Whenever I try to set a list as a parameter for use in an IN expression I get an Illegal argument exception. Various posts on the internet seem to indicate that this is possible, but it's certainly...

I add entity to my database and it works fine. But when i retrieve the List, i get the old entity, the new entities i add are not shown until i undeploy the application and redeploy it again. This ...

I'm using JPA toplink-essential and SQL Server 2008 My goal is to get auto-increment primary key value of the data that is going to be inserted into the table. I know in JDBC, there is getInserted...

I'm trying to do a cascading save on a large object graph using JPA. For example (my object graph is a little bigger but close enough): @Entity @Table(name="a") public class A { private long id; ...

We are using Toplink implementation of JPA + Spring + EJB. In one of our EJBs we have something like this: public void updateUser(long userId, String newName){ User u = em.get(User.class, userId)...