NHibernateHelper帮助类

封装NHibernate的SessionFactory，生成Session。

using System;
using System.Collections.Generic;
using System.Text;
using NHibernate;
using NHibernate.Cfg;
using System.Windows.Forms;

namespace Kufolin.DBUtility
{
    public sealed class NHibernateHelper
    {
        private static readonly ISessionFactory sessionFactory;

        static NHibernateHelper()
        {
            try
            {
                sessionFactory = new Configuration().AddAssembly("TreeNHibernate").BuildSessionFactory();
            }
            catch (Exception e)
            {
                MessageBox.Show(e.Message);
                MessageBox.Show(e.StackTrace);
            }
        }
        public static ISession GetCurrentSession()
        {
            ISession currentSession = sessionFactory.OpenSession();
            return currentSession;
        }

        public static void CloseSessionFactory()
        {
            if (sessionFactory != null)
            {
                sessionFactory.Close();
            }
        }

    }
}