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Success! Thank you!
I'm guessing now that holding the handle is a general rule for the
API? Is there an easy way to tell for any call if a reference gets
retained?
Thanks,
Paul
On 8-Sep-06, at 4:29 PM, David Bertoni wrote:
Paul Lalonde wrote:
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Hi. I'm tring to use Xalan's XPath support to run queries on some
Collada documents I have. I've run into the issue that the
documents all declare themselves in an anonymous namespace:
<?xml version="1.0" encoding="utf-8"?>
<COLLADA xmlns="http://www.collada.org/2005/11/COLLADASchema";
version="1.4.0">
<asset>
...
</asset>
</COLLADA>
So I want my XPath expressions to refer through that
namespace. I thought I'd try using the XalanSimplePrefixResolver
doing something like this:
XalanSimplePrefixResolver thePrefixResolver(
XalanDOMString("c"),
XalanDOMString("http://
www.collada.org/2005/11/COLLADASchema"),
XalanDOMString("http://
www.collada.org/2005/11/COLLADASchema")
);
XalanSimplePrefixResolver holds references to existing
XalanDOMString instances, and you are passing in temporaries that
are destroyed after the constructor is called. As a result, the
instance contains references to three XalanDOMString instances that
have already been destroyed. When the XPath compiler attempts to
use the PrefixResolver, it contains garbage data.
Declare the XalanDOMString instances on the stack, not as
temporaries, and your code will work.
Dave
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