[gme-users] a problem with Proxy and Reference

[Christian Brunette]

Hi,

A proxy is a reference inside the metamodel. A reference is an object
which allow creating a proxy when using your metamodel. A reference can
refer to any type of FCO: atom, model, set, or other reference.
The difference between figure 1 and figure 2 is that:
- on figure 1, SFConstraint can only contain EventRef object which
refers to object of type Event. But SFConstraint cannot contain Event
object.
- on figure 2, SFConstraint can only contain Event object.

Hope this helps,
Christian

Song Zhu-mei wrote:

> Hi,
> I have a problem when using /Proxy/ and /Reference/.
> In the metamodel of ECSL, I see there is a /Reference/ between a
> /Proxy/ and a /Model/. Can a /Reference/ directly
> refer to an /Atom/? Can a /Proxy/ be directly contained in a /Model/?
> If yes, what is the difference when there is a
> /Reference/ between a /Proxy/ and a /Model/ and when there is none
> between them? As showed in Figure 1 and Figure 2.
> What is the difference and relationship between /Proxy/ and
> /Reference/. I am confused.
>
> Fig.1 without /Reference/ Fig.2 without /Reference/
>
> I have refered to GME Manual and the tutorials, but haven¡¯t found any
> help about this. There is only introduction about /Reference/ but no
> /Proxy. /Anyone can help me?
>
> Thanks a lot.
> Zhumei
> --
> Zhumei Song
> Ph.D Candidate
> College of Mechanical Engineering, South China University of
> Technology, Guangzhou, China.
> Phone: +86-20-87114637
> Email: melody78 at 126.com
>
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-- 
Christian Brunette
Post-doctorant in the ESPRESSO team
IRISA-INRIA, Campus de Beaulieu, 35042 Rennes cedex, France
Phone: +33 (0) 2 99 84 72 31, Fax: +33 (0) 2 99 84 71 71