Right. I'm saying that you only use the refresh as a one-time timer
rather than an ongoing thing.
You start at a page that is set to refresh.
The refresh triggers a normal JSF action.
The JSF servlet returns back an equivalent auto-refreshing page.
Repeat until the action returns back a different page.
On 2/9/07, Mikael Andersson <[EMAIL PROTECTED]> wrote:
The browser keeps waiting for the action method to finish (when submitting),
that is why I thought it might be possible to force a redirect/forward
programmatically so the action could do its length computation and the
progress page could be redisplayed (without starting a new thread).
- mike
On 08/02/07, Mike Kienenberger <[EMAIL PROTECTED]> wrote:
> If it were me, I'd look at having a meta-refresh tag submit a normal
action.
> The action would check the status of the background process, and
> either return the "in progress" page again or return the "action
> completed" page.
>
> You shouldn't need to anything strange like try to short-circult the
> JSF lifecycle or manually construct a response.
>
> On 2/8/07, Mikael Andersson < [EMAIL PROTECTED]> wrote:
> > Looking for some more suggestions :), I would prefer not to use ajax
since
> > it is quite a simple page.
> >
> > I have tried some more (hacky) stuff which didn't work either :( :
> >
> > The below changed the location URL, but don't load the page?? Any ideas.
> >
> > public static void programmaticForward2( final String viewId ) throws
> > IOException{
> > FacesContext faces = FacesContext.getCurrentInstance();
> > HttpServletResponse response = (HttpServletResponse)
> > faces.getExternalContext().getResponse();
> >
> > response.setContentType("text/html");
> > response.setHeader("Location", "http://localhost:8080/dss "
> > +viewId);
> >
> > faces.responseComplete();
> > response.getOutputStream().flush();
> > response.getOutputStream().close();
> >
> > }
> >
> > The below didn't do anything?
> >
> > public static void programmaticForward3( final String viewId ) throws
> > IOException{
> > FacesContext faces = FacesContext.getCurrentInstance();
> > HttpServletResponse response = (HttpServletResponse)
> > faces.getExternalContext().getResponse();
> > HttpServletRequest request =
> >
(HttpServletRequest)faces.getExternalContext().getRequest();
> >
> > PrintWriter out = response.getWriter();
> >
> > response.setContentType("text/html");
> > response.sendRedirect("http://"; +request.getServerName() +":"
> > +request.getServerPort() +"/dss" +viewId);
> >
> > faces.responseComplete();
> > out.flush();
> > out.close();
> >
> > }
> >
> > Cheers,
> > Mike no.2
> >
> >
> >
> > On 07/02/07, Mike Kienenberger <[EMAIL PROTECTED]> wrote:
> > > Here's an ajax solution for a progress bar:
> > >
> > >
> >
http://weblogs.java.net/blog/edburns/archive/2005/05/ajaxian_faces_p.html
> > >
> >
https://blueprints.dev.java.net/bpcatalog/ee5/ajax/usingAJAXwithoutJSF.html
> > >
> > > Seems like there should be a way to solve this without ajax, though.
> > > Maybe using a meta refresh.
> > >
> > >
> > > On 2/7/07, Mikael Andersson < [EMAIL PROTECTED]> wrote:
> > > > Hi,
> > > > I have an action which performs a length operation, I'd like to get
the
> > > > browser to redisplay the page while the process keeps running on the
> > server.
> > > >
> > > > I wonder how I perform a programmatic forward which in an action
method,
> > > > which causes the browser to re-render the page while the action
method
> > is
> > > > still running.
> > > >
> > > > Is there a way of doing this without spawning a new Thread?
> > > >
> > > > I made the following futile attempt :
> > > >
> > > > Managed bean:
> > > >
> > > > public String longishRunningAction(){
> > > >
> > > > try{
> > > > NavigationUtil.programmaticForward
> > > > ("/report/index.xhtml");
> > > > }
> > > > catch(Exception e){}
> > > >
> > > > doLongishRunningOperation();
> > > >
> > > > return null;
> > > > }
> > > >
> > > >
> > > > Some of the stuff in here were added just to see if the made a
> > difference,
> > > > they didn't :)
> > > >
> > > > public class NavigationUtil {
> > > >
> > > > /**
> > > > * Force a forward programmatically
> > > > *
> > > > * @param viewId the viewId to forward to, ex.
/report/index.xhtml
> > > > * @throws ServletException
> > > > * @throws IOException
> > > > */
> > > > public static void programmaticForward( final String viewId )
throws
> > > > ServletException, IOException{
> > > >
> > > > ExternalContext eCtx =
> > > > FacesContext.getCurrentInstance().getExternalContext();
> > > > HttpServletRequest request =
> > > > (HttpServletRequest)eCtx.getRequest();
> > > > HttpServletResponse response =
> > > > (HttpServletResponse)eCtx.getResponse();
> > > > RequestDispatcher dispatcher = request.getRequestDispatcher(
> > viewId
> > > > );
> > > >
> > > > dispatcher.forward(request,response);
> > > >
> > > > FacesContext.getCurrentInstance().responseComplete();
> > > >
> > > > response.getOutputStream().flush();
> > > > response.getOutputStream().close();
> > > >
> > > > }
> > > >
> > > > }
> > > >
> > > >
> > >
> >
> >
>
