The alternative, and the only one supported in Xalan, is to get the first
child, and call getNextSibling() on that child until you get to the end of
the sibling list.
Just grep the Xalan source code for getFirstChild() and you should find
numerous examples.
Dave
Ben Giddings
<[EMAIL PROTECTED] To: [EMAIL PROTECTED]
bhelp.com> cc: (bcc: David N
Bertoni/CAM/Lotus)
Subject: Alternatives to
getChildNodes()
10/31/2001 11:06
AM
Hi there,
I have some XML data that looks like:
...
<Entry>
<Date>2001-10-20</Date>
<Count>32</Count>
</Entry>
<Entry>
<Date>2001-10-21</Date>
<Count>78</Count>
</Entry>
<Entry>
<Date>2001-10-22</Date>
<Count>43</Count>
</Entry>
<Entry>
<Date>2001-10-23</Date>
<Count>3</Count>
</Entry>
...
I've been trying to come up with an extension function that will sum all
the counts over a certain date range.
My call looks something like:
<xsl:value-of select="my-ext:sumOverDays(../*, '--10-21', 1, 'Count',
'Date')"/>
My first parameter to the function passes in a NodeList with all the
"Entry" nodes in it. Each "Entry" node should have 2 child nodes,
"Date" and "Count". The problem is that if I say:
node_list.item(i).getChildNodes();
I get a "Not Supported Exception" because the implementation of the Node
is a DTMNodeProxy and the method is defined as:
public final NodeList getChildNodes()
{
throw new DTMDOMException(DOMException.NOT_SUPPORTED_ERR);
}
So, my question is, how do I get a sum over a range of dates like this?
Because my range of values is a range of dates, I can't come up with
an XPath statement that returns that set of nodes and passes it to the
extension function.
Can anyone enlighten me?
Ben
