Projection DTO for Customer Details

CustomerDetailsDTO.java

public interface CustomerDetailsDTO {

    Integer getCustomerId();

    @Value("#{target.firstName + ' ' + target.lastName}")
    String getCustomerName();

    String getCity();

    String getCountry();

    @Value("#{@mapperUtility.buildOrderDTO(target.orderNumber, target.totalAmount)}")
    OrderDTO getOrder();
}