Venkat, I made a couple of points below. Send me the stylesheet and I'll look through it if you want. The complication for your second question is that in XPath/XSLT 1.0, some instructions work with the first node in a nodeset, while others iterate through the whole nodeset.
Cheers, -Doug From: "Venkata Krishnan" <[EMAIL PROTECTED]> To: tuscany-dev <[email protected]> Date: 02/08/2008 07:23 AM Subject: XPath related question Hi, I am trying to get some xpaths evaluated against a composite file. I have a couple of questions related to xpath queries. Can somebody familiar please help. Thanks. My composite element in the composite file defines the defaultnamespace - xmlns="http://www.osoa.org/xmlns/sca/1.0";. Given this if I construct a xpath that is like "/composite" or "/composite/component" the query does not return any result. * If you're using XPath/XSLT 1.0, you have to use the namespace inside the * XPath expression. If you have the option to move to XPath/XSLT 2.0 (depends * on your application), XSLT 2.0 adds the xpath-default-namespace attribute to * <xsl:stylesheet>. On the other hand if I added the following namespace declaration to the composite element "xmlns*:sca*="http://www.osoa.org/xmlns/sca/1.0"; and then constructed an xpath - "/sca:composite" or "/sca:composite/sca:component", then the query returns the expected results. Any clues to what I am missing out here ? * This is what you have to do for XPath/XSLT 1.0. If a node is namespace- * qualified in the XML document, it has to be namespace-qualified in the XPath * expression as well. If you move to 2.0, you can do this: * <xsl:stylesheet version="2.0" * ... * xpath-default-namespace="http://www.osoa.org/xmlns/sca/1.0"; * xmlns:sca="http://www.osoa.org/xmlns/sca/1.0";> * . . . * <xsl:template match="/composite/component"> * The xpath-default-namespace attribute tells XPath to assume every element * is qualified with the default namespace. The other question I have is, to an xpath - "/sca:composite/sca:component" I expect the set of all component nodes to be returned, but instead I seem to be getting just the first one. How do I get the set of all component nodes ? * This depends on how your stylesheet is set up. In XPath/XSLT 1.0, the * stylesheet processor uses the first node of a nodeset in many cases. * (This can get complicated and causes errors when you move to XSLT 2.0.) * If you do something like this: * <xsl:for-each select="/sca:composite/sca:component"> * The stylesheet will iterate through all of the nodes matched by the XPath * expression. On the other hand, this expression only works with the first * node in the nodeset: * <xsl:value-of select="/sca:composite/sca:component"/> Thanks - Venkat
