소개
This skill provides a comprehensive framework for building robust data access layers in Spring Boot applications. It enforces industry-standard patterns such as restricting repositories to aggregate roots, utilizing DTO projections for read-heavy operations, and implementing CQRS patterns for complex queries. By providing templates for custom repositories, performance optimization checklists, and advanced relationship mapping, it ensures developers avoid common pitfalls like N+1 query issues and LazyInitializationExceptions while maintaining clean, testable, and production-grade persistence code.
