Examples of PageProvider

org.apache.wicket.core.request.handler.PageProvider
Provides page instance for request handlers. Each of the constructors has just enough information to get existing or create new page instance. Requesting or creating page instance is deferred until {@link #getPageInstance()} is called.
Purpose of this class is to reduce complexity of both {@link IRequestMapper}s and {@link IRequestHandler}s. {@link IRequestMapper} examines the URL, gathers all relevantinformation about the page in the URL (combination of page id, page class, page parameters and render count), creates {@link PageProvider} object and creates a {@link IRequestHandler} instancethat can use the {@link PageProvider} to access the page.
Apart from simplifying {@link IRequestMapper}s and {@link IRequestHandler}s {@link PageProvider}also helps performance because creating or obtaining page from {@link IPageManager} is delayeduntil the {@link IRequestHandler} actually requires the page. @author Matej Knopp
org.apache.wicket.request.handler.PageProvider
Provides page instance for request handlers. Each of the constructors has just enough information to get existing or create new page instance. Requesting or creating page instance is deferred until {@link #getPageInstance()} is called.
Purpose of this class is to reduce complexity of both {@link IRequestMapper}s and {@link IRequestHandler}s. {@link IRequestMapper} examines the URL, gathers all relevantinformation about the page in the URL (combination of page id, page class, page parameters and render count), creates {@link PageProvider} object and creates a {@link IRequestHandler} instancethat can use the {@link PageProvider} to access the page.
Apart from simplifying {@link IRequestMapper}s and {@link IRequestHandler}s {@link PageProvider}also helps performance because creating or obtaining page from {@link IPageManager} is delayeduntil the {@link IRequestHandler} actually requires the page. @author Matej Knopp

Examples of org.apache.wicket.core.request.handler.PageProvider

                        return;
                    }
                }
                
                // shouldn't return null given that we're in a session ...
                PageProvider errorPageProvider = errorPageProviderFor(ex);
                throw new RestartResponseException(errorPageProvider, RedirectPolicy.ALWAYS_REDIRECT);
            }
        }
    }

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Examples of org.apache.wicket.core.request.handler.PageProvider

    }




    @Override
    public IRequestHandler onException(RequestCycle cycle, Exception ex) {
        PageProvider errorPageProvider = errorPageProviderFor(ex);
        // avoid infinite redirect loops
        RedirectPolicy redirectPolicy = ex instanceof PageExpiredException? RedirectPolicy.NEVER_REDIRECT: RedirectPolicy.ALWAYS_REDIRECT;
        return errorPageProvider != null 
                ? new RenderPageRequestHandler(errorPageProvider, redirectPolicy)
                : null;

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Examples of org.apache.wicket.core.request.handler.PageProvider

                : null;
    }


    protected PageProvider errorPageProviderFor(Exception ex) {
        IRequestablePage errorPage = errorPageFor(ex);
        return errorPage != null? new PageProvider(errorPage): null;
    }

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Examples of org.apache.wicket.core.request.handler.PageProvider

   * @return Bookmarkable URL to page
   */
  public final <C extends Page> Url mapUrlFor(final Class<C> pageClass,
    final PageParameters parameters)
  {
    IRequestHandler handler = new BookmarkablePageRequestHandler(new PageProvider(pageClass,
      parameters));
    return mapUrlFor(handler);
  }

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Examples of org.apache.wicket.core.request.handler.PageProvider

   * @return Bookmarkable URL to page
   */
  public final <C extends Page> CharSequence urlFor(final Class<C> pageClass,
    final PageParameters parameters)
  {
    IRequestHandler handler = new BookmarkablePageRequestHandler(new PageProvider(pageClass,
      parameters));
    return urlFor(handler);
  }

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Examples of org.apache.wicket.core.request.handler.PageProvider

  {
    if (page instanceof Page)
    {
      ((Page)page).setStatelessHint(false);
    }
    scheduleRequestHandlerAfterCurrent(new RenderPageRequestHandler(new PageProvider(page),
      RenderPageRequestHandler.RedirectPolicy.AUTO_REDIRECT));
  }

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Examples of org.apache.wicket.core.request.handler.PageProvider

   * 
   * @param pageClass
   */
  public void setResponsePage(Class<? extends IRequestablePage> pageClass)
  {
    IPageProvider provider = new PageProvider(pageClass, null);
    scheduleRequestHandlerAfterCurrent(new RenderPageRequestHandler(provider,
      RenderPageRequestHandler.RedirectPolicy.ALWAYS_REDIRECT));
  }

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Examples of org.apache.wicket.core.request.handler.PageProvider

   * @param parameters
   */
  public void setResponsePage(Class<? extends IRequestablePage> pageClass,
    PageParameters parameters)
  {
    IPageProvider provider = new PageProvider(pageClass, parameters);
    scheduleRequestHandlerAfterCurrent(new RenderPageRequestHandler(provider,
      RenderPageRequestHandler.RedirectPolicy.ALWAYS_REDIRECT));
  }

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Examples of org.apache.wicket.core.request.handler.PageProvider


    if (e instanceof StalePageException)
    {
      // If the page was stale, just rerender it
      // (the url should always be updated by an redirect in that case)
      return new RenderPageRequestHandler(new PageProvider(((StalePageException)e).getPage()));
    }
    else if (e instanceof PageExpiredException)
    {
      return createPageRequestHandler(new PageProvider(Application.get()
        .getApplicationSettings()
        .getPageExpiredErrorPage()));
    }
    else if (e instanceof AuthorizationException ||
      e instanceof ListenerInvocationNotAllowedException)
    {
      return createPageRequestHandler(new PageProvider(Application.get()
        .getApplicationSettings()
        .getAccessDeniedPage()));
    }
    else if (e instanceof ResponseIOException)
    {
      logger.error("Connection lost, give up responding.", e);
      return new EmptyRequestHandler();
    }
    else
    {


      final UnexpectedExceptionDisplay unexpectedExceptionDisplay = application.getExceptionSettings()
        .getUnexpectedExceptionDisplay();


      logger.error("Unexpected error occurred", e);


      if (IExceptionSettings.SHOW_EXCEPTION_PAGE.equals(unexpectedExceptionDisplay))
      {
        Page currentPage = extractCurrentPage();
        return createPageRequestHandler(new PageProvider(new ExceptionErrorPage(e,
          currentPage)));
      }
      else if (IExceptionSettings.SHOW_INTERNAL_ERROR_PAGE.equals(unexpectedExceptionDisplay))
      {
        return createPageRequestHandler(new PageProvider(
          application.getApplicationSettings().getInternalErrorPage()));
      }
      else
      {
        // IExceptionSettings.SHOW_NO_EXCEPTION_PAGE

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Examples of org.apache.wicket.core.request.handler.PageProvider

   *            bookmarkable page parameters
   */
  public <C extends Page> RestartResponseException(final Class<C> pageClass,
    final PageParameters params)
  {
    this(new PageProvider(pageClass, params), RedirectPolicy.ALWAYS_REDIRECT);
  }

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