Spring Data Spring Data Packt .pdf Checked May 2026

// In repo: List<UserSummary> findByLastName(String last); @DataJpaTest @AutoConfigureTestDatabase(replace = Replace.NONE) // use real DB if needed class UserRepoTest @Autowired private TestEntityManager entityManager; @Autowired private UserRepo repo; @Test void shouldFindByEmail() User user = new User("test@example.com"); entityManager.persist(user); Optional<User> found = repo.findByEmail("test@example.com"); assertThat(found).isPresent();

Repository (marker) ├── CrudRepository<T, ID> ├── PagingAndSortingRepository<T, ID> └── JpaRepository<T, ID> (JPA-specific) 3.3 Query Derivation — The Magic Method name → JPQL query automatically. spring data spring data packt .pdf checked

I notice you're asking for a "deep guide" related to a specific PDF: Spring Data (Packt) — but you've also added "spring data packt .pdf checked." // In repo: List&lt

@Query(" 'location' : $near : $geometry : type: 'Point', coordinates: ?0 , $maxDistance: ?1 ") List<Store> findNearby(double[] point, double maxDistance); 7. Spring Data REST – Instant Hypermedia API Add one dependency ( spring-boot-starter-data-rest ) → your repositories become REST endpoints. @Autowired private UserRepo repo