小编Sub*_*der的帖子

// Driver model
@Data
@AllArgsConstructor
@NoArgsConstructor
public class Driver {
    private String driverName;
    private String licenseNumber;
}

// Car model
@Data
@AllArgsConstructor
@NoArgsConstructor
public class Car {
    private String make;
    private List<Driver> drivers;
    private CarType type;
}

// Car DTO
@Data
@AllArgsConstructor
@NoArgsConstructor
public class CarDto {
    private String make;
    private Integer totalDrivers;
    private String type;
}

@Mapper
public interface CarMapper {
    @Mapping(target = "totalDrivers", expression = "java(mapDrivers(car.getDrivers()))")
    CarDto mapCarDto(Car car);

    default Integer mapDrivers(List<Driver> totalDrivers) {
        return totalDrivers.size();
    }

    @InheritInverseConfiguration …