Interface ComponentEventResultProcessor<T>

Type Parameters:
T - the type of the values being handled
All Known Implementing Classes:
AjaxComponentInstanceEventResultProcessor, AjaxLinkComponentEventResultProcessor, AjaxPageClassComponentEventResultProcessor, AjaxPageNameComponentEventResultProcessor, AjaxURLComponentEventResultProcessor, ClassResultProcessor, ComponentInstanceResultProcessor, HttpErrorComponentEventResultProcessor, HttpStatusComponentEventResultProcessor, JacksonComponentEventResultProcessor, JSONCollectionEventResultProcessor, JSONObjectEventResultProcessor, MultiZoneUpdateEventResultProcessor, ObjectComponentEventResultProcessor, PageNameComponentEventResultProcessor, RenderCommandComponentEventResultProcessor, StreamPageContentResultProcessor, StreamResponseResultProcessor

Responsible for handling the return value provided by a component event handler method. There are two services built into Tapestry that implement this interface: ComponentEventResultProcessor (used for ordinary page-oriented requests, and distinguished by the @Traditional and/or @Primary marker annotations) and AjaxComponentEventResultProcessor, used for Ajax requests (which typically return a partially rendered page), distinguished by the @Ajax marker annotation.
  • Method Summary

    Modifier and Type
    Method
    Description
    void
    For a given, non-null return value from a component event method, construct and send a response.
  • Method Details

    • processResultValue

      void processResultValue(T value) throws IOException
      For a given, non-null return value from a component event method, construct and send a response. Starting in release 5.4, it is recommended that for any response that involves Tapestry pages or components, the implementation should create an IOOperation to do the rendering, and add the operation to the Request as attribute TapestryConstants.RESPONSE_RENDERER. This avoids a number of issues related to the Environment.
      Parameters:
      value - the value returned from a method
      Throws:
      RuntimeException - if the value can not handled
      IOException