package com.laoer.bbscs.dao.hibernate;

import org.springframework.orm.hibernate.support.HibernateDaoSupport;
import com.laoer.bbscs.dao.IAdvDAO;
import com.laoer.bbscs.bean.Adv;
import java.util.*;
import org.springframework.dao.*;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;

/**
 * <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 AdvHibernateDAO
    extends HibernateDaoSupport
    implements IAdvDAO {

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

  private static final String LOAD_ALL =
      "from Adv adv order by adv.id desc";
  private static final String LOAD_BY_TYPE =
      "from Adv adv where adv.type = ? order by adv.id desc";

  public AdvHibernateDAO() {
    super();
  }

  /**
   *
   * @param adv Adv
   * @return Adv
   * @todo Implement this com.laoer.bbscs.dao.IAdvDAO method
   */
  public Adv saveAdv(Adv adv) {
    try {
      this.getHibernateTemplate().saveOrUpdate(adv);
      return adv;
    }
    catch (DataAccessException ex) {
      logger.error(ex);
      return null;
    }
  }

  /**
   *
   * @param id long
   * @return Adv
   * @todo Implement this com.laoer.bbscs.dao.IAdvDAO method
   */
  public Adv getAdv(long id) {
    return (Adv)this.getHibernateTemplate().get(Adv.class, new Long(id));
  }

  public List findAdvAll() {
    try {
      return this.getHibernateTemplate().find(LOAD_ALL);
    }
    catch (DataAccessException ex) {
      logger.error(ex);
      return new ArrayList();
    }
  }

  /**
   *
   * @param type short
   * @return List
   * @todo Implement this com.laoer.bbscs.dao.IAdvDAO method
   */
  public List findAdvByType(short type) {
    try {
      return this.getHibernateTemplate().find(LOAD_BY_TYPE, new Short(type));
    }
    catch (DataAccessException ex) {
      logger.error(ex);
      return new ArrayList();
    }
  }

  /**
   *
   * @param adv Adv
   * @todo Implement this com.laoer.bbscs.dao.IAdvDAO method
   */
  public void removeAdv(Adv adv) {
    this.getHibernateTemplate().delete(adv);
  }

}