warp persist, guice & wicket: use warp persist during wicket application startup to load db objects

[Christoph Grün]

Hi all,

 I am using Wicket together with Guice and Warp Persist/Servlet.

I have registered the PersistenceService in the contextInitialized method.
However, I would like to do some data loading from the database when wicket
starts, and like to access Hibernate Daos. I am getting the error: 

 org.hibernate.HibernateException: No session currently bound to execution
context

                at
org.hibernate.context.ManagedSessionContext.currentSession(ManagedSessionCon
text.java:50)

                at
org.hibernate.impl.SessionFactoryImpl.getCurrentSession(SessionFactoryImpl.j
ava:591)

                at
com.wideplay.warp.hibernate.SessionProvider.get(SessionProvider.java:42)

                at
com.wideplay.warp.hibernate.SessionProvider.get(SessionProvider.java:32)

 Using Hibernate from an HTTP request is no problem. How can I configure
Warp to use it directly from WicketApplication, so that I can load the
database objects and use them for incoming HTTP requests?

Thanks a lot, Christoph

 public class Init extends WarpServletContextListener {

 

    @Override

    public void contextInitialized(ServletContextEvent event) {

        super.contextInitialized(event);

        INJ.getInstance(PersistenceService.class).start();

        event.getServletContext().setAttribute("injector", INJ);

    }

 

    @Override

    public void contextDestroyed(ServletContextEvent event) {

        super.contextDestroyed(event);

    }