ordersbean.java

网络商店

package model;
import java.util.*;

public class OrdersBean {
  private static List<Order> list = null;
  
  public static List<Order> findAll() throws Exception {
    if ( list == null ) {
      list = Orders.findAll();
    }
    return list;
  }
  
  public static List<Order> getList() throws Exception {
    System.out.println("getList");
    if ( list == null ) 
      list = Orders.findAll();
    return list;
  }
  
  public static void createTable() throws Exception  {
    Orders.createTable();
    list = null;
  }
  
  public static void create(Order o) throws Exception  {
    Orders.create(o);
    list = null;
  }
  
    public static List<Order> findUser(String user) throws Exception {
        System.out.println("getList");

       return list = Orders.findUser(user);
       
    }
  
  public static Order find(int id) throws Exception {
    return Orders.find(id);
  }
  
    public static void delete(int id) throws Exception {
        Orders.delete(id);
        list = null;
    }
}