Knoten an Java-Methode übergeben mit XALAN-Extension

  <?xml version="1.0"?>
  <?xml-stylesheet href="transform.xslt" type="text/xsl"?>
  <root>
  	<elem>1</elem>
  	<elem>2</elem>
  	<elem>3</elem>
  	<elem>4</elem>
  </root>

  <?xml version="1.0"?>
  <xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform" 
  	xmlns:xalan="http://xml.apache.org/xalan" 
  	xmlns:example-extension="xalan://de.tutorials.ExampleExtensionAction" >
  	<xsl:template match="/">
  		<xsl:apply-templates/>
  		Summe: <xsl:value-of select="example-extension:process(//elem/text())"/>
  	</xsl:template>
  </xsl:stylesheet>

  /*
   * Created on 04.02.2005@13:24:52
   *
   * TODO Licence info
   */
  package de.tutorials;
  
  import javax.xml.transform.Transformer;
  import javax.xml.transform.TransformerFactory;
  import javax.xml.transform.stream.StreamResult;
  import javax.xml.transform.stream.StreamSource;
  
  /**
   * @author Darimont
   * 
   * TODO Explain me
   */
  public class XSLTExample {
  
  	public static void main(String[] args) throws Exception {
  		new XSLTExample().doIt();
  	}
  
  	/**
  	 * 
  	 */
  	private void doIt() throws Exception {
  		Transformer t = TransformerFactory
  				.newInstance()
  				.newTransformer(
 				new StreamSource(XSLTExample.class
 						.getResourceAsStream("transform.xslt")));
  
  		t
 				.transform(new StreamSource(XSLTExample.class
 						.getResourceAsStream("in.xml")), new StreamResult(
 						"c:/out.xml"));
  	}
  }

  /*
   * Created on 04.02.2005@13:58:53
   *
   * TODO Licence info
   */
  package de.tutorials;
  
  import org.w3c.dom.NodeList;
  import org.w3c.dom.Text;
  
  /**
   * @author Darimont
   * 
   * TODO Explain me
   */
  public class ExampleExtensionAction {
  
  	public static double process(NodeList list) {
  		if (list != null) {
  			double sum = 0.0D;
 			for (int i = 0, len = list.getLength(); i < len; i++) {
 				Text text = (Text) list.item(i);
 				sum += Double.parseDouble(text.getTextContent());
  			}
  			return sum;
  		} else {
  			return Double.NaN;
  		}
  	}
  }

  <?xml version="1.0" encoding="UTF-8"?>
  	1
  	2
  	3
  	4
  
  		Summe: 10