Examples of org.apache.xpath.objects.XObject.num()

org.apache.xpath.objects.XObject.num()
Cast result object to a number. Always issues an error. @return 0.0 @throws javax.xml.transform.TransformerException

            node = xobject.str();
            break;


          case XObject.CLASS_NUMBER :
            ni = EMPTY_NODE_ITERATOR;
            node = new Double(xobject.num());
            break;
        }


        if (node != null)
        {

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    CountersTable ctable = transformer.getCountersTable();


    if (null != m_valueExpr)
    {
      XObject countObj = m_valueExpr.execute(xctxt, sourceNode, this);
      long count = (long)java.lang.Math.floor(countObj.num()+ 0.5);


      list = new long[1];
      list[0] = count;
    }
    else

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          try
          {
            if (XObject.CLASS_NUMBER == pred.getType())
            {
              int pos = (int) pred.num();
  
              if (positionAlreadySeen)
              {
                result = (pos == 1);

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    try
    {
      XObject score = execute(xctxt);


      return score.num();
    }
    finally
    {
      xctxt.popCurrentNode();
      xctxt.popCurrentExpressionNode();

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      if (score != NodeTest.SCORE_NONE)
      {
        if (null == bestScore)
          bestScore = score;
        else if (score.num() > bestScore.num())
          bestScore = score;
      }
    }


    if (null == bestScore)

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      XObject score = m_mainExp.execute(xctxt);


      if (DEBUG_MATCHES)
      {
        DTM dtm = xctxt.getDTM(context);
        System.out.println("score: " + score.num() + " for "
                           + dtm.getNodeName(context) + " for xpath "
                           + this.getPatternString());
      }


      return score.num();

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        System.out.println("score: " + score.num() + " for "
                           + dtm.getNodeName(context) + " for xpath "
                           + this.getPatternString());
      }


      return score.num();
    }
    finally
    {
      xctxt.popCurrentNode();
      xctxt.popCurrentExpressionNode();

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        n1Num = r1.num();


        // Can't use NaN for compare. They are never equal. Use zero instead.
        // That way we can keep elements in document order. 
        //n1Num = Double.isNaN(d) ? 0.0 : d;
        n2Num = r2.num();
        //n2Num = Double.isNaN(d) ? 0.0 : d;
      }


      if ((n1Num == n2Num) && ((kIndex + 1) < m_keys.size()))
      {

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        double d;


        if (k1.m_treatAsNumbers)
        {
          d = r.num();


          // Can't use NaN for compare. They are never equal. Use zero instead.  
          m_key1Value = new Double(d);
        }
        else

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            XObject r2 = k2.m_selectPat.execute(m_execContext, node,
                                                k2.m_namespaceContext);


            if (k2.m_treatAsNumbers)
            {
              d = r2.num();
              m_key2Value = new Double(d);
            }
            else
              m_key2Value = k2.m_col.getCollationKey(r2.str());
          }

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