Examples of org.apache.xpath.XPath

org.apache.xpath.XPath
The XPath class wraps an expression object and provides general services for execution of that expression.

            throws org.xml.sax.SAXException
  {


    try
    {
      XPath expr = handler.createXPath(value, owner);


      return expr;
    }
    catch (TransformerException te)
    {

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            throws org.xml.sax.SAXException
  {


    try
    {
      XPath pattern = handler.createMatchPatternXPath(value, owner);


      return pattern;
    }
    catch (TransformerException te)
    {

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      int nPatterns = tokenizer.countTokens();
      Vector patterns = new Vector(nPatterns);


      for (int i = 0; i < nPatterns; i++)
      {
        XPath pattern =
          handler.createMatchPatternXPath(tokenizer.nextToken(), owner);


        patterns.addElement(pattern);
      }

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   */
  public XPath createXPath(String str, ElemTemplateElement owningTemplate)
          throws javax.xml.transform.TransformerException
  {
    ErrorListener handler = m_stylesheetProcessor.getErrorListener();
    XPath xpath = new XPath(str, owningTemplate, this, XPath.SELECT, handler, 
            m_funcTable);
    // Visit the expression, registering namespaces for any extension functions it includes.
    xpath.callVisitors(xpath, new ExpressionVisitor(getStylesheetRoot()));
    return xpath;
  }

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   */
  XPath createMatchPatternXPath(String str, ElemTemplateElement owningTemplate)
          throws javax.xml.transform.TransformerException
  {
    ErrorListener handler = m_stylesheetProcessor.getErrorListener();
    XPath xpath = new XPath(str, owningTemplate, this, XPath.MATCH, handler, 
        m_funcTable);
    // Visit the expression, registering namespaces for any extension functions it includes.
    xpath.callVisitors(xpath, new ExpressionVisitor(getStylesheetRoot()));
    return xpath;    
  }

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  {
    // See if we can reduce an RTF to a select with a string expression.
    if(null == m_selectPattern  
       && sroot.getOptimizer())
    {
      XPath newSelect = rewriteChildToExpression(this);
      if(null != newSelect)
        m_selectPattern = newSelect;
    }
    
    StylesheetRoot.ComposeState cstate = sroot.getComposeState();

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        if (valueof.getDisableOutputEscaping() == false
                && valueof.getDOMBackPointer() == null)
        {
          varElem.m_firstChild = null;


          return new XPath(new XRTreeFragSelectWrapper(valueof.getSelect().getExpression()));
        }
      }
      else if (Constants.ELEMNAME_TEXTLITERALRESULT == etype)
      {
        ElemTextLiteral lit = (ElemTextLiteral) t;


        if (lit.getDisableOutputEscaping() == false
                && lit.getDOMBackPointer() == null)
        {
          String str = lit.getNodeValue();
          XString xstr = new XString(str);


          varElem.m_firstChild = null;


          return new XPath(new XRTreeFragSelectWrapper(xstr));
        }
      }
    }


    return null;

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                                           LocPathIterator lpi) 
        throws org.w3c.dom.DOMException 
  {
    ElemVariable psuedoVar = new ElemVariable();
    psuedoVar.setIsTopLevel(true);
  XPath xpath = new XPath(lpi);
  psuedoVar.setSelect(xpath);
  psuedoVar.setName(uniquePseudoVarName);
  
  Vector globalVars = stylesheetRoot.getVariablesAndParamsComposed();
  psuedoVar.setIndex(globalVars.size());

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                                           LocPathIterator lpi) 
        throws org.w3c.dom.DOMException 
  {
    ElemVariable psuedoVar = new ElemVariablePsuedo();
    
    XPath xpath = new XPath(lpi);
    psuedoVar.setSelect(xpath);
    psuedoVar.setName(uniquePseudoVarName);


    ElemVariable var = addVarDeclToElem(psuedoVarRecipient, lpi, psuedoVar);

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   *
   * @param template
   */
  public void setTemplate(ElemTemplate template)
  {
    XPath matchXPath = template.getMatch();
    
    if (null == template.getName() && null == matchXPath)
    {  
      template.error(XSLTErrorResources.ER_NEED_NAME_OR_MATCH_ATTRIB,
          new Object[]{ "xsl:template" });
    }
    
    if (null != template.getName())
    {
      ElemTemplate existingTemplate = (ElemTemplate) m_namedTemplates.get(template.getName());
      if (null == existingTemplate)
      {
        m_namedTemplates.put(template.getName(), template);
      }
      else
      {
        int existingPrecedence =
                        existingTemplate.getStylesheetComposed().getImportCountComposed();
        int newPrecedence = template.getStylesheetComposed().getImportCountComposed();
        if (newPrecedence > existingPrecedence)
        {
          // This should never happen
          m_namedTemplates.put(template.getName(), template);
        }
        else if (newPrecedence == existingPrecedence)
          template.error(XSLTErrorResources.ER_DUPLICATE_NAMED_TEMPLATE,
                       new Object[]{ template.getName() });
      }
    }


    


    if (null != matchXPath)
    {
      Expression matchExpr = matchXPath.getExpression();


      if (matchExpr instanceof StepPattern)
      {
        insertPatternInTable((StepPattern) matchExpr, template);
      }

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