Using XPATH to extract value.

Question

I need some help to extract the LatestFillQuantity element value using XPATH.
in Java.
I am unable to extract the value of 10000.
Please help as to what have I done wrong.?
The Document configNode contains the flwg:
<?xml version="1.0" encoding="ISO-8859-1" standalone="no"?>
<i:Interest >
     <i:Generation>3</i:Generation>
     <i:Extension>
        <i:Active.From/>
        <i:Order>
          <i:Status>Confirm</i:Status>
          <i:LatestFillQuantity>100</i:LatestFillQuantity>
        </i:Order>
</i:Extension>
</i:Interest>
My Java Code
private void extractValue(Document configNode)
     XPathFactory factory = XPathFactory.newInstance();
        XPath xpath = factory.newXPath();
          try{
         XPathExpression expr
          = xpath.compile("//i:Order/i:LatestFillQuantity/text()");
         Object result = expr.evaluate(configNode, XPathConstants.NODESET);
         NodeList nodes = (NodeList) result;
         for (int i = 0; i < nodes.getLength(); i++) {
             System.out.println(nodes.item(i).getNodeValue());
         }catch(Exception e){
              System.out.println("Sorry,this aint working");
     }

Answer 1

The nodes being parsed are namespace prefixed.
To parse a namespace node with the JDK 5.0 javax.xml.xpath package, set the NamespaceContext on the XPath object.
An implementation of NamespaceContext with a single prefix corresponding to a namespace uri:
public class NamespaceContextImpl implements NamespaceContext{
public String uri;
public String prefix;
public NamespaceContextImpl(){}
public NamespaceContextImpl(String prefix, String uri){
     this.uri=uri;
     this.prefix=prefix;
public String getNamespaceURI(String prefix){
   return uri;
public void setNamespaceURI(String uri){
   this.uri=uri;
public String getPrefix(String uri){
   return prefix;
public void setPrefix(String prefix){
   this.prefix=prefix;
public Iterator getPrefixes(String uri){return null;}
}