Using enumset in Guava's joiner

Question

I am working on converting an enumset into a string of values that are in the enumset. At the moment, I am using Joiner.on(',').join(enumset)) to create a string of values. However, I am wondering what are the ordering guarantees that enumset provides?

Thanks!!

Answer 1

Yes, there are guarantees. See the Javadoc for EnumSet.

The iterator returned by the iterator method traverses the elements in their natural order (the order in which the enum constants are declared). The returned iterator is weakly consistent: it will never throw ConcurrentModificationException and it may or may not show the effects of any modifications to the set that occur while the iteration is in progress.