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[news.eclipse.modeling.mdt.ocl] Re: changing context of existing query 
Hi Chris

I doubt that you have fixed up even a quarter of the references.

Use EcoreUtil.CrossReferencer to find the references and then loop
over them to change them.

	Regards

		Ed Willink


Chris wrote: 
Hi everyone,

I have a very specific problem: I'd like to change the EClassifier context of an existing OCL query. In my project, there are several (meta)model repositories whose contents are replicated through EMF copy at certain times.
E.g. eClass1 is located in repository A and copied to repository B. Because this can happen multiple times, to avoid a severe performance hit I'd like to prepare the OCL queries for the elements in repository A only once and exchange their context with the copied elements in B each time a copy is created, so they can be executed for B.

I realized that the bindings are kept in the OCL environment, so I tried resetting them there (metaModelMap redirects to the eclass copies in B according to their name)

for (Iterator iter = OCL_ENV.getEnvironment().getTypeResolver()
        .getResource().getAllContents(); iter.hasNext();)
{
    Object object = iter.next();

    if (object instanceof Variable)
    {
        String eClassName = ((Variable)object).getEType().getName();
        EClass newEClass = metaModelMap.get(eClassName);
        ((Variable)object).setEType(newEClass);
    }
}

but this doesn't seem to do the trick. Maybe you've got some suggestions.

Thanks in advance,
Chris