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From "Hunsberger, Peter" <>
Subject RE: ServerPageAction: XMLFragment reuse in XSL transformer
Date Thu, 17 Oct 2002 16:46:25 GMT
There's probably about half a dozen ways to do this.  Perhaps one of the
simplest is just to create your own caching generator and use aggregation
(with any other XML you may need) in the pipeline.
In the generator you'll need to implement the setup method to see the
objectModel, something like the following:
private gunk mySessionData = null;
public void setup( SourceResolver resolver, Map objectModel, String src,
Parameters parms )
      throws ProcessingException,  SAXException,   IOException
     if (mySessionData == null ) {
          super.setup( resolver, objectModel, src, parms );
          Request request =
          Session session = request.getSession(false);
          if (session != null)  {
            // save a pointer to your session data for use in the generate
            mySessionData = ....
Now in your generate method just pick up whatever data hangs off of
"mySessionData" and away you go
-----Original Message-----
From: Christian Kurz []
Sent: Thursday, October 17, 2002 11:26 AM
Subject: ServerPageAction: XMLFragment reuse in XSL transformer

Hello cocoon-users,

I need to generate some tiny XML elements (XMLFragment) within a
ServerPageAction and I would like to use this XMLFragment later on in an XSL
transformer, that is fed by an xml generator. The XMLFragment captured in
the ServerPageAction is basically saying, which nodes are to be returned
from the big input document.
>From some other message in this group I have understood, that passing
objects is only possible through session or request objects, but not through
sitemap variables. I don't like to use a request generator as the starting
point of the pipeline, as I'd loose cacheability at a very early step in the
pipeline. With a quite big xml input document, this does not seem a good
idea to me.
So I am currently struggling how to get a piece of XML, that is attached to
a session or request object, into the xsl transformer. Has anybody tried
this before e.g. using an XSL extension?
Any help or hints appreciated!
Thank you in advance,

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