.

Best regards

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