Detach an entity from JPA/EJB3 persistence context

Question

What would be the easiest way to detach a specific JPA Entity Bean that was acquired through an EntityManager. Alternatively, could I have a query return detached objects in

Answer 1

If using EclipseLink you also have the options,

Use the Query hint, eclipselink.maintain-cache"="false - all returned objects will be detached.

Use the EclipseLink JpaEntityManager copy() API to copy the object to the desired depth.