package com.carService.demo.manager; import com.carService.demo.domain.Car; import com.carService.demo.domain.CarService; import java.util.List; import java.util.Optional; public interface CarServiceManager { CarService createService(CarService service); List getAllServices(); Optional getServiceById(Long serviceId); List getServicesByCar(Car car); List getServicesByCarId(Long carId); List getRecentServices(int limit); void deleteServiceById(Long serviceId); }