content: /*
   *  This file is part of AndroidIDE.
   *
   *  AndroidIDE is free software: you can redistribute it and/or modify
   *  it under the terms of the GNU General Public License as published by
   *  the Free Software Foundation, either version 3 of the License, or
   *  (at your option) any later version.
   *
   *  AndroidIDE is distributed in the hope that it will be useful,
   *  but WITHOUT ANY WARRANTY; without even the implied warranty of
   *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   *  GNU General Public License for more details.
   *
   *  You should have received a copy of the GNU General Public License
   *   along with AndroidIDE.  If not, see <https://www.gnu.org/licenses/>.
   */
  
  /*
   * reserved comment block
   * DO NOT REMOVE OR ALTER!
   */
  /*
   * Copyright 2001-2004 The Apache Software Foundation.
   *
   * Licensed under the Apache License, Version 2.0 (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.apache.org/licenses/LICENSE-2.0
   *
   * Unless required by applicable law or agreed to in writing, software
   * distributed under the License is distributed on an "AS IS" BASIS,
   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   * See the License for the specific language governing permissions and
   * limitations under the License.
   */
  /*
   * $Id: SingletonIterator.java,v 1.2.4.1 2005/09/06 10:15:18 pvedula Exp $
   */
  
  package jaxp.sun.org.apache.xalan.internal.xsltc.dom;
  
  import jaxp.sun.org.apache.xml.internal.dtm.DTMAxisIterator;
  import jaxp.sun.org.apache.xml.internal.dtm.ref.DTMAxisIteratorBase;
  
  /**
   * @author Jacek Ambroziak
   * @author Santiago Pericas-Geertsen
   */
  public class SingletonIterator extends DTMAxisIteratorBase {
      private int _node;
      private final boolean _isConstant;
  
      public SingletonIterator() {
          this(Integer.MIN_VALUE, false);
      }
  
      public SingletonIterator(int node) {
          this(node, false);
      }
  
      public SingletonIterator(int node, boolean constant) {
          _node = _startNode = node;
          _isConstant = constant;
      }
  
      /**
       * Override the value of <tt>_node</tt> only when this
       * object was constructed using the empty constructor.
       */
      public DTMAxisIterator setStartNode(int node) {
          if (_isConstant) {
              _node = _startNode;
              return resetPosition();
          }
          else if (_isRestartable) {
              if (_node <= 0)
                  _node = _startNode = node;
              return resetPosition();
          }
          return this;
      }
  
      public DTMAxisIterator reset() {
          if (_isConstant) {
              _node = _startNode;
              return resetPosition();
          }
          else {
              final boolean temp = _isRestartable;
              _isRestartable = true;
              setStartNode(_startNode);
              _isRestartable = temp;
          }
          return this;
      }
  
      public int next() {
          final int result = _node;
          _node = DTMAxisIterator.END;
          return returnNode(result);
      }
  
      public void setMark() {
          _markedNode = _node;
      }
  
      public void gotoMark() {
          _node = _markedNode;
      }
  }
  