hibernateseamejbseam-conversationseam2

Help me to understand SEAM and Hibernate?

I want to use SEAM Framework with Hibernate but do not want to use EJB. I cannot use EJB.

First question is, can I use EntityManager? or is EntityManager a part of EJB?

How can I get access to use Hibernate in my SEAM component?

Thanks, Philip

Solution

  • With Seam, you can use either Hibernate or JPA (EntityManager). It works regardless of EJB. You can use plain POJO if you want.

    How can I get access to use Hibernate in my SEAM component ?

    Here goes Hibernate settings WEB-INF/components.xml

    SessionFactory settings

    <persistence:hibernate-session-factory name="sessionFactory" cfg-resource-name="app.cfg.xml"/>

    Where app.cfg.xml is placed in the root of the classpath

    Session settings

    <persistence:managed-hibernate-session name="session" hibernate-session-factory="#{sessionFactory}" auto-create="true"/>

    TransactionManagement settings

    <!--It takes care of calling begin and commit in the underlying Transaction API-->
<!--Here a Hibernate Transaction API-->
<tx:hibernate-transaction session="#{session}"/>

    To inject your Hibernate Session you can use

    /**
  * Seam lookup Seam enabled components Through its referenced name - session 
  */
private @In Session session;

    Keep in mind Seam works with any MVC framework although it uses Java Server Faces by default. You can create even your own MVC capabilities if you want. Take a look at JBoss Seam Tuto