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Home » Modeling » UML2 » no metaclass for class diagram?
no metaclass for class diagram? [message #476857] Thu, 17 January 2008 04:08 Go to next message
Stefan Kuhn is currently offline Stefan KuhnFriend
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
Re: no metaclass for class diagram? [message #476858 is a reply to message #476857] Thu, 17 January 2008 07:29 Go to previous messageGo to next message
Rafael Chaves is currently offline Rafael ChavesFriend
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
Re: no metaclass for class diagram? [message #476859 is a reply to message #476858] Thu, 17 January 2008 10:31 Go to previous message
Tas Frangoullides is currently offline Tas FrangoullidesFriend
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
Re: no metaclass for class diagram? [message #625906 is a reply to message #476857] Thu, 17 January 2008 07:29 Go to previous message
Rafael Chaves is currently offline Rafael ChavesFriend
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
Re: no metaclass for class diagram? [message #625907 is a reply to message #476858] Thu, 17 January 2008 10:31 Go to previous message
Tas Frangoullides is currently offline Tas FrangoullidesFriend
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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