bookmarkhibernatedao.java

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package com.laoer.bbscs.dao.hibernate;

import org.springframework.orm.hibernate.support.HibernateDaoSupport;
import com.laoer.bbscs.dao.IBookMarkDAO;
import com.laoer.bbscs.bean.*;
import com.laoer.bbscs.sys.*;
import org.springframework.dao.*;
import java.util.*;
import net.sf.hibernate.*;
import net.sf.hibernate.type.*;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.springframework.orm.hibernate.HibernateCallback;
import java.sql.*;

/**
 * <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 BookMarkHibernateDAO
    extends HibernateDaoSupport implements IBookMarkDAO {

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

  public BookMarkHibernateDAO() {
    super();
  }

  /**
   *
   * @param bm BookMark
   * @return BookMark
   * @todo Implement this com.laoer.bbscs.dao.IBookMarkDAO method
   */
  public BookMark saveBookMark(BookMark bm) {
    try {
      this.getHibernateTemplate().saveOrUpdate(bm);
      return bm;
    }
    catch (DataAccessException ex) {
      logger.error("saveBookMark(BookMark bm):" + ex);
      return null;
    }
  }

  public BookMark getBookMark(long id, long userID) {
    String q = "from BookMark" + SysUtil.getTableID(userID, Constant.MODNUM10) +
        " bm where bm.id = ? and bm.userID = ?";
    Object[] o = {
        new Long(id), new Long(userID)};
    List l = this.getHibernateTemplate().find(q, o);
    if (l.size() == 0) {
      return null;
    }
    else {
      return (BookMark) l.get(0);
    }
  }

  /**
   *
   * @param mbName String
   * @return BookMark
   * @todo Implement this com.laoer.bbscs.dao.IBookMarkDAO method
   */
  public BookMark findBookMarkByBookMarkName(long userID, String bmName) {
    String q = "from BookMark" + SysUtil.getTableID(userID, Constant.MODNUM10) +
        " bm where bm.bookMarkName = ?";
    List l = this.getHibernateTemplate().find(q, bmName);
    if (l.size() == 0) {
      return null;
    }
    else {
      return (BookMark) l.get(0);
    }
  }

  /**
   *
   * @param userID long
   * @return int
   * @todo Implement this com.laoer.bbscs.dao.IBookMarkDAO method
   */
  public int getBookMarkNum(long userID) {
    String q = "select count(bm.id) from BookMark" + SysUtil.getTableID(userID, Constant.MODNUM10) +
        " bm where bm.userID = ?";
    try {
      List l = this.getHibernateTemplate().find(q, new Long(userID));
      return ( (Integer) l.get(0)).intValue();
    }
    catch (DataAccessException ex) {
      logger.error("getBookMarkNum(long userID):" + ex);
      return 0;
    }
  }

  /**
   *
   * @param userID long
   * @param pages Pages
   * @return PageList
   * @todo Implement this com.laoer.bbscs.dao.IBookMarkDAO method
   */
  public List getBookMarkList(final long userID, final int firstResult, final int maxResults) {
    return getHibernateTemplate().executeFind(new HibernateCallback() {
      public Object doInHibernate(Session s) throws HibernateException, SQLException {
        String q = "from BookMark" + SysUtil.getTableID(userID, Constant.MODNUM10) +
            " bm where bm.userID = ?";
        Query query = s.createQuery(q);
        query.setLong(0, userID);
        query.setFirstResult(firstResult);
        query.setMaxResults(maxResults);
        List list = query.list();
        return list;
      }
    });

  }

  /**
   *
   * @param id long
   * @param userID long
   * @todo Implement this com.laoer.bbscs.dao.IBookMarkDAO method
   */
  public void removeBookMark(final long id, final long userID) {

    getHibernateTemplate().execute(new HibernateCallback() {
      public Object doInHibernate(Session s) throws HibernateException, SQLException {
        String q = "from BookMark" + SysUtil.getTableID(userID, Constant.MODNUM10) +
            " bm where bm.id = ? and bm.userID = ?";
        Object[] o = {new Long(id), new Long(userID)};
        Type[] t = {Hibernate.LONG, Hibernate.LONG};
        s.delete(q, o, t);
        return null;
      }
    });

  }

}