[jboss-user] [EJB 3.0] - Design question - how to create a thread safe operation in s

[avihaimar]

Hey,

I have the following problem.

I need to create a new EntityManagerFactory and rebind it to the JNDI:

EntityManagerFactory emf = new Ejb3Configuration().setProperty(
  | "hibernate.connection.datasource", "java:/DefaultDS").setProperty(
  | "hibernate.hbm2ddl.auto", "create").setProperty("hibernate.show_sql", "true")
  | .addAnnotatedClass(Hotel.class).addAnnotatedClass(Room.class)
  | .buildEntityManagerFactory();
  | new InitialContext().rebind("java:/sample3", emf);

I need that this code will be thread safe, because i dont want that 2 threads simultaneously will create the same EntityManagerFactory .

How can I do it in a stateless?

Thank you


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