The code is simpler in 5.4, using the AjaxResponseRenderer, but it's
basically the same thing:
- Contribute a filter into the active thread's PartialMarkupRenderer pipeline
- The filter creates an empty element for the renderable object
- The renderable object renders markup inside the element
- The body of the element is captured and stuffed into a JSONObject key
On Mon, Feb 27, 2012 at 6:10 AM, Thiago H. de Paula Figueiredo
<thiag...@gmail.com> wrote:
> Hi!
>
> Have you checked its source? Here's the 5.1.0.5 one (which is the version
> used in the project I'm working now):
>
> public class MultiZoneUpdateEventResultProcessor implements
> ComponentEventResultProcessor<MultiZoneUpdate>
> {
> private final PageRenderQueue queue;
>
> private final TypeCoercer typeCoercer;
>
> public MultiZoneUpdateEventResultProcessor(PageRenderQueue queue,
> TypeCoercer typeCoercer)
> {
> this.queue = queue;
> this.typeCoercer = typeCoercer;
> }
>
> public void processResultValue(final MultiZoneUpdate value) throws
> IOException
> {
> // There has to be at least a single command in the queue to force a
> render.
> queue.initializeForPartialPageRender(new RenderCommand()
> {
> public void render(MarkupWriter writer, RenderQueue queue)
> {
> }
> });
>
> queue.addPartialMarkupRendererFilter(new SetupZonesFilter());
>
> Map<String, Object> map = value.getZoneToRenderMap();
>
> for (String zoneId : map.keySet())
> {
> Object provided = map.get(zoneId);
>
> RenderCommand zoneRenderCommand = toRenderer(zoneId, provided);
>
> queue.addPartialMarkupRendererFilter(new
> SingleZonePartialRendererFilter(zoneId, zoneRenderCommand, queue));
> }
> }
>
> private RenderCommand toRenderer(String zoneId, Object provided)
> {
> try
> {
> return typeCoercer.coerce(provided, RenderCommand.class);
> }
> catch (Exception ex)
> {
> throw new IllegalArgumentException(String.format("Failure
> converting renderer for zone '%s': %s",
> zoneId,
>
> InternalUtils.toMessage(ex)), ex);
> }
> }
> }
>
> --
> Thiago H. de Paula Figueiredo
> Independent Java, Apache Tapestry 5 and Hibernate consultant, developer, and
> instructor
> Owner, Ars Machina Tecnologia da Informação Ltda.
> http://www.arsmachina.com.br
>
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--
Howard M. Lewis Ship
Creator of Apache Tapestry
The source for Tapestry training, mentoring and support. Contact me to
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