Hello all,
I want to check with XMLUnit if a xml-stream has got an element.
I have following input:

The XML Stream:

<ta:schema xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
           xmlns:dbm="ta.xsd"
           xmlns:xf="http://www.w3.org/2002/08/xquery-functions"
           xsi:schemaLocation="ta.xsd ta.xsd">

<ta:table name="person">
      <ta:column name="name"/>
<ta:table/>

<ta:schema/>


and the source code :

..
DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
factory.setNamespaceAware(true);

DocumentBuilder builder = factory.newDocumentBuilder();
Document document = builder.parse(inputFile);
...
assertXpathExists("//ta:table[@name='person']", document );
...


I got the error

XPST0081: XPath syntax error at char 11 in {//ta:table[@}:
    Undeclared namespace prefix {ta}

even when I load the Document with namespace-awareness on!

What goes wrong and how to avoid this?

Cheers

assertXPathExists() is your own method so I can't see what actual Saxon methods you are calling.

Before you compile an XPath expression you must declare to the static context any namespace prefixes you use in the expression. The exact way of doing this depends on the API you are using.

Michael Kay
http://www.saxonica.com/
Author, XSLT Programmer's Reference and XPath 2.0 Programmer's Reference

Hello,
the method assertXpathExists comes from XMLUnit .

It takes for the first argument the xpath expression and the second one the document.

So how to setup then the static context in case of Saxon ??
I haven't found any examples..

cheers

A quick look at XMLUnit doesn't suggest any obvious ways of binding namespaces for use in XPath expressions, but perhaps I've missed something. I suggest you take it up with the XMLUnit developers.

The following gives some background:
http://www.xml.com/pub/a/2004/02/25/qanda.html

Michael Kay
http://www.saxonica.com/
Author, XSLT Programmer's Reference and XPath 2.0 Programmer's Reference