Em Sat, 12 Dec 2009 07:36:43 -0200, Ilya Obshadko
<ilya.obsha...@gmail.com> escreveu:
That is, no way to do that using MarkupWriter? Could you explain why?
I've wrote a quick test and yes, you can use MarkupWriter to generate a
page. I previously thought that it wasn't possible. I've learned something
today. Nice. :)
My page:
public class Test {
@BeginRender
public void render(MarkupWriter writer) {
writer.element("html");
writer.element("head");
writer.element("body");
writer.write("Hello, Tapestry world!");
writer.end();
writer.end();
writer.end();
}
}
Reading your original message again, you said that you used writeRaw(). It
doesn't work because Tapestry expects to have a root element. Using a
single MarkupWriter.writeRaw() call doesn't generate a root element.
MarkupWriter doesn't parse what writeRaw() writes, so it just knows when
the root element was created when you invoke element() the first time. In
this case, you can't use MarkupWriter to output Rome's output.
You could, however, generate the RSS feed using MarkupWriter only, one
element() call per element, without using Rome.
I've already read about onActivate () and TextStreamResponse, but tried
to avoid it.
Why? Taking a quick look at the Rome package, I've found the
SyndFeedOutput class. It has a method, outputString(), that writes the XML
output to a String. Your code will look like this:
Object onActivate() {
SeedFeed feed = ...;
// populate feed
SyndFeedOutput sfo = new SyndFeedOutput();
String output = sfo.outputString();
return new TextStreamResponse(output, "text/xml");
}
It can't get easier than this. :)
Using template to form RSS output is unfortunately not an option in my
case.
Why not? Just curious. :)
--
Thiago H. de Paula Figueiredo
Independent Java, Apache Tapestry 5 and Hibernate consultant, developer,
and instructor
Owner, software architect and developer, Ars Machina Tecnologia da
Informação Ltda.
http://www.arsmachina.com.br
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