Examples of org.apache.xpath.Expression

org.apache.xpath.Expression
This abstract class serves as the base for all expression objects. An Expression can be executed to return a {@link org.apache.xpath.objects.XObject}, normally has a location within a document or DOM, can send error and warning events, and normally do not hold state and are meant to be immutable once construction has completed. An exception to the immutibility rule is iterators and walkers, which must be cloned in order to be used -- the original must still be immutable.


    XPath matchXPath = template.getMatch();


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


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

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    double priority = matchPat.getTemplate().getPriority();


    if (priority == XPath.MATCH_SCORE_NONE)
    {
      Expression ex = matchPat.getStepPattern();


      if (ex instanceof NodeTest)
      {
        return ((NodeTest) ex).getDefaultScore();
      }

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    {
      int nArgs = m_argVec.size();


      for (int i = 0; i < nArgs; i++)
      {
        Expression arg = (Expression) m_argVec.elementAt(i);


        arg.fixupVariables(vars, globalsSize);
      }
    }
  }

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    Vector argVec = new Vector();
    int nArgs = m_argVec.size();


    for (int i = 0; i < nArgs; i++)
    {
      Expression arg = (Expression) m_argVec.elementAt(i);
      
      XObject xobj = arg.execute(xctxt);
      /*
       * Should cache the arguments for func:function
       */
      xobj.allowDetachToRelease(false); 
      argVec.addElement(xobj);

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   */
  public void callArgVisitors(XPathVisitor visitor)
  {
      for (int i = 0; i < m_argVec.size(); i++)
      {
         Expression exp = (Expression)m_argVec.elementAt(i);
         exp.callVisitors(new ArgExtOwner(exp), visitor);
      }
    
  }

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    int nArgs = m_argVec.size();


    for (int i = 0; i < nArgs; i++)
    {
      Expression arg = (Expression) m_argVec.elementAt(i);


      arg.exprSetParent(n);
    }    
  }

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          rth.processingInstruction(
            javax.xml.transform.Result.PI_DISABLE_OUTPUT_ESCAPING, "");


        try
        {
          Expression expr = m_selectExpression.getExpression();


          if (TransformerImpl.S_DEBUG)
          {
            XObject obj = expr.execute(xctxt);


            transformer.getTraceManager().fireSelectedEvent(current, this,
                    "select", m_selectExpression, obj);
            obj.dispatchCharactersEvents(rth);
          }
          else
          {
            expr.executeCharsToContentHandler(xctxt, rth);
          }
        }
        finally
        {
          if (m_disableOutputEscaping)

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


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

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    double priority = matchPat.getTemplate().getPriority();


    if (priority == XPath.MATCH_SCORE_NONE)
    {
      Expression ex = matchPat.getStepPattern();


      if (ex instanceof NodeTest)
      {
        return ((NodeTest) ex).getDefaultScore();
      }

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        // The following code fixes bug#16889
        // Solution: Store away XPath in setSelect(Xath), and use it here.
        // Pass m_xath, which the current node is associated with, onto the TraceManager.
        
        Expression expr = m_xpath.getExpression();
        org.apache.xpath.objects.XObject xObject = expr.execute(xctxt);
        int current = xctxt.getCurrentNode();
        transformer.getTraceManager().fireSelectedEvent(
            current,
            this,
            "select",

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