Hey guys,
I have entities that use lazy Set<T> as relationships and I would like to "read" a Set<T> instead of PersistentSet.
Is it possible? Because I'm sending the pojo through network and I would like to send null or an empty set instead of something that will throw an exception.
Thanks

Baskwo

It's not possible to use a HashSet when the collection is to be loaded lazily.

What you can do is to use DTOs instead. You can even get trees of DTOs right from the query.

Check out this article for more details.

Well not just HashSet but any "native type" of Set like LinkedHashSet or SortedSet, etc.

It's the same thing. You can only get that:

1. Via DTO projections
2. If you eagerly fetch the association, which is a bad idea.

Anyway, passing entities to the web layer sounds like a code smell. Entities are only useful if you plan on modifying them. Otherwise, a DTO projection is much more efficient way of fetching data.