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

[christian.saad@xxxxxxxxxxxxxxxxxxxxxxxxxx (C. Saad)]

Hi Ed,

thanks for your quick help. I tried using the UsageCrossReferences and it 
seems that it's working:

// search for features of old classes
Set<EStructuralFeature> feats = new HashSet<EStructuralFeature>();
for (EClass oldEClass : oldEClasses)
{
	feats.addAll(oldEClass.getEAllStructuralFeatures());
}

// find referring features
Map<EObject, Collection<EStructuralFeature.Setting>> usesOfOldEClasses = 
EcoreUtil.UsageCrossReferencer
		.findAll(feats, OCL_ENV.getEnvironment().getTypeResolver()
				.getResource());

// switch old features with new ones
for (Entry<EObject, Collection<EStructuralFeature.Setting>> entry : 
usesOfOldEClasses
		.entrySet())
{
	EStructuralFeature oldFeature = (EStructuralFeature) entry.getKey();
	EClass oldClass = (EClass) oldFeature.eContainer();
	EClass newClass = metaModelMap.get(oldClass.getName());
	EStructuralFeature newFeature = newClass
			.getEStructuralFeature(oldFeature.getName());

	for (EStructuralFeature.Setting setting : entry.getValue())
	{
		setting.set(newFeature);
	}
}

Regards,
Chris