Dear list,
I found the recent posting attached, but the thread ended there. This is
about Xalan-J 2.x, so I am not too sure if it belongs here, but I'll try.
Q: I have a document with the root element being in a default namespace:
<?xml version="1.0" encoding="UTF-8"?>
<Report xmlns="http://abc.com/abc/abc";;>
<Type>memo</Type>
<Type>rep</Type>
<Link name="xyz">123</Link>
</Report>
I would like to extract just the Link from that document trying to use
XPathAPI.selectNodeList(myDoc,"/report/link")
will return an empty result set.
Using
XPathAPI.selectNodeList(myDoc,"/abc:report/abc:link")
will result in a transformer exception telling me that the namespace abc
needs to be assiciated somewhere.
Where can I do that? Inside the XPath expression? I read the spec; it look
to me as if XPointer has a syntax for that while XPath hasn't. But I could
not
find any method to call in order to do this either.
Torsten
Your <Report> element is in a namespace. You are going to have to
specify this namespace in your XPath expression, using a prefix such as
/xx:Report. I don't know the XPathAPI in detail, but you will find it
provides some mechanism to associate the prefix xx with the namespace
http://abc.com/abc/abc
Michael Kay
Software AG
home: Michael(_dot_)H(_dot_)Kay(_at_)ntlworld(_dot_)com
work: Michael(_dot_)Kay(_at_)softwareag(_dot_)com
-----Original Message-----
From: Steve Ge [mailto:ges(_at_)towers(_dot_)com]
Sent: 04 October 2002 17:17
To: P2P_XSLT
Subject: [xslt] Problem with XPathAPI
Has anyone tried XPathAPI class? I'm having trouble with the
selectNodeList() method returning an empty NodeList after a
valid XPath
search.
After parsing the xml file, I used XPathAPI to get a
NodeList. But no
matter what xpath I used, the returned NodeList is always
emtpy (not null
though). The call to NodeList.getLength() returns 0, and the
NodeLiist.item(0) is null.
I've tried the example in the book "Java XML
Programmer's Reference", p676, XPathQuery.java. It failed
with the same
symptons. I figure this might be a setup / jar conflict
problem. I am
using Xcerces for parsing, and Xalan for XPath/XSLT, and I am
running a
jsp on the WebLogic 6.1 server.
Any help would be appreciated.
The code is below:
==============================================================
==========
DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
Document doc = factory.newDocumentBuilder().parse(sFilePath);
String expr = "/Report/Type/text()";
NodeList list = XPathAPI.selectNodeList(doc, expr, doc);
Node node = list.item(0);
The xml file is below:
==============================================================
==========
<?xml version="1.0" encoding="UTF-8"?>
<Report xmlns="http://abc.com/abc/abc";;>
<Type>memo</Type>
<Type>rep</Type>
<Link name="xyz">123</Link>
</Report>
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