Connect dinamically with JPA

Question

Im using Netbeans in a swing project.
I want to connect to database to manage persistence.
I want to use JPA (toplink)
I need to know how to specify dinamically the data base username and password, NOT in the presistence.xml (Persistence unit).
I think i shuld use something like this:
javax.persistence.EntityManager myEntityManager;
HashMap map = new HashMap ();
mapa.put("toplink.jdbc.user","myuser");
mapa.put("toplink.jdbc.password","mypassword");
myEntityManager = javax.persistence.EntityManagerFactory.createEntityManager(map);I get the following error:
Exception [TOPLINK-4002] (Oracle TopLink Essentials - 9.1 (Build b36-rc)): oracle.toplink.essentials.exceptions.DatabaseException
Internal Exception: java.sql.SQLException: Invalid Arguments in Call Code: 17433
....Any Idea?
Thanks

Answer 1

I have a very similar problem in the glassfish V2 toplink-essentials: (with Java SE non-EJB application in a jar)
Exception [TOPLINK-4002] (Oracle TopLink Essentials - 2.0 (Build b58g-fcs (09/07/2007))): oracle.toplink.essentials.exceptions.DatabaseException
Internal Exception: java.sql.SQLException: invalid arguments in call
Error Code: 17433
What the above suggests is that the JDBC URL is accepted instead of the Persistence Unit Name; is it possible that the Map key and value are switched
in the EntityManagerFactory class method createEntityManager(Map){...} ?