Lombok Patterns

This project uses Lombok to reduce Java boilerplate. Always prefer Lombok annotations over manual implementations.

Common Annotations

For Entities/Models

@Data                          // Getters, setters, equals, hashCode, toString
@Entity
public class Task {
    @Id @GeneratedValue
    private Long id;
    private String title;
}

For Immutable DTOs

@Value                         // Immutable: final fields, getters only
@Builder                       // Builder pattern
public class TaskResponse {
    Long id;
    String title;
}

For Services

@Service
@RequiredArgsConstructor       // Constructor for final fields (DI)
public class TaskService {
    private final TaskRepository taskRepository;
}

Annotation Reference

JPA Entity Pattern

@Data
@Entity
@NoArgsConstructor             // Required by JPA
@AllArgsConstructor
@Builder
public class Task {
    @Id
    @GeneratedValue(strategy = GenerationType.IDENTITY)
    private Long id;

    private String title;
    private String description;
    private boolean completed;
    private int priority;

    @Enumerated(EnumType.STRING)
    private TaskState state;
}

IDE Support

Lombok requires annotation processing enabled:

• IntelliJ: Enable annotation processing in settings
• VS Code: Lombok extension handles this automatically

If getters/setters show as errors but code compiles, restart IDE.