how to build the Example.Create() statement: 1:n Restrictions

           /* too slowly
            ResourceAssign raExample = new ResourceAssign();
            raExample.TargetEffortEstimation = EffortEstimationDao.GetById(effortEstimationId, false);
            raExample.TargetFiscalYear = FiscalYearDao.GetById(fiscalYearId, false);

            //IQuery query
            ICriteria query = NHibernateSessionManager.Instance.GetSession().CreateCriteria(typeof(ResourceAssign), "ra")
           //.Add(Example.Create(raExample))
           .SetProjection(Projections.ProjectionList().Add(Projections.Sum("Month10"))
           .Add(Projections.Sum("Month11"))
           .Add(Projections.Sum("Month12"))
           .Add(Projections.Sum("Month1"))
           .Add(Projections.Sum("Month2"))
           .Add(Projections.Sum("Month3"))
           .Add(Projections.Sum("Month4"))
           .Add(Projections.Sum("Month5"))
           .Add(Projections.Sum("Month6"))
           .Add(Projections.Sum("Month7"))
           .Add(Projections.Sum("Month8"))
           .Add(Projections.Sum("Month9")));//.SetResultTransformer(CriteriaUtil.AliasToEntityMap);

            object[] os = (object[])(query.UniqueResult() ?? new float[12]);
            float[] f = new float[12] { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 };
            for (int j = 0; j < 12; j++)
            {
                f[j] = (float)Convert.ToDouble(os[j] ?? 0);
            }

            return f;
            */

            StringBuilder sbSQL = new StringBuilder("SELECT ");
            sbSQL.Append("SUM(MANMONTH_10) AS s1, SUM(MANMONTH_11) AS s2, ");
            sbSQL.Append("SUM(MANMONTH_12) AS s3, SUM(MANMONTH_01) AS s4, ");
            sbSQL.Append("SUM(MANMONTH_02) AS s5, SUM(MANMONTH_03) AS s6, ");
            sbSQL.Append("SUM(MANMONTH_04) AS s7, SUM(MANMONTH_05) AS s8, ");
            sbSQL.Append("SUM(MANMONTH_06) AS s9, SUM(MANMONTH_07) AS s10, ");
            sbSQL.Append("SUM(MANMONTH_08) AS s11, SUM(MANMONTH_09) AS s12");

            sbSQL.Append(" FROM RESOURCE_ASSIGN");
            sbSQL.Append(" WHERE (RESOURCE_ASSIGN.FK_FISCAL_YEAR_ID =:fyid) AND (RESOURCE_ASSIGN.FK_EFFORT_ESTIMATION_ID =:eeid)");

            IQuery sqlQuery = NHibernateSessionManager.Instance.GetSession().CreateSQLQuery(sbSQL.ToString())
             .AddScalar("s1", NHibernateUtil.Single)
             .AddScalar("s2", NHibernateUtil.Single)
             .AddScalar("s3", NHibernateUtil.Single)
             .AddScalar("s4", NHibernateUtil.Single)
             .AddScalar("s5", NHibernateUtil.Single)
             .AddScalar("s6", NHibernateUtil.Single)
             .AddScalar("s7", NHibernateUtil.Single)
             .AddScalar("s8", NHibernateUtil.Single)
             .AddScalar("s9", NHibernateUtil.Single)
             .AddScalar("s10", NHibernateUtil.Single)
             .AddScalar("s11", NHibernateUtil.Single)
             .AddScalar("s12", NHibernateUtil.Single)
             .SetInt64("fyid", fiscalYearId)
             .SetInt64("eeid", effortEstimationId);

            object[] os = (object[])(sqlQuery.UniqueResult() ?? new float[12]);

            float[] f = new float[12] { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 };

            for (int j = 0; j < 12; j++)
            {
                f[j] = (float)Convert.ToDouble(os[j] ?? 0);
            }

            return f;