The C++ way of doing this is the following code fragment:
if(node.getNodeType() == DOM_Node::ELEMENT_NODE) {
DOM_Element element = static_cast<DOM_Element&>(node);
}
John Snelson
"Arnold, Curt" wrote:
>
> A very common pattern (at least in my code) when using Xerces-J's DOM is to do
>something like:
>
> for(DOM_Node node = element.getFirstChild();
> node != null;
> node = node.getNextSibling()) {
> if(node.getNodeType() == DOM_Node.ELEMENT_NODE) {
> DOM_Element childElem = (DOM_Element) node;
> //
> // do some element specific behavior
>
> I haven't found a good way to do the equivalent of:
>
> DOM_Element childElem = (DOM_Element) node;
>
> with Xerces-C. I think you could do somehting like:
>
> DOM_Element childElem = *((DOM_Element*) &node);
>
> but that seems pretty ugly and may be fatal if you didn't do the preliminary check
>for getNodeType() == ELEMENT_NODE.
>
> What I was thinking was that adding a constructor for DOM_Element that took a
>DOM_Node& and would throw an exception if the node wasn't appropriate would allow you
>to keep the Java pattern. (Of
> course, you would want to do this for all the other DOM_Comment,
>DOM_ProcessingInstruction, et al).
>
> Maybe this could go into the new DOM implementation?
--
John Snelson, Software Engineer DecisionSoft Ltd.
Telephone: +44-1865-203192 http://www.decisionsoft.com
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