Examples of org.apache.xpath.axes.LocPathIterator

org.apache.xpath.axes.LocPathIterator
3.org/TR/xpath#NT-LocationPath>LocationPath.
If setShouldCacheNodes(true) is called, as each node is iterated via nextNode(), the node is also stored in the NodeVector, so that previousNode() can easily be done, except in the case where the LocPathIterator is "owned" by a UnionPathIterator, in which case the UnionPathIterator will cache the nodes.

    PredicatedNodeTest iter = (PredicatedNodeTest) xctxt.getSubContextList();
    Node currentNode;


    if (null != iter)
    {
      LocPathIterator lpi = iter.getLocPathIterator();


      currentNode = lpi.getCurrentContextNode();
    }
    else
    {
      ContextNodeList cnl = xctxt.getContextNodeList();

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    walker.setPredicateCount(walker.getPredicateCount() - 1);
    walker.setNextWalker(null);
    walker.setPrevWalker(null);


    LocPathIterator lpi = walker.getLocPathIterator();
    AxesWalker savedWalker = lpi.getLastUsedWalker();


    try
    {
      lpi.setLastUsedWalker(walker);


      Node next;


      while (null != (next = walker.nextNode()))
      {
        pos++;
      }


      // TODO: Should probably save this in the iterator.
    }
    finally
    {
      lpi.setLastUsedWalker(savedWalker);
    }


    // System.out.println("pos: "+pos);
    return pos;
  }

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  public LocPathIterator getNodeSetByKey(
          XPathContext xctxt, Node doc, QName name, String ref, PrefixResolver nscontext)
            throws javax.xml.transform.TransformerException
  {


    LocPathIterator nl = null;
    ElemTemplateElement template = (ElemTemplateElement) nscontext;  // yuck -sb


    if ((null != template)
            && null != template.getStylesheetRoot().getKeysComposed())
    {

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          // ISTRUE being used as a dummy value.
          usedrefs.put(ref, ISTRUE);
        }


        LocPathIterator nl =
          kmgr.getNodeSetDTMByKey(xctxt, docContext, keyname, ref,
                               xctxt.getNamespaceContext());


//        try
//        {
          upi.addIterator((LocPathIterator)nl.asIterator(xctxt, docContext));
//        }
//        catch(CloneNotSupportedException cnse)
//        {
//          // will never happen.
//        }
        //mnodeset.addNodesInDocOrder(nl, xctxt); needed??
      }


      int current = xctxt.getCurrentNode();
      upi.setRoot(current, xctxt);


      nodes = new XNodeSet(upi);
    }
    else
    {
      XMLString ref = arg.xstr();
      LocPathIterator nl = kmgr.getNodeSetDTMByKey(xctxt, docContext, keyname,
                                                ref,
                                                xctxt.getNamespaceContext());


      try
      {
        nodes = new XNodeSet((LocPathIterator)nl.cloneWithReset());
      }
      catch(CloneNotSupportedException cnse)
      {
        // will never happen.
      }

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Related Classes of org.apache.xpath.axes.LocPathIterator

org.apache.xalan.templates.FuncKey

org.apache.xalan.templates.RedundentExprEliminator

org.apache.xalan.transformer.KeyManager

org.apache.xml.dtm.DTM

org.apache.xml.dtm.DTMIterator

org.apache.xpath.axes.AxesWalker

org.apache.xpath.functions.FuncCurrent

org.apache.xpath.NodeSet

org.apache.xpath.NodeSetDTM

org.apache.xpath.objects.XNodeSet

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