NHibernate Base Context class

gistfile1.cs

 public class NHContext :IDisposable
    {

        #region init

        protected static ISessionFactory _sessionFactory;

        public ISessionFactory SessionFactory {
            get {
                if (_sessionFactory == null) Init();
                return _sessionFactory;
            }
        }

        public void Init()
        {
            if (_session != null) return;
            var configuration = new NHibernate.Cfg.Configuration();
            configuration.AddAssembly(this.GetType().Assembly);
            _sessionFactory = configuration.BuildSessionFactory();
        }

        #endregion

        protected ISession _session;

        #region session

        public ISession CurrenSession {
            get {
                if (_session == null) {
                    _session = SessionFactory.OpenSession();
                }
                return _session;
            }
        }

        #endregion


        public IQueryable<Company> Companies  {
            get { return CurrenSession.Query<Company>(); }
        }
        

        #region IDisposable

        public void Dispose()
        {
            if (_session != null) {
                _session.Clear();
                _session.Dispose();
                _session = null;
            }
        }
        #endregion

    }