Title: Nachricht
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Hello,
I
found out where I get the exception from. It is because I am using the Evaluator
with an XObjectPtr in scope which I am not allowed to do.
So you
are saying there isn't any easy way to set the Node Value using Xalan. Why is
there a setNodeValue( ) present then?
Thanks,
Sami
Sami Islam wrote:
Hello,
I
evaluate an _expression_ and check the result to see if the node has a
value.
When the value is empty i.e. ""
then I would like to insert a default value for the particular node.
My code:
**************************************************************************************************
const
XObjectPtr
theResult(theEvaluator.evaluate(theDOMSupport,
theDocument,
XalanDOMString("/doc/[EMAIL PROTECTED]'Tom']").c_str(),
thePrefixResolver));
assert(theResult.null() == false);
const CharVectorType
localResultVec(TranscodeToLocalCodePage(theResult->str()));
if(strcmp("", (c_str(localResultVec))) ==
0)
{
XalanNode* const
theEmptyNode = theEvaluator.selectSingleNode(
theDOMSupport,
theDocument,
XalanDOMString("/doc/[EMAIL PROTECTED]'Tom']").c_str(),
thePrefixResolver);
XalanDOMString testString("Hello");
theEmptyNode->setNodeValue(testString);
}
**************************************************************************************************
I get a assertion failed error on
m_referenceCount == 0 coming from file
XalanReferenceCountedObject.cpp.
What am I doing wrong? How can I set the value of
the node when it is empty? on the xalan FAQ web page
they say that if u wanna modifiy a DOM document you should use Xerces instead
of Xalan:
"In cases where you want to modify the DOM
document on the fly, you should use the Xerces DOM as the base document. You
can wrap the Xerces DOM in a wrapper (see passing in a Xerces
DOM) to then use as an input to a Xalan transformation. Alternatively you
can output the result of a transformation to a Xerces DOM document (see working with DOM input and output). In
either case, the Xerces document can be freely modified. However, after you
modify the document, you need to re-build the wrapper so that any changes are
replicated in the Xalan wrappers."
the sample XPathWrapper.cpp that is provided in the Xalan
project show how to use this wrapper.
Nevertheless the error
that you are getting doesn't seem to be related to the setNodeValue call. In
which statment is the exception triggered ?
---------------------------------------
Francesc
Guim Bernat
http://francesc.guim.net --
Francesc
Regards,
Sami
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