enum TRAFF_TYPE { TRAFF_UP = 0, TRAFF_DOWN, TRAFF_UP_DOWN, TRAFF_MAX };
enum TRAFF_TYPE { TRAFF_UP = 0, TRAFF_DOWN, TRAFF_UP_DOWN, TRAFF_MAX };
static CHANGE_POLICY StringToChangePolicy(const std::string& value);
static std::string PeriodToString(PERIOD period);
static CHANGE_POLICY StringToChangePolicy(const std::string& value);
static std::string PeriodToString(PERIOD period);
virtual double GetFee() const = 0;
virtual double GetFree() const = 0;
virtual PERIOD GetPeriod() const = 0;
virtual double GetFee() const = 0;
virtual double GetFree() const = 0;
virtual PERIOD GetPeriod() const = 0;