If you want to use the resulting xpath string with org.apache.xpath.XPathAPI, and you ever use xmlns="someURI" you need to start the element names in that namespace with colon in XPath expressions fed to XPathAPI. I don't know why, but it's probably a faq.
Jeff ----- Original Message ----- From: "Dominique Devienne" <[EMAIL PROTECTED]> To: "'Jeff Greif'" <[EMAIL PROTECTED]>; "Joseph Kesselman" <[EMAIL PROTECTED]> Cc: <[EMAIL PROTECTED]> Sent: Tuesday, November 26, 2002 1:17 PM Subject: RE: xpath constructor > Shouldn't you add the ':' only if prefix is non-null? --DD > > -----Original Message----- > From: Jeff Greif [mailto:[EMAIL PROTECTED] > Sent: Tuesday, November 26, 2002 3:12 PM > To: Jeff Greif; Joseph Kesselman > Cc: [EMAIL PROTECTED] > Subject: Re: xpath constructor > > This is a better solution not depending on anything but pure DOM, and > possibly with better performance. It could be improved if there is some > kind of publicly accessible table of intern'ed strings in the DOM > implementation. > > public static String getPathFromRoot(Element e) { > Node p = e.getParentNode(); > StringBuffer path = new StringBuffer(); > try { > if (p.getNodeType() == Node.ELEMENT_NODE ) { > path.append(getPathFromRoot((Element)p)); > } > path.append("/"); > String prefix = e.getPrefix(); > String local = e.getLocalName(); > String namespaceUri = e.getNamespaceURI(); > path.append(prefix != null ? prefix : ""); > path.append(":"); > path.append(local); > int siblings = 0; > for (Node s=e.getPreviousSibling(); s != null; > s=s.getPreviousSibling()) { > if (s.getNodeType()== Node.ELEMENT_NODE > && s.getLocalName().equals(local) > && s.getNamespaceURI().equals(namespaceUri)) { > ++siblings; > } > } > path.append("["); > path.append(1 + siblings); > path.append("]"); > return path.toString(); > > } catch (Exception ex) { > ex.printStackTrace(System.err); > System.exit(-63); > } > return ""; > } >
