XPath examples

Where can I find some more examples of Xpath usage in JDOM2?  The online documentation is a bit sparse.

I'm specifically confused about how the variables are used.  And if I'm not using variables, it seems that I must use the XPathBuilder to set the namespace.  Wouldn't it make sense for XPathFactory to have a compile(String expression, Namespace ns, Filter filter) version?
Or XPathExpression could have a setNamespace() method.

Thanks

Peter Kronenberg
Software Engineer
Technica Corporation
[email protected]<mailto:[email protected]>
703.885.1222 (Office)

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