Hi Matynas,
I'm going through a PHP-to-Java conversion myself.

Using JSP and JSTL, I've used the following method:
(illustrating passing of request parameters)

In the JSP page:
   <x:parse var="requestXml">
   <params>
      <param id="action">${param['action']}</param>
      ...
   </params>
   </x:parse>
...
   <x:translate doc="<uri of XML document>" xslt="URI of XSLT document">
      <x:param name="rx" value="${requestXml"} />
      ...
   </x:translate>

In the XSLT:
   ...
   <xsl:param name="rx" />

   <p>Action:<xsl:value-of select="$rx/params/param[@id='action']" /><br/>
   ...

More info about Xalan-Java extensions here:
   http://xml.apache.org/xalan-j/extensions.html#ext-functions

Hi,

probably this is an old issue, but I'm struggling to find a solution.

My XSLT stylesheet is using several side documents that are
constructed at run-time.

Back in PHP I was passing them using a stream wrapper and a custom
"arg:" protocol. Then, for example, the stylesheet could get access
through document('arg://mydoc').

Obviously, that doesn't work in Java. So how do you do it in Java? I'm
using JDK 1.5 and the standard java.xml.transform package.

Thanks,

Martynas