Order Item and Order Repository

src/main/java/spring/boot/bookstore/repository/OrderItemRepository.java

@@ -0,0 +1,9 @@
+package spring.boot.bookstore.repository;
+
+import org.springframework.data.jpa.repository.JpaRepository;
+import org.springframework.stereotype.Repository;
+import spring.boot.bookstore.model.OrderItem;
+
+@Repository
+public interface OrderItemRepository extends JpaRepository<OrderItem, Long> {
+}

src/main/java/spring/boot/bookstore/repository/OrderRepository.java

@@ -0,0 +1,19 @@
+package spring.boot.bookstore.repository;
+
+import java.util.List;
+import java.util.Optional;
+import org.springframework.data.jpa.repository.EntityGraph;
+import org.springframework.data.jpa.repository.JpaRepository;
+import org.springframework.data.jpa.repository.Query;
+import org.springframework.stereotype.Repository;
+import spring.boot.bookstore.model.Order;
+
+@Repository
+public interface OrderRepository extends JpaRepository<Order, Long> {
+    @Query("SELECT  o FROM Order o LEFT JOIN FETCH o.orderItems"
+            + " LEFT JOIN FETCH o.user u WHERE u.id = :userId")
+    List<Order> findAllOrders(long userId);
+
+    @EntityGraph(attributePaths = "orderItems")
+    Optional<Order> findById(Long id);
+}