| Model Extensions? [message #573193] |
Fri, 28 April 2006 22:22 |
 Stefan Vaillant
Messages: 9
Registered: July 2009 |
Junior Member |
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Hi,
how can the SQL Model of DTP be extended for a certain RDBMS vendor?
http://wiki.eclipse.org/index.php/Specialized_Database_Suppo rt#Model_Spe=
cialization
explains that the EMF model should be extended.
Somehow that would not do it for us, as we would like to have support fo=
r =
_multiple_ vendors in one model.
Even if we would extend the model for all RDBMS vendors that we need, I =
=
guess we could not reuse tools on top of DTP with our extended models:
- Tools would need to detect our extensions, but I'm not sure how easy =
that is with EMF.
- Tools could ignore our extensions, but at least then they should not =
remove our extensions when writing the file back
(AFAIK that can be done with EMF, but is not super trivial).
I would have expected to see more like an annotation mechanism, like in =
=
EMF or XML Schema.
That of course only works if extensions are simply structured, but I =
wonder if that would be sufficient.
Thanks for hints,
Stefan
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