Hi Army, thanks for your reply, it's exactly i wanted to know.
regards Petr On Mon, Jun 27, 2005 at 08:39:10AM -0700, Army wrote: > > [EMAIL PROTECTED] wrote: > >Have one more question to you. You use Xerces for parsing XML datatype. > >So you have to write your own Java function which could parse XML (using > >SAX, DOM)). > > The current XML implementation uses the Xerces parser combined with SAX to > parse an XML value and check for well-formedness. See the > "parseAndLoadXML(...)" method in org/apache/derby/iapi/types/XML.java > > >Does Xerces provide any support for XPath, XQuery? > > No, I don't think Xerces itself has support for XPath/XQuery. The current > Derby implementation uses Apache Xalan for XPath/XSLT, and since it (Xalan) > is included as part of both Sun's and IBM's 1.4 jdks, we get it for free. > This functionality is exposed through the "XMLEXISTS" operator. See the > "XMLExists(...)" and "exists(...)" methods of XML.java for the code that > uses Xalan's XSLT processor to evaluate XPath queries. > > Hope that answers your question, > Army > >
