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Home » Modeling » EMF » Standalone EMF validation not registering constraints(how to add the modeledConstraintProviders extension point)
Standalone EMF validation not registering constraints [message #660339] Fri, 18 March 2011 01:23 Go to next message
No real name is currently offline No real nameFriend
Messages: 2
Registered: March 2011
Junior Member
Hi,

I am trying to invoke EMF Validation from my class using
IBatchValidator validator =
(IBatchValidator)ModelValidationService.getInstance().newVal idator(EvaluationMode.BATCH);
ModelValidationService.getInstance().loadXmlConstraintDeclar ations();
validator.setIncludeLiveConstraints(true).

But going forward the constraints in plugin.xml are not invoked.
I was going through posts and found https://bugs.eclipse.org/bugs/show_bug.cgi?id=167972, can someone please give an example of how can I add modeledConstraintProviders extension point, what is the ConstraintResourceURI it is expecting.
I could not find the example in eclipse help content for this extension point

Thanks for your response
Re: Standalone EMF validation not registering constraints [message #660345 is a reply to message #660339] Fri, 18 March 2011 02:58 Go to previous messageGo to next message
Ed Merks is currently offline Ed MerksFriend
Messages: 30553
Registered: July 2009
Senior Member
The subject line mentions "standalone" but the body of your comment
doesn't mention that. Nor does it contain any question marks. Perhaps
you'd like to spend a little more time formulating a coherent question...

ssaharan@cisco.com wrote:
> Hi,
>
> I am trying to invoke EMF Validation from my class using
> IBatchValidator validator =
> (IBatchValidator)ModelValidationService.getInstance().newVal
> idator(EvaluationMode.BATCH);
> ModelValidationService.getInstance().loadXmlConstraintDeclar
> ations();
> validator.setIncludeLiveConstraints(true).
>
> But going forward the constraints in plugin.xml are not invoked.
> I was going through posts and found
> https://bugs.eclipse.org/bugs/show_bug.cgi?id=167972, can someone
> please give an example of how can I add modeledConstraintProviders
> extension point, what is the ConstraintResourceURI it is expecting.
> I could not find the example in eclipse help content for this
> extension point
>
> Thanks for your response
Re: Standalone EMF validation not registering constraints [message #660353 is a reply to message #660345] Fri, 18 March 2011 04:52 Go to previous messageGo to next message
No real name is currently offline No real nameFriend
Messages: 2
Registered: March 2011
Junior Member
Okay let me ask my question again more clearly:
I am trying to invoke EMF Validation from a standalone jar i.e. it is not being used from within eclipse or eclipse RCP. I have a main method in one of my class from which I am invoking Validation using this code:
// Invoke validation framework as usual
IBatchValidator validator =
(IBatchValidator)
ModelValidationService.getInstance().newValidator(Evaluation Mode.BATCH);
validator.setIncludeLiveConstraints(true);
IStatus status = validator.validate(objs); // where objs is my EObjects to be validated

If I do System.out.println(status), I get "Status OK: org.eclipse.emf.validation code=10 No constraints were evaluated. null" even though Validation error is there.
While trying to investigate the issue, I found this post https://bugs.eclipse.org/bugs/show_bug.cgi?id=167972 where it is stated that EMF Validation 1.4.0 provides standalone support. My question is how to use modeledConstraintProviders extension point to get the constraints registered ? An example will be helpful as to what should be the ConstraintResourceURI in the extension point and the class it will define?

Thanks,
Surekha
Re: Standalone EMF validation not registering constraints [message #660451 is a reply to message #660353] Fri, 18 March 2011 13:35 Go to previous message
Ed Merks is currently offline Ed MerksFriend
Messages: 30553
Registered: July 2009
Senior Member
Surekha,

Comments below.

ssaharan@cisco.com wrote:
> Okay let me ask my question again more clearly:
> I am trying to invoke EMF Validation from a standalone jar i.e. it is
> not being used from within eclipse or eclipse RCP.
So everything that's normally done via extension registrations in the
plugin.xmls will need to be done manually.
> I have a main method in one of my class from which I am invoking
> Validation using this code:
> // Invoke validation framework as usual
> IBatchValidator validator = (IBatchValidator)
> ModelValidationService.getInstance().newValidator(Evaluation Mode.BATCH);
> validator.setIncludeLiveConstraints(true);
> IStatus status = validator.validate(objs); // where objs is my
> EObjects to be validated
>
> If I do System.out.println(status), I get "Status OK:
> org.eclipse.emf.validation code=10 No constraints were evaluated.
> null" even though Validation error is there.
> While trying to investigate the issue, I found this post
> https://bugs.eclipse.org/bugs/show_bug.cgi?id=167972 where it is
> stated that EMF Validation 1.4.0 provides standalone support. My
> question is how to use modeledConstraintProviders extension point to
> get the constraints registered ? An example will be helpful as to what
> should be the ConstraintResourceURI in the extension point and the
> class it will define?
I don't know the answer and I'm not sure anyone who does pays attention
to the newsgroup anymore. Wouldn't it be much easier to run a headless
Eclipse instance so that your extensions just work?
>
> Thanks,
> Surekha
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