     1	class StepperMotorClass : public DeviceClass
     2	{
     3	public:
     4		static StepperMotorClass *init(const char *);
     5		static StepperMotorClass *instance();
     6		~StepperMotorClass() {_instance = NULL;}
     7		
     8	protected:
     9		StepperMotorClass(string &);
    10		static StepperMotorClass *_instance;
    11		void command_factory();
    12		
    13	private:
    14		void device_factory(Tango_DevVarStringArray *);
    15	};
