userinfodaoimpl.java

来自「Struts+Spring+Hibernate实现的在线拍卖系统,去掉了这些组件」· Java 代码 · 共 120 行

package org.bestteam.dao.impl;

import java.util.List;

import org.bestteam.dao.UserInfoDao;
import org.bestteam.domain.UserInfo;
import org.hibernate.LockMode;
import org.springframework.context.ApplicationContext;
import org.springframework.orm.hibernate3.support.HibernateDaoSupport;

public class UserInfoDaoImpl extends HibernateDaoSupport implements UserInfoDao {
	
	public static UserInfo getFromApplicationContext(ApplicationContext ctx) {
    	return (UserInfo) ctx.getBean("userInfoDao");
	}
	
	public boolean attachClean(UserInfo instance) {
		try{
			getHibernateTemplate().lock(instance, LockMode.NONE);
		}catch(RuntimeException re) {
			re.printStackTrace();
			return false;
		}
		return true;
	}
	
	
	public boolean attachDirty(UserInfo instance) {
		try{
			getHibernateTemplate().saveOrUpdate(instance);
		}catch(RuntimeException re) {
			re.printStackTrace();
			return false;
		}
		return true;
	}

	public boolean delete(UserInfo persistentInstance) {
		try{
			getHibernateTemplate().delete(persistentInstance);
		}catch(RuntimeException re) {
			re.printStackTrace();
			return false;
		}
		return true;
	}

	
	public UserInfo findUserInfoByUserID(Integer userID) {
		UserInfo user = null;
		try{
			user = (UserInfo) getHibernateTemplate().get("org.bestteam.domain.UserInfo", userID);
		}catch(RuntimeException re) {
			re.printStackTrace();
		}
		return user;
	}

	public List findUserInfoListByExample(UserInfo instance) {
		List userList = null;
		try{
			userList = getHibernateTemplate().findByExample(instance);
		}catch(RuntimeException re) {
			re.printStackTrace();
		}
		return userList;
	}

	
	public List findUserInfoListByProperty(String propertyName, Object value) {
		List userList = null;
		try{
			String queryString = "from UserInfo as userInfo where userInfo." 
												+ propertyName + "=?";
			userList = getHibernateTemplate().find(queryString, value);
			
			if (userList.size() == 0) {
				userList = null;
			}
			
		}catch(RuntimeException re) {
			re.printStackTrace();
		}
		return userList;
	}

	public List findAllUserInfo(){
		List userList = null;
		try{
			String queryString = "from UserInfo as userInfo";
			userList = getHibernateTemplate().find(queryString);
		}catch(RuntimeException re) {
			re.printStackTrace();
		}
		return userList;
	}
	
	public UserInfo merge(UserInfo detachedInstance) {
		UserInfo user = null;
		try{
			user = (UserInfo) getHibernateTemplate().merge(detachedInstance);
		}catch(RuntimeException re) {
			re.printStackTrace();
		}
		return user;
	}
	
	
	public boolean save(UserInfo transientInstance) {
		try{
			getHibernateTemplate().save(transientInstance);
		}catch(RuntimeException re) {
			re.printStackTrace();
			return false;
		}
		return true;
	}

}