Dave, Thanks a ton for your response.
-Indrajit On Fri, 16 Feb 2007 David Bertoni wrote : >Indrajit Bhattacharya wrote: >>Hi Dave, >> >>Thanks a lot for your reply. >> >> >>We store all our data as xerces DOM in our application. Is there any >> problem using these xercesc::DOMNode* data with Xalan for XPath and XSLT ? >> >> >> > >> >That depends on what you mean by "problem..." >> >>Here my intension is: given a xercesc::DOMNode* pointer, we need to perform >>XPath expression evaluation, the expression being taken from user of the >>application. Do you see any issue in this use model ? > >As I said before, the issues are with the size of the DOM instance, and the >kinds of XPath expressions you use. Memory usage is higher when using the >Xerces-C DOM, because Xalan-C create objects that wrap the DOM nodes. So, if >you expect to use very large documents, the memory requirements might cause >problems. > >Also, ordering node-sets is much slower with the Xerces-C DOM, as it is does >not have an efficient way to order nodes. If you evaluate lots of XPath >expressions with multiple steps, and those expressions return lots of nodes, >you will find performance will suffer. > >Dave
