Hibernate Session.save() doesn't return a value?

Question

Below code throws a casting error

Long newID = (Long)session.save(object);

I am new to hibernate. Don't know why.

Answer 1

The return value of session.save() depends on your mapping. Most likely you have a type of ID that isn't a Long. Try doing this:

System.out.println(session.save(object).getClass().getName());

Then you'll see the type name.