public static Set<EPackage> getPackagesForModel(final Properties dataSourceProperties) throws OdaException {
		final Collection<EObject> model = Connection.getModel(dataSourceProperties);
		if (model.isEmpty()) {
			return null;
		}
	
		EObjectCondition condition = new EObjectTypeRelationCondition(EcorePackage.eINSTANCE.getEObject(),
				TypeRelation.SAMETYPE_OR_SUBTYPE_LITERAL);
		IQueryResult classes = new SELECT(
				new FROM(model.iterator().next()),
				new WHERE(condition)).execute();
		Set<EObject> objects = (Set<EObject>)classes.getEObjects();
		Set<EPackage> ePackages = new HashSet<EPackage>();
		for (EObject eObject : objects) {
			ePackages.add(eObject.eClass().getEPackage());
		}
		return ePackages;
	}

...
EObjectCondition condition  = EObjectTypeRelationCondition.UNDEFINED;
...