Myujth

In eXist 4.4/XQuery 3.1 I perform an XSL 2.0 transformation using transform:transform(). In the transformation I pass a parameter into the XSL transformation for Saxon to use to access information in the database.

<param name="paramSaxondatapath" value="xmldb:exist:///db/apps/deheresi/data/"/>

Everything works great: Saxon retrieves the nodes needed from documents in eXist-DB and the XSL transformation is successful.

Now, I am trying to do execute the same but from outside the eXist-DB environment (local drive, using Oxygen). Thus, in the XSLT document I have hardcoded the parameter:

<xsl:param name="paramSaxondatapath">xmldb:exist:///db/apps/deheresi/data/</xsl:param>

Yet when I fire this XSLT file off locally (in Oxygen, local XSLT file, Saxon-HE 9.6.0.7), Saxon throws me an exception unknown protocol: xmldb

FODC0002: Exception thrown by URIResolver: 
Malformed URL 
xmldb:exist:///db/apps/deheresi/data/bibliography.xml
(base file:/Users/foo/Desktop/De_Heresi/deheresi_TEI/fo_dep_single.xsl): 
unknown protocol: xmldb

Considering that this is passed to Saxon in identical manner (ie wrapped in doc(concat(paramSaxondatapath,'somefile.xml')), I'm surprised this isn't reacting the same way both times.

Is there a different URI I should be using?

Many thanks.

EDIT: Curiously, if I use command line for the transformation (ie not triggered by Oxygen), Saxon accepts it and performs the transformation. It appears to have something to do with Oxygen...

My guess is that when eXist invokes Saxon, it sets a URIResolver that recognizes URIs with the "xmldb:exist:" prefix and handles them itself. Outside the eXist environment, you would need to supply your own URIResolver that does something similar - connects to the database and retrieves the required document.