ordersdaoimpl.java

论坛软件系统亦称电子公告板(BBS)系统

package cn.jsprun.dao.impl;

import java.util.List;

import org.hibernate.HibernateException;
import org.hibernate.Query;
import org.hibernate.Session;
import org.hibernate.Transaction;

import cn.jsprun.dao.OrdersDao;
import cn.jsprun.domain.Orders;
import cn.jsprun.utils.HibernateUtil;

public class OrdersDaoImpl implements OrdersDao {
	public boolean deleteOrder(Orders order) {
		Session session = HibernateUtil.getSessionFactory().getCurrentSession();
		Transaction tr = null;
		try{
			tr = session.beginTransaction();
			session.delete(order);
			tr.commit();
			return true;
		}catch(HibernateException e){
			if (tr != null) {
				tr.rollback();
			}
			e.printStackTrace();
		}
		return false;
	}

	public int findOrdercountorsumByHql(String hql) {
		Session session = HibernateUtil.getSessionFactory().getCurrentSession();
		Transaction tr = null;
		try{
			tr = session.beginTransaction();
			Query query = session.createQuery(hql);
			List list = query.list();
			tr.commit();
			if(list!=null && list.size()>0){
				if(list.get(0)==null){
					return 0;
				}else{
					return (Integer)list.get(0);
				}
			}
		}catch(HibernateException e){
			if (tr != null) {
				tr.rollback();
			}
			e.printStackTrace();
		}
		return 0;
	}

	public Orders findOrdersById(String orderid) {
		Session session = HibernateUtil.getSessionFactory().getCurrentSession();
		Transaction tr = null;
		try{
			tr = session.beginTransaction();
			Query query = session.createQuery("from Orders as o where o.id.orderid=?");
			query.setParameter(0, orderid);
			List<Orders> list = query.list();
			tr.commit();
			if(list!=null && list.size()>0){
				return list.get(0);
			}
		}catch(HibernateException e){
			if (tr != null) {
				tr.rollback();
			}
			e.printStackTrace();
		}
		return null;
	}

	public List<Orders> findOrdersByhql(String hql) {
		Session session = HibernateUtil.getSessionFactory().getCurrentSession();
		Transaction tr = null;
		try{
			tr = session.beginTransaction();
			Query query = session.createQuery(hql);
			List<Orders> list = query.list();
			tr.commit();
			return list;
		}catch(HibernateException e){
			if (tr != null) {
				tr.rollback();
			}
			e.printStackTrace();
		}
		return null;
	}

	public boolean insertOrder(Orders order) {
		Session session = HibernateUtil.getSessionFactory().getCurrentSession();
		Transaction tr = null;
		try{
			tr = session.beginTransaction();
			session.save(order);
			tr.commit();
			return true;
		}catch(HibernateException e){
			if (tr != null) {
				tr.rollback();
			}
			e.printStackTrace();
		}
		return false;
	}

}