[jdom-interest] JDOM, XPath and Namespaces

Jon Sharp jon.sharp at j2ssolutions.com
Mon Aug 18 02:10:21 PDT 2003

>Jon Sharp wrote:
>>I tried XPath.addNamespace() but without any joy, eg following retuns 0 
>>items in List:
>>Namespace ns=Namespace.getNamespace("http://www.xxxx.com/envelope");
>>XPath xp = XPath.newInstance("/TopLevElement");
>>List xlist = xp.selectNodes(tdoc);
>The key point to remember is that there is no default namespace in XPath. 
>That is, whether your document uses namespace prefixes or not, you have to 
>use prefixes when referencing namespaces in XPath expressions. These 
>prefixes do not have to match the ones used in the document if you declare 
>the namespace using XPath.addNamespace().
>For example:
>    Namespace ns=Namespace.getNamespace("foo", 
> "http://www.xxxx.com/envelope");
>    XPath xp = XPath.newInstance("/foo:TopLevElement");
>    xp.addNamespace(ns);
>    List xlist = xp.selectNodes(tdoc);

Many thanks, this sorted it out!


Jon Sharp    tel: +44 1273 504004    mobile: +44 7739 430793
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