Examples of com.sun.org.apache.xpath.internal.NodeSet

Package com.sun.org.apache.xpath.internal

Examples of com.sun.org.apache.xpath.internal.NodeSet

com.sun.org.apache.xpath.internal.NodeSet

The NodeSet class can act as either a NodeVector, NodeList, or NodeIterator. However, in order for it to act as a NodeVector or NodeList, it's required that setShouldCacheNodes(true) be called before the first nextNode() is called, in order that nodes can be added as they are fetched. Derived classes that implement iterators must override runTo(int index), in order that they may run the iteration to the given index.

Note that we directly implement the DOM's NodeIterator interface. We do not emulate all the behavior of the standard NodeIterator. In particular, we do not guarantee to present a "live view" of the document ... but in XSLT, the source document should never be mutated, so this should never be an issue.

Thought: Should NodeSet really implement NodeList and NodeIterator, or should there be specific subclasses of it which do so? The advantage of doing it all here is that all NodeSets will respond to the same calls; the disadvantage is that some of them may return less-than-enlightening results when you do so.
@xsl.usage advanced


    String textNodeValue;


    if (rtf instanceof NodeIterator)
    {
      return new NodeSet((NodeIterator) rtf);
    }
    else
    {
      if (rtf instanceof String)
      {
        textNodeValue = (String) rtf;
      }
      else if (rtf instanceof Boolean)
      {
        textNodeValue = new XBoolean(((Boolean) rtf).booleanValue()).str();
      }
      else if (rtf instanceof Double)
      {
        textNodeValue = new XNumber(((Double) rtf).doubleValue()).str();
      }
      else
      {
        textNodeValue = rtf.toString();
      }


      // This no longer will work right since the DTM.
      // Document myDoc = myProcessor.getContextNode().getOwnerDocument();
      try
      {
        DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance();
        DocumentBuilder db = dbf.newDocumentBuilder();
        Document myDoc = db.newDocument();


        Text textNode = myDoc.createTextNode(textNodeValue);
        DocumentFragment docFrag = myDoc.createDocumentFragment();


        docFrag.appendChild(textNode);


        return new NodeSet(docFrag);
      }
      catch(ParserConfigurationException pce)
      {
        throw new com.sun.org.apache.xml.internal.utils.WrappedRuntimeException(pce);
      }

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   * @return true if nl1 and nl2 contain exactly the same set of nodes.
   */
  public static boolean hasSameNodes(NodeList nl1, NodeList nl2)
  {


    NodeSet ns1 = new NodeSet(nl1);
    NodeSet ns2 = new NodeSet(nl2);


    if (ns1.getLength() != ns2.getLength())
      return false;


    for (int i = 0; i < ns1.getLength(); i++)
    {
      Node n = ns1.elementAt(i);


      if (!ns2.contains(n))
        return false;
    }


    return true;
  }

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    Document doc = DocumentHolder.m_doc;




    StringTokenizer lTokenizer = new StringTokenizer(toTokenize, delims);
    NodeSet resultSet = new NodeSet();


    synchronized (doc)
    {
      while (lTokenizer.hasMoreTokens())
      {
        resultSet.addNode(doc.createTextNode(lTokenizer.nextToken()));
      }
    }


    return resultSet;
  }

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        try{
//            int value = -1;
            Document d = getVerifierContext().getRuntimeDocument();
            if (d==null)
                return -1;
            NodeSet ns = new NodeSet(XPathAPI.selectNodeList(d, xpath));
            return ns.getLength();
        }catch(Exception ex){
            ex.printStackTrace();
            return -1;
        }
    }

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            if (d==null)
                return -1;
            XObject result = XPathAPI.eval(d, xpath,
                             (PrefixResolver)new XpathPrefixResolver (d));
            NodeList nl = result.nodelist();
            NodeSet ns = new NodeSet(nl);
            return ns.getLength();
        }catch(Exception ex){
            ex.printStackTrace();
            return -1;
        }
    }

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    // evaluate the XPath expression against the Document
    XPath xpath = XPathFactory.newInstance().newXPath();


    // Order node
    NodeSet nodes = (NodeSet) xpath.evaluate("//*", document, XPathConstants.NODESET);
    nodes.getLength();
    assertEquals("1234", xpath.evaluate("//*", document, XPathConstants.NODESET));
    assertEquals("1234", xpath.evaluate("/order/@id", document, XPathConstants.STRING));
    assertEquals("1234", xpath.evaluate("/order/@id", document));
    assertEquals("05/06/2013", xpath.evaluate("/order/@date", document));

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   */
  public static NodeList highest (NodeList nl)
  {
    double maxValue = max(nl);


    NodeSet highNodes = new NodeSet();
    highNodes.setShouldCacheNodes(true);


    if (Double.isNaN(maxValue))
      return highNodes;  // empty Nodeset


    for (int i = 0; i < nl.getLength(); i++)
    {
      Node n = nl.item(i);
      double d = toNumber(n);
      if (d == maxValue)
        highNodes.addElement(n);
    }
    return highNodes;
  }

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   */
  public static NodeList lowest (NodeList nl)
  {
    double minValue = min(nl);


    NodeSet lowNodes = new NodeSet();
    lowNodes.setShouldCacheNodes(true);


    if (Double.isNaN(minValue))
      return lowNodes;  // empty Nodeset


    for (int i = 0; i < nl.getLength(); i++)
    {
      Node n = nl.item(i);
      double d = toNumber(n);
      if (d == minValue)
        lowNodes.addElement(n);
    }
    return lowNodes;
  }

View Full Code Here


    String textNodeValue;


    if (rtf instanceof NodeIterator)
    {
      return new NodeSet((NodeIterator) rtf);
    }
    else
    {
      if (rtf instanceof String)
      {
        textNodeValue = (String) rtf;
      }
      else if (rtf instanceof Boolean)
      {
        textNodeValue = new XBoolean(((Boolean) rtf).booleanValue()).str();
      }
      else if (rtf instanceof Double)
      {
        textNodeValue = new XNumber(((Double) rtf).doubleValue()).str();
      }
      else
      {
        textNodeValue = rtf.toString();
      }


      // This no longer will work right since the DTM.
      // Document myDoc = myProcessor.getContextNode().getOwnerDocument();
      try
      {
        DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance();
        DocumentBuilder db = dbf.newDocumentBuilder();
        Document myDoc = db.newDocument();


        Text textNode = myDoc.createTextNode(textNodeValue);
        DocumentFragment docFrag = myDoc.createDocumentFragment();


        docFrag.appendChild(textNode);


        return new NodeSet(docFrag);
      }
      catch(ParserConfigurationException pce)
      {
        throw new com.sun.org.apache.xml.internal.utils.WrappedRuntimeException(pce);
      }

View Full Code Here

   * @return true if nl1 and nl2 contain exactly the same set of nodes.
   */
  public static boolean hasSameNodes(NodeList nl1, NodeList nl2)
  {


    NodeSet ns1 = new NodeSet(nl1);
    NodeSet ns2 = new NodeSet(nl2);


    if (ns1.getLength() != ns2.getLength())
      return false;


    for (int i = 0; i < ns1.getLength(); i++)
    {
      Node n = ns1.elementAt(i);


      if (!ns2.contains(n))
        return false;
    }


    return true;
  }

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