NHibernate - 为什么Delete()调用无法删除但通过HQL删除有效？

Question

考虑到以下代码块,为什么调用HQL工作但调用delete()不起作用？作为背景,我使用NHibernate而不是IBM.Data.DB2.Iseries驱动程序.来发现,AS400上的日志已经关闭,所以我无法使用交易.我不是AS400管理员或者对它有任何了解所以我不知道是否关闭了日记功能(不打开事务)是否导致了这个问题.如果我正在调用Delete()或其他NHibernate函数,我是否绝对需要能够打开事务？

//This Does not work - no error and no deletes
public static void Delete(Object Entity)
    {
        using (ISession session = _sessionFactory.OpenSession())
        {
            //using(ITransaction tx = session.BeginTransaction())
            //{
                session.Delete(Entity);
                //tx.Commit();                    
                session.Close();                    
            //}
        }
    }

//This does work
public static void Delete(Object Entity)
    {
        using (ISession session = _sessionFactory.OpenSession())
        {
            //commented out transaction control because throws error because
            //journaling is not turned on the AS400
            //using(ITransaction tx = session.BeginTransaction())
            //{
                session.CreateQuery("delete MyDAO p where p.MyDAOID = :MyDAOID").SetString("MyDAOID", ((MyDAO)Entity).MyDAOID.ToString()).ExecuteUpdate();                
            //}
        }
    }

Answer 1

session.Flush()删除后尝试调用,但在关闭会话之前.而且您不需要显式关闭会话:

using (var session = ...)
{
    entity.Delete();
    session.Flush();
}