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  1. Tapestry 5
  2. TAP5-948

Built-in mechanism to identify self-referential links and/or event/render requests



    • Improvement
    • Status: Closed
    • Major
    • Resolution: Fixed
    •,,,,,, 5.0.15, 5.0.16, 5.0.17, 5.0.18
    • 5.2.0
    • tapestry-core
    • None


      Discussed on Tapestry user thread: http://old.nabble.com/Best-practice-for-initializing-page-to-default-context-td26689270.html
      One of the cases where the issue manifests itself is that it's more difficult to initialize a page to default context than it needs to (and redirect to it) since event requests always cause a parameterless onActivate() to be invoked as well and there's no (framework-level) support for identifying event and render requests. There are many other uses for being able to easily identify links referring back to the same page.

      Howard says:
      "I've had to solve this problem for one of my clients as well and I think it's something that should go into the framework. The approach
      I took was to identify self-referential links (page render links that are to the same page they originate from) using an additional query
      parameter. This allows Tapestry to differentiate between requests that start on a new page vs. those that continue on the page. Tapestry can
      then fire a notification on components to perform initialization (on page render requests without the query parameter).

      This would be a new lifecycle method, like pageAttached() or pageLoaded(). I'm still working on the right terminology, for Widen it is "initialized", as in method pageInitialized()."




            hlship Howard Lewis Ship
            kaosko Kalle Korhonen
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