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no metaclass for class diagram? [message #476857]

Thu, 17 January 2008 04:08

Stefan Kuhn

Messages: 355
Registered: July 2009

Senior Member

hi modeling friends,

I knew that the uml-meta model doesn't define layout information. But I
was really surprised when I couldn't find a meta class which aggregates
all elements stored in a certain e.g. class diagram. Did I miss something?

-stefan

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Re: no metaclass for class diagram? [message #476858 is a reply to message #476857]

Thu, 17 January 2008 07:29

Rafael Chaves

Messages: 362
Registered: July 2009

Senior Member

Stefan,

I must confess I once too tried to find the metaclasses for the
diagrams. But after not finding them I realized that a diagram is just a
view that depicts an arbitrary set of elements from on or more packages,
that chooses to show some of the features of each element depicted.
Besides the presentation aspects, there is nothing left. The elements
certainly are *not* "stored" in a diagram.

Cheers,

Rafael

SKuhn wrote:
> hi modeling friends,
>
> I knew that the uml-meta model doesn't define layout information. But I
> was really surprised when I couldn't find a meta class which aggregates
> all elements stored in a certain e.g. class diagram. Did I miss something?
>
> -stefan

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Re: no metaclass for class diagram? [message #476859 is a reply to message #476858]

Thu, 17 January 2008 10:31

Tas Frangoullides

Messages: 195
Registered: July 2009

Senior Member

Hi,

If you want a general purpose way of representing diagrams, which can be
used for UML diagrams then take a look at the GMF project.
org.eclipse.gmf.runtime.notation contains an EMF model for this.

Tas

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