public int createGroup( String name, String members ){	
		int id = dao_id.getID( IDListDao.PARA_GROUP_ID );
		if( !handler_group.initialize() ){
			System.out.println( "GroupServer : failed to initialize group hander!" );
			return 0;
		}
		if( id == -1 || !handler_group.insertNewGroup( id, name ) ){
			handler_group.close();
			return 0;		
		}
		if( !handler_group.initGroupMember( id, members.split( "\\|" ) ) ){
			handler_group.close();
			return 0;
		}
		handler_group.close();
		dao_id.updateID( IDListDao.PARA_GROUP_ID );
		return id;
	}