?? ordermgr.java
字號(hào):
package com.bjsxt.shopping.order;
import java.util.List;
import com.bjsxt.shopping.client.Cart;
import com.bjsxt.shopping.user.User;
public class OrderMgr {
private static OrderMgr mgr = null;
private static OrderDAO dao = new OrderMySQLDAO();
private OrderMgr() {}
public static OrderMgr getInstance() {
if(mgr == null) {
mgr = new OrderMgr();
}
return mgr;
}
public int add(SalesOrder so) {
return dao.add(so);
}
public int userBuy(Cart c, User u) {
return u.buy(c);
}
public int getOrders(List<SalesOrder> list, int pageNo, int pageSize){
return dao.getOrders(list, pageNo, pageSize);
}
public SalesOrder loadById(int id) {
return dao.loadById(id);
}
public List<SalesItem> getSalesItems(SalesOrder order) {
return dao.getSalesItems(order.getId());
}
public void updateStatus(SalesOrder order) {
dao.updateStatus(order);
//可以用dao.update來更新整個(gè)對(duì)象,這是一種更普遍的用法
}
}
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