private HandoverService() { _daoManager = ServiceConfig.GetInstance().DaoManager; _dailyStatementDao = _daoManager.GetDao(typeof(IDailyStatementDao)) as IDailyStatementDao; _handoverRecord = _daoManager.GetDao(typeof(IHandoverRecordDao)) as IHandoverRecordDao; _handoverTurnover = _daoManager.GetDao(typeof(IHandoverTurnoverDao)) as IHandoverTurnoverDao; }