> Hello,
>
> getChildNodes() function always returning null pointer. When I am
looking at User Groups mails,
> Dave mentioned, to use getFirstChildNod() instead of getChildNodes.
XalanNode;:getChildNodes() is not supported -- our source tree has limited
functionality, and only implements things we really need. In addition,
using getChildNodes() is really inefficient in almost all DOM
implementations, so you should avoid it.
> My question is, if my XPATH expr is RESPONSE/ROUTCTL, in my program, I
have to return its not a LEAF_TAG/ something.
> if my Xpath is RESPONSE/ROUTCTL/MSGNO, then I have to return value
'BULK'. How can we do it?
The value bulk is represented in the tree as a text node, so you can
simply use the XPath expression "RESPONSE/ROUTCTL/MSGNO/text()" to select
the node directly.
> So, In our XML, there is sapce after ROUTCTL, so getFirstChild is
alwways returns TEXT_NODE.
>
> If we have getChildNodes(), we can do it what ever we want, by check
each node type.
You can do the same thing by calling XalanNode::getFirstChild(), then
iterate through the children by calling getNextSibling() on each child
node:
for (XalanNode* current = parent->getFirstChild(); current != 0; current =
current->getNextSibling())
{
...
}
None of your questions are Xalan-C specific. You should find a good
tutorial or book on the DOM, XPath, and XSLT.
Dave
