Refatorando para incluir o Spring Data

Author: Gleyser

reservalabs/src/main/java/br/com/webproject/reservalabs/reservalabs/Controller/ReservaController.java

@@ -19,7 +19,7 @@ public class ReservaController {
 	@GetMapping("/reservas")
 	public String home(Model model) {
 
-		List<Reserva> reservas = this.reservaRepository.retornaReservas();
+		List<Reserva> reservas = this.reservaRepository.findAll();
 		model.addAttribute("reservas", reservas);
 		return "reservas";
 	}

reservalabs/src/main/java/br/com/webproject/reservalabs/reservalabs/Repository/ReservaRepository.java

@@ -2,24 +2,14 @@
 
 import java.util.List;
 
-import javax.persistence.EntityManager;
-import javax.persistence.PersistenceContext;
-import javax.persistence.Query;
-
+import org.springframework.data.jpa.repository.JpaRepository;
 import org.springframework.stereotype.Repository;
 
 import br.com.webproject.reservalabs.reservalabs.Model.Reserva;
 
 @Repository
-public class ReservaRepository {
+public interface ReservaRepository extends JpaRepository<Reserva, Long> {
 
-	@PersistenceContext
-	private EntityManager entityManager;
 
-	public List<Reserva> retornaReservas(){
-		Query query = entityManager.createQuery("select r from Reserva r", Reserva.class);
-		List<Reserva> reservas = query.getResultList();
-		return reservas;
-	}
 
 }