salesdao.java

这是本人以前在学校时

package com.funddeal.model.dao.sales;

import java.util.Collection;
import java.util.List;

import net.sf.hibernate.HibernateException;
import net.sf.hibernate.Query;
import net.sf.hibernate.Session;

import com.funddeal.base.SessionCommit; 
import com.funddeal.model.pojo.sales.Sales;

public class SalesDAO extends SessionCommit {

	public SalesDAO() throws HibernateException {
		super();
	}
	/**
	 * 
	 * @param str
	 * @return
	 * @throws HibernateException
	 */
	public Collection selectSales(String str) throws HibernateException{
		Session session=this.getSession();
		Query query=session.createQuery(str);
		List list=query.list();
		if(list.size()>0)
			return list;
		else
			return null;
	}
	
	
	/**
	 * 
	 * @param str
	 * @return
	 * @throws HibernateException
	 */
	public Sales select(String str) throws HibernateException{
		Session session=this.getSession();
		Query query=session.createQuery(str);
		List list=query.list();
		Sales sales=new Sales();
		if(list.size()>0){
			sales=(Sales) list.get(0);
		return sales;
		}
		else
			return null;
	}

	
	/**
	 * 删除记录
	 * @param cbn
	 * @return
	 */
	public boolean delSales(Sales sales){
		errorMsg="";
		SessionCommit sc;
		boolean bl=false;
		try {
			sc = new SessionCommit();
			bl=sc.getSessionDelete(sales);
		} catch (HibernateException e){
			errorMsg=e.getMessage();
			return false;
		}
		if(!bl)
			if(!SessionCommit.errorMsg.equals(""))
				errorMsg=SessionCommit.errorMsg;
		return bl;
	}
}