Is there a reason you used a custom ViewHandler instead of a custom
StateManager?
It seems like that's the expected place to change state management
behavior, and it might be more portable across different ViewHandler
implementations.
On 9/19/05, Ihab Awad <[EMAIL PROTECTED]> wrote:
> Hi again, folks,
>
> On Sep 14, 2005, at 11:32, Ihab Awad wrote:
> > ... I tried overriding ViewHandler methods renderView and
> > restoreView to *not* call the state saving mechanism. The result is
> > that I can run my app without UIComponent methods processSaveState
> > or processRestoreState ever being called, which is what I want. ...
> > Hence my question: do you folks see any problems with this approach?
>
> Nobody replied yet, so I thought I'd add some more details of my
> code. Below are selected portions of my ViewHandler. This is based on
> the example from Hans Bergsten's JSF book. Again, any comments re
> this approach, especially regarding portability or possible problems
> with future JSF implementations, would be appreciated. Peace, -- Ihab
>
> public class CustomViewHandler extends ViewHandler {
>
> private static final String SMD_VIEW_ID = "/smdMainView";
>
> private final ViewHandler origViewHandler;
> private final Map<String, UIViewRoot> smdViews = new
> HashMap<String, UIViewRoot>();
>
> public CustomViewHandler(ViewHandler origViewHandler) {
> this.origViewHandler = origViewHandler;
> }
>
> public UIViewRoot createView(FacesContext context, String viewId) {
> if (isSMDView(viewId)) {
> UIViewRoot view = customCreateView(context, viewId);
> smdViews.put(viewId, view);
> return view;
> } else {
> return origViewHandler.createView(context, viewId);
> }
> }
>
> public void renderView(FacesContext context, UIViewRoot
> viewToRender)
> throws IOException
> {
> if (isSMDView(viewToRender)) {
> setupResponseWriter(context);
> /**** NOTE NO STATE SAVING ****/
> context.getResponseWriter().startDocument();
> renderResponse(context, viewToRender);
> context.getResponseWriter().endDocument();
> } else {
> origViewHandler.renderView(context, viewToRender);
> }
> }
>
> public UIViewRoot restoreView(FacesContext context, String
> viewId) {
> if (isSMDView(viewId)) {
> /**** NOTE NO STATE RESTORATION ****/
> return smdViews.get(viewId);
> } else {
> return origViewHandler.restoreView(context, viewId);
> }
> }
>
> private boolean isSMDView(String viewId) {
> return viewId.startsWith(SMD_VIEW_ID);
> }
>
> private boolean isSMDView(UIViewRoot view) {
> return isSMDView(view.getViewId());
> }
>
> private UIViewRoot customCreateView(FacesContext context, String
> viewId) {
>
> UIViewRoot result = new UIViewRoot();
>
> result.setViewId(viewId);
> result.setRenderKitId(calculateRenderKitId(context));
> result.setLocale(calculateLocale(context));
>
> /**** NOTE CREATING INSTANCE OF MY OWN CLASS ****/
> SMDRootViewPanel rootViewPanel = new SMDRootViewPanel();
> rootViewPanel.initialize();
> result.getChildren().add(rootViewPanel);
>
> return result;
> }
>
> }
>
>
>
