Clean Architecture

Used in 498 java projects (avg ★81)

Default

Used by 498 projects

Language / Topic

Java

Rules

Clean Architecture · balanced balanced

- Organize into modules: `domain` (entities, repository interfaces), `application` (use cases), `infrastructure` (Spring, JPA, APIs).

- Domain module has no Spring annotations, no JPA, no framework dependencies.

- Use cases return domain objects — mapping to DTOs happens in the controller/adapter layer, not in the business logic.

- Define repository interfaces in domain. Implement with Spring Data JPA in infrastructure.

- Use cases are `@Service` classes in the application layer. They orchestrate domain logic.

- Use DTOs for API request/response. Map to domain entities at the infrastructure boundary.

- Use constructor injection everywhere. Wire dependencies via Spring's DI container.