bind my java function to saxon XSLT processor

Question

I have my own java static function in a class:

package com.test;

public class A {

    public static void returnSameNodes(Object nodes){
        return nodes;
    }


}

I tried to bind this function to XSLT:

<?xml version="1.0" encoding="UTF-8"?>
<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform" version="2.0" xmlns:ext="java:com.test.A" >
    <xsl:template match="root">
        <xsl:apply-templates select="ext:returnSameNodes(//child::*)"></xsl:apply-templates>
    </xsl:template>
</xsl:stylesheet>

, but with the following error:

Cannot find a matching 1-argument function named etc.

I know what I'm doing wrong - I have to tell saxon(9B) that my class is in particular location, but I don't know how to do this. Any suggestions?? Including for example Math.sqrt() works great. Thanks

EDIT: The problem is setting up Java class path,anybody knows how to do this for this particular case? There is a note in a following link about setting a classpath variable, but how? http://www.saxonica.com/documentation/extensibility/functions.xml Thank you for suggestions

Can you provide me with some details (API reference, etc.) on how to write custom functions for XSLT in Java? I have never heard of a such possibility in Saxon. — jsalonen
– jsalonen, Commented Nov 28, 2011 at 21:24
Are you referring to this? saxonica.com/documentation/extensibility/functions.xml — jsalonen
– jsalonen, Commented Nov 28, 2011 at 21:27
cafeconleche.org/books/xmljava/chapters/ch17s03.html nice article but:) — MartinM
– MartinM, Commented Nov 28, 2011 at 21:27

Michael Kay · Accepted Answer · 2011-11-29 08:40:50Z

1

If you're running from the command line, then

(a) use the -TJ option to get better diagnostics on problems with extension functions

(b) ensure the class containing your method is on the classpath, for example

java -cp mycode;saxon9ee.jar net.sf.saxon.Transform -TJ -xsl:xxx.xsl -s:yyy.xml

where mycode is the directory containing your compiled class

(c) ensure you are using a Saxon release that supports reflexive extension functions (Saxon-HE does not).

answered Nov 29, 2011 at 8:40

Michael Kay

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