service-class-conventions

Service Class Conventions Skill Service classes must be of type interface. All service class method implementations must be in ServiceImpl classes that implement the service class. All ServiceImpl classes must be annotated with @Service. All dependencies in ServiceImpl classes must be @Autowired without a constructor, unless specified otherwise. Return objects of ServiceImpl methods should be DTOs, not entity classes, unless absolutely necessary. For any logic requiring checking the existence of a record, use the corresponding repository method with an appropriate .orElseThrow lambda method. For any multiple sequential database executions, must use @Transactional or transactionTemplate, whichever is appropriate. Memory Protocol (MANDATORY) Before starting: cat .claude/context/memory/learnings.md After completing: Record any new patterns or exceptions discovered. ASSUME INTERRUPTION: Your context may reset. If it's not in memory, it didn't happen.