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Is it possible to store uml models excluding class diagrams using Teneo or CDO? [message #83429]

Tue, 15 May 2007 14:56

Eclipse User

Originally posted by: dwkang.se.kaist.ac.kr

Hi,
Currently I'm trying to store use case diagrams and activity diagrams of UML
in database. But It's hard to find any materials that explain how to store
those diagrams using Teneo (or CDO). Examples use only class diagrams, and I
guess it's because class diagrams can represent metamodels that can be
converted to .ecore files. Am I right?

And I have one more questions. Is it possible to store additional
information rather than emf models in database using Teneo/CDO? For example,
date of model creation can be an attribute for searching. Is there any APIs
that support this feature?

Regards,
Dongwon

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Re: Is it possible to store uml models excluding class diagrams using Teneo or CDO? [message #83459 is a reply to message #83429]

Tue, 15 May 2007 18:03

Eclipse User

Originally posted by: stepper.sympedia.de

Dongwon,

I can only speak for CDO which works with all models that use Ecore as a meta model. That includes Ecore itself since that one is bootstrapped (implemented/expressed with itself). So from that point of view it does not make a difference whether you have class diagrams or other uml diagrams.

To use a model with CDO you must be able to regenerate it. The current stream of CDO (0.7) introduces a special base class into the model and contributes some include files to the EMF Jet templates. This is somewhat invasive to the models. The upcoming version of CDO (0.8) will only require to set a flag in the genmodel. Neither the core model nor the templates will have to be changed. But in any case you'll be in need of regenerating the model code. I'm not an expert in the UML2 implementation of Eclipse.org so I can't give an estimation on how easy it is to regenerate that model. If you gather any experience in that area I'd be interested to hear about it.

Cheers
/Eike

°µ¿¿ø schrieb:
> Hi,
> Currently I'm trying to store use case diagrams and activity diagrams of UML
> in database. But It's hard to find any materials that explain how to store
> those diagrams using Teneo (or CDO). Examples use only class diagrams, and I
> guess it's because class diagrams can represent metamodels that can be
> converted to .ecore files. Am I right?
>
> And I have one more questions. Is it possible to store additional
> information rather than emf models in database using Teneo/CDO? For example,
> date of model creation can be an attribute for searching. Is there any APIs
> that support this feature?
>
> Regards,
> Dongwon
>
>

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Re: Is it possible to store uml models excluding class diagrams using Teneo or CDO? [message #83472 is a reply to message #83429]

Tue, 15 May 2007 18:23

Martin Taal

Messages: 5468
Registered: July 2009

Senior Member

Hi Dongwon,
I can react regarding Teneo but I am not 100% sure what you mean, with Teneo you can store ecore
models (the instances of the model element). As the ecore model itself is also an ecore model you
can also store models itself (although this has not been tested thoroughly).
Teneo supports both persisting generated java classes as well as dynamic emf (so persist without
generating java classes).

Teneo/Hibernate does not store additional information other than for optimistic locking (a version
number/timestamp).

gr. Martin

°µ¿¿ø wrote:
> Hi,
> Currently I'm trying to store use case diagrams and activity diagrams of UML
> in database. But It's hard to find any materials that explain how to store
> those diagrams using Teneo (or CDO). Examples use only class diagrams, and I
> guess it's because class diagrams can represent metamodels that can be
> converted to .ecore files. Am I right?
>
> And I have one more questions. Is it possible to store additional
> information rather than emf models in database using Teneo/CDO? For example,
> date of model creation can be an attribute for searching. Is there any APIs
> that support this feature?
>
> Regards,
> Dongwon
>
>

--

With Regards, Martin Taal

Springsite/Elver.org
Office: Hardwareweg 4, 3821 BV Amersfoort
Postal: Nassaulaan 7, 3941 EC Doorn
The Netherlands
Tel: +31 (0)84 420 2397
Fax: +31 (0)84 225 9307
Mail: mtaal@springsite.com - mtaal@elver.org
Web: www.springsite.com - www.elver.org

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Re: Is it possible to store uml models excluding class diagrams using Teneo or CDO? [message #606694 is a reply to message #83429]

Tue, 15 May 2007 18:03

Eike Stepper

Messages: 6681
Registered: July 2009

Senior Member

Dongwon,

I can only speak for CDO which works with all models that use Ecore as a meta model. That includes Ecore itself since that one is bootstrapped (implemented/expressed with itself). So from that point of view it does not make a difference whether you have class diagrams or other uml diagrams.

To use a model with CDO you must be able to regenerate it. The current stream of CDO (0.7) introduces a special base class into the model and contributes some include files to the EMF Jet templates. This is somewhat invasive to the models. The upcoming version of CDO (0.8) will only require to set a flag in the genmodel. Neither the core model nor the templates will have to be changed. But in any case you'll be in need of regenerating the model code. I'm not an expert in the UML2 implementation of Eclipse.org so I can't give an estimation on how easy it is to regenerate that model. If you gather any experience in that area I'd be interested to hear about it.

Cheers
/Eike

°µ¿¿ø schrieb:
> Hi,
> Currently I'm trying to store use case diagrams and activity diagrams of UML
> in database. But It's hard to find any materials that explain how to store
> those diagrams using Teneo (or CDO). Examples use only class diagrams, and I
> guess it's because class diagrams can represent metamodels that can be
> converted to .ecore files. Am I right?
>
> And I have one more questions. Is it possible to store additional
> information rather than emf models in database using Teneo/CDO? For example,
> date of model creation can be an attribute for searching. Is there any APIs
> that support this feature?
>
> Regards,
> Dongwon
>
>

Cheers
/Eike

----
http://www.esc-net.de
http://thegordian.blogspot.com
http://twitter.com/eikestepper

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