Get Ticket Dto Mapper

In this lesson we'll implement the DTOs and mappers that we need for the list tickets endpoint.

Creating the List Ticket Response DTOs

We'll start by creating two Data Transfer Objects (DTOs) to represent ticket information when listing tickets.

The first DTO, ListTicketResponseDto, will contain the main ticket information:

@Data
@AllArgsConstructor
@NoArgsConstructor
public class ListTicketResponseDto {
  private UUID id;
  private TicketStatusEnum status;
  private ListTicketTicketTypeResponseDto ticketType;
}

The second DTO, ListTicketTicketTypeResponseDto, will contain information about the ticket type:

@Data
@AllArgsConstructor
@NoArgsConstructor
public class ListTicketTicketTypeResponseDto {
  private UUID id;
  private String name;
  private Double price;
}

Implementing the Ticket Mapper

Now we'll create a mapper to convert between our entities and DTOs.

The TicketMapper interface uses MapStruct to handle the conversion:

@Mapper(componentModel = "spring", unmappedTargetPolicy = ReportingPolicy.IGNORE)
public interface TicketMapper {

  ListTicketTicketTypeResponseDto toListTicketTicketTypeResponseDto(TicketType ticketType);

  ListTicketResponseDto toListTicketResponseDto(Ticket ticket);

}

The mapper includes two methods:

toListTicketTicketTypeResponseDto converts a TicketType entity to its DTO representation
toListTicketResponseDto converts a Ticket entity to its DTO representation

Summary

Created ListTicketResponseDto and ListTicketTicketTypeResponseDto classes
Created TicketMapper with mapper methods