Examples of net.sf.wfnm.NavigationManager

net.sf.wfnm.NavigationManager
The Navigation Manager interface.
Concrete implementations of this interface contain the internal status of the framework such as:
- the stack of visited webflows
- the stack of visited pages for each webflow
- ownership defined for single objects
- a lock that allow to avoid multiple cuncurrent requests
- listeners for page changed and webflow changed
@author Maurizio Albari @version 1.0.6

     * @param currentIfNotExists indicates to reload the current page if it does not exists
     *
     * @return the url of the previous webflow (top page) with name 'webflowName'
     */
    public static String getPreviousWebflow(HttpSession session, String webflowName, final boolean currentIfNotExists) {
        NavigationManager navigationManager = getNavigationManager(session);


        String page = navigationManager.getPreviousWebflow(webflowName);


        if ((page == null) && currentIfNotExists) {
            page = getCurrentPage(session);
        }

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     * @param webflowName the webflow name
     *
     * @return true if the webflow has been visited
     */
    public static boolean isWebflowVisited(HttpSession session, String webflowName) {
        NavigationManager navigationManager = getNavigationManager(session);


        return navigationManager.isWebflowVisited(webflowName);
    }

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        if (!Config.getInstance().isEnabled()) {
            buffer1.append("<tr><td bordercolor='#C0C0C0' align='center'>\n");
            buffer1.append("Framework disabled\n");
        } else {
            AttributeContainer ac = (AttributeContainer) HttpSessionWrapper.wrapItIfNecessary(pageContext.getSession());
            NavigationManager manager = NavigationManagerFactory.getInstance(ac);


            Set sessionSet = new HashSet();


            for (Enumeration e = pageContext.getSession().getAttributeNames(); e.hasMoreElements();) {
                String key = (String) e.nextElement();
                sessionSet.add(key);
            }


            buffer1.append("<tr valign='bottom'><td bordercolor='#C0C0C0' align='center'>\n");
            buffer1.append("<table width='100%' cellSpacing='1' cellPadding='1' bgcolor='#C0C0C0'>\n");


            StringBuffer buffer2 = new StringBuffer();
            int count = 1;


            Stack webflowStack = manager.getWebflowStack();


            for (int i = webflowStack.size() - 1; i >= 0; i--) {
                count++;


                Webflow webflow = (Webflow) webflowStack.elementAt(i);

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