beginner~3h
Spring Data JPA — Repositories, Derived Queries & Auto-Configuration
This is where the raw JPA/Hibernate concepts from the first five chapters meet the everyday tool real Spring Boot applications actually use — repositories generate a working implementation from just an interface, with derived query methods parsing the method name itself into a real query.
Learning objectives
- Explain what JpaRepository gives you and how Spring generates its implementation at startup.
- Write a derived query method and explain how Spring parses its name into a JPQL query.
- Identify when a derived method name has grown too complex and should switch to @Query instead.
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Spring Data JPA — Repositories, Derived Queries & Auto-Configuration