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Re: [stp-dev] Intermediate Hybrid Model Discussion
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Hi David,
Thanks for the suggestions, they are both very useful. I think that
in the new version of the model (that I just announced on the mailing
list) the contract can be defined using properties, by creating a
particular property definition (if it's an informal document this
might work). Same for the 'metadata' map you mentioned. If the
contract is a service definition, then perhaps our Service component
would suffice as well, if we agree that for each contract, there is a
service element (there is some conceptual overloading here, I know).
For instance, in SCA, a service may have only one interface, so we'd
not run into trouble with the current model.
Let me know if you think that we lack expressivity with the Service
and property elements, perhaps with an example.
Thanks,
Adrian.
On Aug 28, 2007, at 2:26 PM, David Bosschaert wrote:
Hi Adrian,
Thanks for posting that. This is certainly very useful.
Just a few additional ideas here:
On the meta model, it might be useful to have a Service Contract
associated with the Service, as all types of Services typically
have some sort of a contract or other - I know certain editors/
technologies may not deal with the interface directly, but its
normally there somehow. This could be WSDL, a Java interface, XML
Schema or even a worddoc describing how it's used.
Also, it might be good to add a 'metadata' map to the Service where
arbitrary key-value pairs can be registered. This could be used by
editors to enhance the metamodel with optional extra metadata that
the transformations could use to make the migration from one model
to another smoother / less lossy.
Just my 2c,
David
Adrian Mos wrote:
Hi David, all,
I have created a page that illustrates a sample scenario involving
the meta-model at http://wiki.eclipse.org/
Sample_scenario_involving_the_intermediate_meta-model
It is rather rudimentary and does not cover the entire set of
entities of the meta-model but I believes it captures the
essential functionality (i.e. moving between editors that deal
with different SOA concerns).
I imagine some things might need further clarification, I will
update the page appropriately as questions arise.
best regards,
Adrian.
On Aug 24, 2007, at 5:43 PM, David Bosschaert wrote:
Hi Adrian,
Do you think you can provide the example as discussed well in
time to consider it with the proposal. It would greatly help my
understanding of the proposed model.
Thanks!
David
Adrian Mos wrote:
Forgot to attach the link referred to in the text...
[1] http://wiki.eclipse.org/MinutesAug23
On Aug 24, 2007, at 5:21 PM, Adrian Mos wrote:
Hi Guys,
To follow-up to Adrian Skehill's email, we had an interesting
discussion [1] regarding the proposed intermediate model to be
used in STP (by editors that want to benefit from facilitated
state transfer). We would like to speed up the conceptual phase
of this model and start its implementation so I am proposing
the date of Friday 31st as the last day to make any changes to
it. This would allow us to move forward quickly and not hold
back developments on components where this will be used such as
the Service Creation component. So please come forward with any
suggestions and additions to it until next Friday.
best regards,
Adrian.
---------------
*Adrian Mos*
ObjectWeb Project
SOA Technical Lead
adrian.mos@xxxxxxxx <mailto:adrian.mos@xxxxxxxx>
+33 4 76 61 54 02
*INRIA Rhone-Alpes*
655 avenue de l'Europe - Montbonnot
38 334 Saint Ismier Cedex France
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