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How do you extend a PrimitiveType? [message #1738910]

Tue, 26 July 2016 05:49

Philippe de Rochambeau

Messages: 40
Registered: February 2013

Member

Hello,
I'm trying to create a Money Type derived from an UML PrimitiveType such as Real.
Can you do that in Papyrus 2.0?

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Re: How do you extend a PrimitiveType? [message #1738935 is a reply to message #1738910]

Tue, 26 July 2016 08:39

Ed Willink

Messages: 6755
Registered: July 2009

Senior Member

Hi

You can in UML and I see no reason why it should be a problem in Papyrus.

However PrimitiveTypes are primitive and so IMHO it would be much better
to use a DataType, with a <<Real>> stereotype from OCLforUML.

Prior to OCLforUML, it was necessary for OCL tooling to try to deduce
whether an XXX::Boolean was the same type as a YYY::Boolean e.g. SysML /
UML / OCL / Ecore / ...) and so I extended the pragmatism that
CollectionType specializations are equal by local name regardless of
their namespace to treat PrimitiveTypes as equal regardless of their
namespace. Consequently your MoneyType PrimitiveType is on the way to
being equal to someone else's MoneyType PrimitiveType. Better not to use
PrimitiveTypes for non-primitive concepts.

Regards

Ed Willink

On 26/07/2016 06:50, Philippe de Rochambeau wrote:
> Hello,
> I'm trying to create a Money Type derived from an UML PrimitiveType
> such as Real.
> Can you do that in Papyrus 2.0?
>

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