Examples of javax.faces.application.NavigationHandler

javax.faces.application.NavigationHandler

A NavigationHandler is passed the outcome string returned by an application action invoked for this application, and will use this (along with related state information) to choose the view to be displayed next.

A default implementation of NavigationHandler must be provided by the JSF implementation, which will be utilized unless setNavigationHandler() is called to establish a different one. This default instance will compare the view identifier of the current view, the specified action binding, and the specified outcome against any navigation rules provided in faces-config.xml file(s). If a navigation case matches, the current view will be changed by a call to FacesContext.setViewRoot(). Note that a null outcome value will never match any navigation rule, so it can be used as an indicator that the current view should be redisplayed.

            context.responseComplete();
            return;
        }
        String loginViewId = loginView.value();
        log.debugf("Redirecting to configured LoginView %s", loginViewId);
        NavigationHandler navHandler = context.getApplication().getNavigationHandler();
        navHandler.handleNavigation(context, "", loginViewId);
        context.renderResponse();
    }

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            context.responseComplete();
            return;
        }
        String accessDeniedViewId = accessDeniedView.value();
        log.debugf("Redirecting to configured AccessDenied %s", accessDeniedViewId);
        NavigationHandler navHandler = context.getApplication().getNavigationHandler();
        navHandler.handleNavigation(context, "", accessDeniedViewId);
        context.renderResponse();
    }

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      HttpServletRequest request = ((HttpServletRequest) facesContext.getExternalContext().getRequest());
      String navigationCase = (String) request.getAttribute(NavigatingInvocationResultHandler.QUEUED_NAVIGATION);
      if (navigationCase != null)
      {
         request.setAttribute(NavigatingInvocationResultHandler.QUEUED_NAVIGATION, null);
         NavigationHandler navigationHandler = facesContext.getApplication().getNavigationHandler();
         log.debug("Passing queued " + PhaseAction.class.getName() + " result [" + navigationCase
                  + "] to NavigationHandler.handleNavigation()");
         navigationHandler.handleNavigation(facesContext, "", navigationCase);
      }
   }

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               {
                  mu.saveMessages(context, context.getExternalContext().getSessionMap());
                  String outcome = result.toString();
                  if (!"".equals(outcome))
                  {
                     NavigationHandler handler = context.getApplication().getNavigationHandler();
                     handler.handleNavigation(context, prettyContext.getCurrentViewId(), outcome);
                  }
                  return;
               }
            }
            catch (Exception e)

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                Object result = method.invoke(this);
                if (result != null)
                {
                    String outcome = result.toString();
                    // Retrieve the NavigationHandler instance..
                    NavigationHandler navHandler = context.getApplication().getNavigationHandler();
                    // Invoke nav handling..
                    navHandler.handleNavigation(context, action, outcome);
                    // Trigger a switch to Render Response if needed
                    context.renderResponse();
                    return;
                }
                restoreSessionMessage();

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        if (log.isDebugEnabled())
            log.debug("Redirecting from page {} to page {}.", getPageName(), outcome.toString());
        // Return to Parent
        FacesContext context = FacesContext.getCurrentInstance();
        // Retrieve the NavigationHandler instance..
        NavigationHandler navHandler = context.getApplication().getNavigationHandler();
        // Invoke nav handling..
        navHandler.handleNavigation(context, action, outcome.toString());
        // Trigger a switch to Render Response if needed
        context.renderResponse();
    }

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        href = ((href == null) ? STR_EMPTY : href.trim());
        
        // Get the correct URL for the outcome.
        
        NavigationHandler nh = facesContext.getApplication().getNavigationHandler();
        if (!(nh instanceof ConfigurableNavigationHandler))
        {
            throw new FacesException("navigation handler must be instance of ConfigurabeNavigationHandler for use h:link or h:button");
        }
        ConfigurableNavigationHandler navigationHandler = (ConfigurableNavigationHandler) nh;

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      }
      if (LOG.isDebugEnabled()) {
        LOG.debug("outcome = '" + outcome + "'");
      }
      Application application = facesContext.getApplication();
      NavigationHandler navigationHandler = application.getNavigationHandler();
      navigationHandler.handleNavigation(facesContext, null, outcome);


      if (facesContext.getViewRoot() == null) {
        ViewHandler viewHandler = application.getViewHandler();
        String viewId = getFromViewId();
        UIViewRoot view = viewHandler.createView(facesContext, viewId);

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                context.getExceptionHandler().getUnhandledExceptionQueuedEvents().iterator().hasNext();
    }


    private NavigationHandler getWrappedNavigationHandler()
    {
        NavigationHandler navigationHandler = new ViewConfigAwareNavigationHandler(this.wrapped);


        if (vasnhActivated)
        {
            navigationHandler = new ViewAccessScopedAwareNavigationHandler(navigationHandler);
        }

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        return wrapNavigationHandler(this.wrapped.getNavigationHandler());
    }


    private NavigationHandler wrapNavigationHandler(NavigationHandler handler)
    {
        NavigationHandler result = null;


        if (manualNavigationHandlerWrapperMode == null)
        {
            lazyInit();
        }

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