enum TRAFF_TYPE { TRAFF_UP = 0, TRAFF_DOWN, TRAFF_UP_DOWN, TRAFF_MAX };
+ static std::string ChangePolicyToString(CHANGE_POLICY change_policy);
+ static CHANGE_POLICY StringToChangePolicy(const std::string& value);
+
static std::string PeriodToString(PERIOD period);
static PERIOD StringToPeriod(const std::string& value);
virtual double GetFee() const = 0;
virtual double GetFree() const = 0;
virtual PERIOD GetPeriod() const = 0;
+ virtual CHANGE_POLICY GetChangePolicy() const = 0;
virtual const std::string & GetName() const = 0;
virtual void SetName(const std::string & name) = 0;