Java DTM.getStringValue方法代码示例

import org.apache.xml.dtm.DTM; //导入方法依赖的package包/类
/**
 * Execute the first argument expression that is expected to return a
 * string.  If the argument is null, then get the string value from the
 * current context node.
 *
 * @param xctxt Runtime XPath context.
 *
 * @return The string value of the first argument, or the string value of the
 *         current context node if the first argument is null.
 *
 * @throws javax.xml.transform.TransformerException if an error occurs while
 *                                   executing the argument expression.
 */
protected XMLString getArg0AsString(XPathContext xctxt)
        throws javax.xml.transform.TransformerException
{
  if(null == m_arg0)
  {
    int currentNode = xctxt.getCurrentNode();
    if(DTM.NULL == currentNode)
      return XString.EMPTYSTRING;
    else
    {
      DTM dtm = xctxt.getDTM(currentNode);
      return dtm.getStringValue(currentNode);
    }
    
  }
  else
    return m_arg0.execute(xctxt).xstr();   
}
 

import org.apache.xml.dtm.DTM; //导入方法依赖的package包/类
/**
 * Execute the first argument expression that is expected to return a
 * number.  If the argument is null, then get the number value from the
 * current context node.
 *
 * @param xctxt Runtime XPath context.
 *
 * @return The number value of the first argument, or the number value of the
 *         current context node if the first argument is null.
 *
 * @throws javax.xml.transform.TransformerException if an error occurs while
 *                                   executing the argument expression.
 */
protected double getArg0AsNumber(XPathContext xctxt)
        throws javax.xml.transform.TransformerException
{

  if(null == m_arg0)
  {
    int currentNode = xctxt.getCurrentNode();
    if(DTM.NULL == currentNode)
      return 0;
    else
    {
      DTM dtm = xctxt.getDTM(currentNode);
      XMLString str = dtm.getStringValue(currentNode);
      return str.toDouble();
    }
    
  }
  else
    return m_arg0.execute(xctxt).num();
}
 

import org.apache.xml.dtm.DTM; //导入方法依赖的package包/类
/**
 * Execute the function.  The function must return
 * a valid object.
 * @param xctxt The current execution context.
 * @return A valid XObject.
 *
 * @throws javax.xml.transform.TransformerException
 */
public XObject execute(XPathContext xctxt) throws javax.xml.transform.TransformerException
{

  DTMIterator nodes = m_arg0.asIterator(xctxt, xctxt.getCurrentNode());
  double sum = 0.0;
  int pos;

  while (DTM.NULL != (pos = nodes.nextNode()))
  {
    DTM dtm = nodes.getDTM(pos);
    XMLString s = dtm.getStringValue(pos);

    if (null != s)
      sum += s.toDouble();
  }
  nodes.detach();

  return new XNumber(sum);
}
 

import org.apache.xml.dtm.DTM; //导入方法依赖的package包/类
/**
 * Get the value of a node as a number.
 * @param n Node to be converted to a number.  May be null.
 * @return value of n as a number.
 */
public double toNumber(org.w3c.dom.Node n)
{
  // %REVIEW% You can't get much uglier than this...
  int nodeHandle = getDTMHandleFromNode(n);
  DTM dtm = getDTM(nodeHandle);
  XString xobj = (XString)dtm.getStringValue(nodeHandle);
  return xobj.num();
}
 

import org.apache.xml.dtm.DTM; //导入方法依赖的package包/类
/**
 * Get the value of a node as a string.
 * @param n Node to be converted to a string.  May be null.
 * @return value of n as a string, or an empty string if n is null.
 */
public String toString(org.w3c.dom.Node n)
{
  // %REVIEW% You can't get much uglier than this...
  int nodeHandle = getDTMHandleFromNode(n);
  DTM dtm = getDTM(nodeHandle);
  XMLString strVal = dtm.getStringValue(nodeHandle);
  return strVal.toString();
}