How to get rid of an object within a scope from within a ses

[smokingapipe]

Here's the problem: Like so many other applications, I have a page that lets users sign up. Like all other Seam apps, I have a session bean that processes these signups. If everything is ok, it calls entityManager.persist(user).

That's great. Here's the problem: Let's say some silly user does that, and then goes back to that same page, and signs up again. Not a normal use of the system, but it will happen and it shouldn't throw an error. But it does throw an error, because it's using the same User object, which has already been persisted. So it tries to persist a detached object, which is an error.

What's the solution to this?

Thanks

[wondermike]

Do you use a conversation for the signup process? You could use a boolean var in the accompanying bean that says "confirm" and set it to false after you do the persist call. So the user has to script the checkbox or to click it a thousand times.
I also think that merge (http://www.hibernate.org/hib_docs/entitymanager/reference/en/html/objectstate.html#d0e897) is your friend.