Feature:
	Property | Operation | DateFeatureRef;
	
DateFeatureRef:
	'ref' op=[jvmTypes::JvmOperation];

class ScopeProvider extends XbaseScopeProvider {
	@Inject extension TypeReferences typeRefs

	override getScope(EObject context, EReference reference) {
		if (reference == DomainmodelPackage.eINSTANCE.dateFeatureRef_Op) {
			var dateJvmType = typeRefs.findDeclaredType(typeof(Date), context) as JvmDeclaredType
			var objectDescriptions = dateJvmType.allFeatures.filter(typeof(JvmOperation)).map[
				EObjectDescription::create(it.simpleName, it)]
			MapBasedScope::createScope(IScope::NULLSCOPE, objectDescriptions)
		} else
			super.getScope(context, reference)
	}
}

	entity A{
		ref getCalendarDate
	}

    @Override
    public IScope getScope(final EObject context, final EReference reference) {
        if (context instanceof MethodDefinition
            && reference.equals(BnoApiPackage.Literals.METHOD_DEFINITION__WARNING_TYPE)) {
            JvmType jvmType = typeReferences.findDeclaredType("my.WarningTypeEnum", context);
            if (jvmType instanceof JvmEnumerationType) {
                return Scopes.scopeFor(((JvmEnumerationType) jvmType).getLiterals(),
                    new Function< JvmEnumerationLiteral, QualifiedName >() {

                        @Override
                        public QualifiedName apply(final JvmEnumerationLiteral input) {
                            return QualifiedName.create(input.getSimpleName());
                        }
                    }, IScope.NULLSCOPE);
            }
        }
        ...
    }