spring-boot-3

To enforce Spring Boot 3 patterns for clean architecture, use constructor injection to wire beans, load validated settings via typed @ConfigurationProperties records, and apply @Transactional to service layer methods.

The best way to configure typed properties in Spring Boot 3.3+ is using @ConfigurationProperties with typed records, which binds validated configuration data securely and reduces reflection overhead.

Use constructor injection in Spring Boot applications to improve testability and reduce reflection, ensuring dependencies are explicitly wired and immutable at runtime.

You need @Transactional on service layer methods to ensure consistent data operations, defining clear transactional boundaries that maintain data integrity across your Spring Boot 3 application.

Spring Boot 3 does not strictly require records for @ConfigurationProperties, but using typed records is the recommended best practice to enforce validated configuration data and clean architecture.