Java tutorial
/* * To change this license header, choose License Headers in Project Properties. * To change this template file, choose Tools | Templates * and open the template in the editor. */ package Dao; import java.util.List; import org.hibernate.Session; import org.hibernate.SessionFactory; import org.slf4j.Logger; import org.slf4j.LoggerFactory; import org.springframework.stereotype.Repository; import Model.Order; import org.hibernate.criterion.Restrictions; /** * * @author charles */ @Repository public class OrderDAO { private static final Logger logger = LoggerFactory.getLogger(OrderDAO.class); private SessionFactory sessionFactory; public void setSessionFactory(SessionFactory sf) { this.sessionFactory = sf; } public void addOrder(Order u) { Session session = this.sessionFactory.getCurrentSession(); session.persist(u); logger.info("Order saved successfully, Order Details=" + u); } public void updateOrder(Order u) { Session session = this.sessionFactory.getCurrentSession(); session.update(u); logger.info("Order updated successfully, Order Details=" + u); } @SuppressWarnings("unchecked") public List<Order> listOrders() { Session session = this.sessionFactory.getCurrentSession(); List<Order> ordersList = session.createQuery("from Order").list(); for (Order u : ordersList) { logger.info("Order List::" + u); } return ordersList; } public Order getOrderById(int id) { Session session = this.sessionFactory.getCurrentSession(); Order u = (Order) session.load(Order.class, new Integer(id)); logger.info("Order loaded successfully, Order details=" + u); return u; } public Order getOrderByEmail(String email) { Session session = this.sessionFactory.getCurrentSession(); List orders = session.createCriteria(Order.class).add(Restrictions.eq("email", email)).list(); if (orders.isEmpty()) { return null; } Order u = (Order) orders.get(0); logger.info("Order loaded successfully, Order details=" + u); return u; } public void removeOrder(int id) { Session session = this.sessionFactory.getCurrentSession(); Order u = (Order) session.load(Order.class, new Integer(id)); if (null != u) { session.delete(u); } logger.info("Order deleted successfully, person details=" + u); } }