plp::DataRange *get_hourly_summary(plp::Date *date);
plp::DataRange *get_hourly_summary(plp::Date *start_date, plp::Date *end_date);
plp::DataRange *get_data(plp::Date *start_date, plp::Date *end_date);
- plp::Data *find_newest_data(std::string year_name_param);
- plp::Data *find_oldest_data(std::string year_name_param);
protected:
std::string device_id;
std::string device_dir;