DescendantEnumeration.java

package org.cdlib.xtf.lazyTree;

import net.sf.saxon.om.SequenceIterator;
import net.sf.saxon.pattern.NodeTest;

final class DescendantEnumeration extends TreeEnumeration 
{
  private NodeImpl root;
  private boolean includeSelf;

  public DescendantEnumeration(NodeImpl node, NodeTest nodeTest,
                               boolean includeSelf) 
  {
    super(node, nodeTest);
    root = node;
    this.includeSelf = includeSelf;
    if (!includeSelf || !conforms(node)) {
      advance();
    }
  }

  protected void step() {
    next = next.getNextInDocument(root);
  }

  /**
  * Get another enumeration of the same nodes
  */
  public SequenceIterator getAnother() {
    return new DescendantEnumeration(start, nodeTest, includeSelf);
  }
}

//
// The contents of this file are subject to the Mozilla Public License Version 1.0 (the "License");
// you may not use this file except in compliance with the License. You may obtain a copy of the
// License at http://www.mozilla.org/MPL/
//
// Software distributed under the License is distributed on an "AS IS" basis,
// WITHOUT WARRANTY OF ANY KIND, either express or implied.
// See the License for the specific language governing rights and limitations under the License.
//
// The Original Code is: all this file.
//
// The Initial Developer of the Original Code is Michael H. Kay.
//
// Portions created by (your name) are Copyright (C) (your legal entity). All Rights Reserved.
//
// Contributor(s): none.
//