java List排序

/*******************************************************************************

 * $Header$

 * $Revision$

 * $Date$

 *

 *==============================================================================

 *

 * Copyright (c) 2001-2006 Primeton Technologies, Ltd.

 * All rights reserved.

 *

 * Created on 2012-3-5

 *******************************************************************************/

 

 

package dip.integrateportal.logisticsManagement.meetingManagement;

import java.util.Comparator;

 

import commonj.sdo.DataObject;

 

/**

 * 会议室排序（通过实现Comparator接口的compare方法来制定排序规则）

 * */

public class ComparatorUtil implements Comparator{

 

         public int compare(Object obj1,Object obj2){

                   DataObject room1 = (DataObject)obj1;

                   DataObject room2 = (DataObject)obj2;

                   int flag = room1.getString("meetingroomid").compareTo(room2.getString("meetingroomid"));

                   if(flag==0){

                            return room1.getString("meetingname").compareTo(room2.getString("meetingname"));

                   }else{

                            return flag;

                   }

         }

}

 

//下面是对List排序代码片段

        ComparatorUtil comparator = new ComparatorUtil();

        Collections.sort(list,comparator);