context.getResponse( ).setHeader("Pragma","No-cache"); context.getResponse( ).setHeader("Cache-Control","no-cache"); context.getResponse( ).setHeader("Cache-Control","no-store"); context.getResponse( ).setDateHeader("Expires", 0);
	protected void __doGet( IContext context ) throws ServletException, IOException, BirtException	{		ViewerAttributeBean bean = ( ViewerAttributeBean ) context.getBean( );		if ( IBirtConstants.SERVLET_PATH_RUN.equalsIgnoreCase(				context.getRequest( ).getServletPath( ) )				&& bean != null				&& bean.isMissingParameter( ) )		{			requester.service( context.getRequest( ), context.getResponse( ) );		}		else if ( IBirtConstants.SERVLET_PATH_PARAMETER.equalsIgnoreCase(				context.getRequest( ).getServletPath( ) ) )		{			requester.service( context.getRequest( ), context.getResponse( ) );		}		else		{			engine.service( context.getRequest( ), context.getResponse( ) );		}	}