CustomerFacade

package model;

import java.sql.Date;
import java.util.List;

import javax.persistence.EntityManager;
import javax.persistence.EntityManagerFactory;
import javax.persistence.EntityTransaction;
import javax.persistence.Persistence;
import javax.persistence.Query;
import javax.persistence.TypedQuery;


public class CustomerFacade {
    private EntityManager em;
    private EntityManagerFactory emf;


    public CustomerFacade(EntityManager em, EntityManagerFactory emf) {
        this.em=em;
        this.emf=emf;
    }
    private void openEntityManager(){
        this.emf = Persistence.createEntityManagerFactory("model-unit");
        this.em = emf.createEntityManager();

    }
    private void closeEntityManager(){
        this.em.close();
        this.emf.close();
    }

    public Customer insertNewCustomer(String firstName, String lastName, Date dateOfBirth, Address address, List<Order> orders,
            String email, String phoneNumber, Date registrationDate){

        this.openEntityManager();
        Customer customer = new Customer(firstName, lastName, dateOfBirth, address, orders, email, phoneNumber, registrationDate);
        customer.setOrders(orders);
        //Rendo persistente l'oggetto customer
        EntityTransaction t = this.em.getTransaction();
        t.begin();

        this.em.persist(customer);
        t.commit();
        this.closeEntityManager();
        return customer;
    }

    public List<Customer> viewAll(){
        this.openEntityManager();
        TypedQuery<Customer> q= this.em.createNamedQuery("findAllCustomers", Customer.class);
        return q.getResultList();
    }

    //Lista degli ordini di un cliente presente nel sistema
    @SuppressWarnings("unchecked")
    public List<Order> getOrders(Long id){
        this.openEntityManager();
        Query q = this.em.createNamedQuery("findAllOrders", Order.class);
        return q.getResultList();
    }

}