How to get an ordered set in OCL?

Question

When I have a result of type Set(Integer), numbers are not ordered. We have an operation usable on collections called sortedBy ( expr : OclExpression ) : Sequence(T), but when there's only integers in this set, what's the expression to use?

Answer 1

You can just use the asOrderedSet operation (if your collection is in the variable X, then that would be X->asOrderedSet())

From the OCL Standard asOrderedSet() : OrderedSet(T) An OrderedSet that contains all the elements from self, with duplicates removed, in an order dependent on the particular concrete collection type.