Spring Data Repository

※ Repository

 

1. CrudRepository

Crud 기능 제공

Create, Read, Update, Delete 

@NoRepositoryBean
public interface CrudRepository<T, ID> extends Repository<T, ID> {

	<S extends T> S save(S entity);

	<S extends T> Iterable<S> saveAll(Iterable<S> entities);

	Optional<T> findById(ID id);

	boolean existsById(ID id);

	Iterable<T> findAll();

	Iterable<T> findAllById(Iterable<ID> ids);

	long count();

	void deleteById(ID id);

	void delete(T entity);

	void deleteAllById(Iterable<? extends ID> ids);

	void deleteAll(Iterable<? extends T> entities);

	void deleteAll();
}

 

2. PagingAndSortingRepository

CrudRepository 상속 인터페이스

페이징 처리를 위한 메서드 제공

public interface PagingAndSortingRepository<T, ID extends Serializable>
      extends CrudRepository<T, ID> {

      Iterable<T> findAll(Sort sort);

      Page<T> findAll(Pageable pageable);
}

 

3. JpaRepository

ㄴㄴㄴ

@NoRepositoryBean
public interface JpaRepository<T, ID> extends ListCrudRepository<T, ID>, ListPagingAndSortingRepository<T, ID>, QueryByExampleExecutor<T> {

        void flush();

        <S extends T> S saveAndFlush(S entity);

        <S extends T> List<S> saveAllAndFlush(Iterable<S> entities);

        @Deprecated
        default void deleteInBatch(Iterable<T> entities) {
            deleteAllInBatch(entities);
        }

        void deleteAllInBatch(Iterable<T> entities);

        void deleteAllByIdInBatch(Iterable<ID> ids);

        void deleteAllInBatch();

        @Deprecated
        T getOne(ID id);

        @Deprecated
        T getById(ID id);

        T getReferenceById(ID id);

        @Override
        <S extends T> List<S> findAll(Example<S> example);

        @Override
        <S extends T> List<S> findAll(Example<S> example, Sort sort);
}