0 Replies Latest reply on May 17, 2004 5:43 PM by new2jbossapp

    Hello World example

    new2jbossapp Newbie

      Hi howard !

      I am glad you commented and I am ok to provide you feedbacks.

      First point :

      when a page is redirected, the vaidate method is never called a second time. I think such a behaviour would be usefull. It comes from the service method of AbstractEngine :

      service()
      {
      ...
      try { service.service(this, cycle, output);
      }
      ...
      catch(RedirectException e)
      {
      redirect(ex.getTargetPageName(), cycle, output, ex);
      }
      ...
      }

      redirect(...)
      {
      ...
      IPage page = cycle.getPage(pageName);
      cycle.setPage(page);
      renderResponse(cycle, out);
      ...
      }

      and in DirectService :

      service(...)
      {
      ...
      IPage page = cycle.getPage(pageName);
      ...
      page.validate(cycle);
      ...
      engine.renderResponse(cycle, output);
      ...
      }

      you see that validate is not called when I redirect
      to a page. Therefore I added a validateBusiness method
      that is called every time a page is going to be
      validated, because I feel it like that. What' your
      POV ?

      Second point :

      I did a form componenet with many properties that go in a map.

      AFAIK the tapestry way,

      <component-specification>
      ...



      ...
      </component-specification>

      in the class :

      public void getAddress()
      {
      return map.get("address");
      }

      public void setAddress(String address)
      {
      map.put("address", address);
      }

      what I did is simply to intercept call to the
      class by binding some code thanks to ognl with smth
      like :

      public Object getProperty(
      Map context,
      Object target,
      Object name)
      throws OgnlException
      {
      return map.get(name);
      }

      that mean I can save some *stupid* code.

      Some feedback in general :

      I wish tapestry would have more generic
      way to generate page components. For instance a
      component could be generated programmatically on the fly when a page is rendered according to some metadata.

      Second I *really* wish tapestry would integrate
      JAAS for security. So far I am using it in forum
      code.

      That would be usefull for everyone using tapestry + jboss.
      To my taste, validate() is a little bit light for security
      purposes. But that could be jboss specific and you
      don't want that. Anyway there might be smth to do :
      JAAS + jboss JAAS specific pluggin.

      I would like also to EJB locals usable directly.

      for instance :






      public UserEJBLocal getUser()
      {
      return a EJB local user;
      }

      public void edit(IRequestCycle cycle)
      {
      UserEJBLocal user = cycle.getParameters()[0];
      ...
      do smth with that damn user
      }

      that mean transparently encode EJB pk + a way to find
      its home and decode it later.

      I hope to have brought some ideas and that my POV
      is not flawed or insane.

      julien