This project is designed to explore and test different approaches for converting Entity objects into DTOs and vice versa. It demonstrates several methods for achieving this goal in a Spring Boot application.

The following methods for entity-to-DTO conversion are implemented:

• Constructor: Directly using constructors in DTO classes.
• Static Method: Utilizing static factory methods for conversion.
• @Builder (Lombok): Leveraging Lombok's @Builder annotation for building DTOs.
• Manual Mapper: Writing custom mapper classes for conversion.
• MapStruct: Using the MapStruct library for automatic mapping.
• Spring Data JPA Projection: Utilizing JPA projections to create DTOs directly from queries.

• Java Version: Java 23
• Frameworks: Spring Boot 3, JUnit 5
• API Documentation: Swagger UI

1. Clone the repository:

git clone https://github.com/angelicamarttins/entity-dto-converter
cd entity-dto-converter

2. Start the application:

./gradlew bootRun

3. Open your browser and navigate to:

http://localhost:8080/swagger-ui/index.html

4. Explore the endpoints:

• Select an endpoint;
• Click on Try it out;
• Modify the request payload if needed;
• Click Execute to see the response.

https://github.com/melix/jmh-gradle-plugin https://github.com/artyushov/idea-jmh-plugin https://github.com/openjdk/jmh