userinfohibernatedao.java

来自「用JAVA完成的BLOG采用STRUTS.HIBERNATE.SPRING.框架」· Java 代码 · 共 85 行

package com.laoer.blog.dao.hibernate;

import java.util.*;
import org.springframework.orm.hibernate3.support.*;
import com.laoer.blog.dao.UserInfoDAO;
import com.laoer.blog.bean.UserInfo;

/**
 * <p>Title: 天乙博客</p>
 *
 * <p>Description: 天乙博客系统</p>
 *
 * <p>Copyright: Copyright (c) 2005</p>
 *
 * <p>Company: Laoer.com</p>
 *
 * @author laoer[Gong Tianyi]
 * @version 1.0
 */
public class UserInfoHibernateDAO
    extends HibernateDaoSupport implements UserInfoDAO {

  private static final String LOAD_USERNAME = "from UserInfo where username = ?";

  private static final String LOAD_EMAIL = "from UserInfo where email = ?";

  public UserInfoHibernateDAO() {
    super();
  }

  /**
   *
   * @param ui UserInfo
   * @return UserInfo
   * @todo Implement this com.laoer.blog.dao.UserInfoDAO method
   */
  public UserInfo saveUserInfo(UserInfo ui) {
    this.getHibernateTemplate().saveOrUpdate(ui);
    return ui;
  }

  /**
   *
   * @param id long
   * @return UserInfo
   * @todo Implement this com.laoer.blog.dao.UserInfoDAO method
   */
  public UserInfo findUserInfoByID(long id) {
    return (UserInfo)this.getHibernateTemplate().get(UserInfo.class,
        new Long(id));
  }

  /**
   *
   * @param userName String
   * @return UserInfo
   * @todo Implement this com.laoer.blog.dao.UserInfoDAO method
   */
  public UserInfo findUserInfoByUserName(String userName) {
    List l = this.getHibernateTemplate().find(LOAD_USERNAME, userName);
    if (l == null || l.isEmpty()) {
      return null;
    }
    else {
      return (UserInfo) l.get(0);
    }
  }

  /**
   *
   * @param email String
   * @return UserInfo
   * @todo Implement this com.laoer.blog.dao.UserInfoDAO method
   */
  public UserInfo findUserInfoByEmail(String email) {
    List l = this.getHibernateTemplate().find(LOAD_EMAIL, email);
    if (l == null || l.isEmpty()) {
      return null;
    }
    else {
      return (UserInfo) l.get(0);
    }
  }
}