evaluate method with nodelist parameter? 2007-06-17 - By Kendall Shaw
Hi,
I'm familiar with the notion of xpath expressions being evaluated
relative to a context node within a current node list.
The javadoc for the XPath.evaluate(String, Object, QName) method says
that the second parameter is the context, "a node or node list, for
example". Using Xalan 2.7, If I pass a NodeList as the second
parameter "count(self::node())" returns 0, and "self:node()" returns
an empty node list. "*/node()" results in an "Unknown error in XPath".
In Sun's SE 6 the javadoc now leaves out the words "or node list".
So, if a node list can be passed as the second parameter, how should
the XPath expression refer to it? Or, if a node list should not be
passed as the second paraemter, is there a reason why the parameter
is not of type Node? Is there another type of object other than a
sub-class of Node that can be passed as the second parameter?
Kendall
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