Java tutorial
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THIS PACKAGE IS PROVIDED "AS IS" AND WITHOUT ANY EXPRESS OR IMPLIED * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF * MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE. * */ package org.chiba.xml.xforms.xpath; import org.apache.commons.jxpath.ri.Parser; import org.chiba.xml.util.DOMUtil; import org.chiba.xml.xforms.exception.XFormsException; import org.w3c.dom.Document; import org.w3c.dom.Element; import javax.xml.parsers.DocumentBuilder; import javax.xml.parsers.DocumentBuilderFactory; /** * XPathCompiler * * @author <a href="mailto:unl@users.sourceforge.net">Ulrich Nicolas Lissé</a> * @version $Id: XPathCompiler.java,v 1.5 2004/08/15 14:14:16 joernt Exp $ */ public class XPathCompiler { /** * Creates a new XPathCompiler object. */ public XPathCompiler() { // NOP } /** * __UNDOCUMENTED__ * * @param xpath __UNDOCUMENTED__ * @return __UNDOCUMENTED__ * @throws XFormsException __UNDOCUMENTED__ */ public Document compile(String xpath) throws XFormsException { try { DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance(); factory.setNamespaceAware(true); factory.setValidating(false); DocumentBuilder builder = factory.newDocumentBuilder(); Document document = builder.newDocument(); Element root = document.createElement("xpath"); root.setAttribute("expression", xpath); document.appendChild(root); Element result = (Element) Parser.parseExpression(xpath, new DOMCompiler(document)); root.appendChild(result); return document; } catch (Exception e) { throw new XFormsException(e); } } /** * __UNDOCUMENTED__ * * @param args __UNDOCUMENTED__ */ public static void main(String[] args) { try { if (args != null) { XPathCompiler compiler = new XPathCompiler(); // for (int index = 0; index < args.length; index++) { Document document = compiler .compile("ancestor::a/my:b + /a/d - sum(xforms:instance('foo')/a/b) + count(../a)"); DOMUtil.prettyPrintDOM(document, System.err); // } } } catch (Exception e) { e.printStackTrace(); } } } /* $Log: XPathCompiler.java,v $ Revision 1.5 2004/08/15 14:14:16 joernt preparing release... -reformatted sources to fix mixture of tabs and spaces -optimized imports on all files Revision 1.4 2003/11/07 00:25:46 joernt optimized imports Revision 1.3 2003/10/02 15:15:50 joernt applied chiba jalopy settings to whole src tree Revision 1.2 2003/07/31 02:09:35 joernt optimized imports Revision 1.1 2003/07/01 22:10:02 unl - initial implementation */