Question

I am looking for a good way to manage hibernate session across web application.
My problem is that i dont want to allow session access in the view or API layer.
so i built the following method in my abstract BaseDao class.
the method method

protected static Session getSession() {
    if(!session.isOpen()){
        session = sessionFactory.openSession();
    }else{
        session.clear();
    }
    return session;
}

usage:

public IHibernateBean save(IHibernateBean bean) {
    Transaction t = session.beginTransaction();
    getSession().saveOrUpdate(bean);
    t.commit();
    return bean;
}

public IHibernateBean getByPK(Class<?> class1 , Long pk) {
    IHibernateBean hibernateBean = (IHibernateBean) getSession().get( class1 , pk );
    return hibernateBean;
}

Answer 1

You can use the contextual session obtained via SessionFactory.getCurrentSession(), see 2.3. Contextual sessions.

Also see Generic Data Access Objects for example of typesafe DAO implementation.