voteuserhibernatedao.java

天乙社区6.0是一套基于JAVA技术的网络虚拟社区

package com.laoer.bbscs.dao.hibernate;

import org.springframework.orm.hibernate.support.HibernateDaoSupport;
import com.laoer.bbscs.dao.IVoteUserDAO;
import com.laoer.bbscs.bean.VoteUser;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.springframework.dao.*;
import com.laoer.comm.util.*;
import java.util.*;
import net.sf.hibernate.*;
import org.springframework.orm.hibernate.HibernateCallback;
import java.sql.SQLException;

/**
 * <p>Title: TianYi BBS</p>
 * <p>Description: TianYi BBS System</p>
 * <p>Copyright: Copyright (c) 2004</p>
 * <p>Company: LAOER.COM/TIANYISOFT.NET</p>
 * @author laoer
 * @version 6.0
 */

public class VoteUserHibernateDAO
    extends HibernateDaoSupport implements IVoteUserDAO {

  private static final Log logger = LogFactory.getLog(VoteUserHibernateDAO.class);

  private static final String LOAD_VOTEID_UID =
      "from VoteUser vu where vu.voteID = ? and vu.voteUserID = ? and vu.voteTime > ?";
  private static final String DEL_OUTTIME =
      "from VoteUser vu where vu.voteTime < ?";

  public VoteUserHibernateDAO() {
    super();
  }

  /**
   * saveVoteUser
   *
   * @param vu VoteUser
   * @return VoteUser
   * @todo Implement this com.laoer.bbscs.dao.IVoteUserDAO method
   */
  public VoteUser saveVoteUser(VoteUser vu) {
    try {
      this.getHibernateTemplate().saveOrUpdate(vu);
      return vu;
    }
    catch (DataAccessException ex) {
      logger.error(ex);
      return null;
    }
  }

  /**
   * findVoteUser
   *
   * @param voteID long
   * @param userID long
   * @return VoteUser
   * @todo Implement this com.laoer.bbscs.dao.IVoteUserDAO method
   */
  public VoteUser findVoteUser(long voteID, long userID) {
    Object[] o = {
        new Long(voteID), new Long(userID),
        new Long(Util.getLongTime() - 24 * 3600000)};
    try {
      List l = this.getHibernateTemplate().find(LOAD_VOTEID_UID, o);
      if (l != null && !l.isEmpty()) {
        return (VoteUser) l.get(0);
      }
      else {
        return null;
      }
    }
    catch (DataAccessException ex) {
      logger.error(ex);
      return null;
    }
  }

  /**
   * delOutTime
   *
   * @todo Implement this com.laoer.bbscs.dao.IVoteUserDAO method
   */
  public void delOutTime() {
    getHibernateTemplate().execute(new HibernateCallback() {
      public Object doInHibernate(Session s) throws HibernateException, SQLException {
        s.delete(DEL_OUTTIME, new Long(Util.getLongTime() - 24 * 3600000), Hibernate.LONG);
        return null;
      }
    });
  }

}