JPA dynamic persistence unit name

Question

I need a way to dynamically specify the persistence unit in a EJB.

Simplified example:

I have an application using multiple databases as data stores. Each of th

Answer 1

Just an idea, not sure if it'll help: You may open a inputStream to read the persistence.xml file and replace these lines:

Then splash a connection config screen where the user logs in, and set the connection according to the user privileges on that file, then start the main application

Not sure if that will help, it's just and idea. Depends on your application and business logic.