/*
* @(#)$Id$
*
* The Apache Software License, Version 1.1
*
*
* Copyright (c) 2001 The Apache Software Foundation. All rights
* reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* 3. The end-user documentation included with the redistribution,
* if any, must include the following acknowledgment:
* "This product includes software developed by the
* Apache Software Foundation (http://www.apache.org/)."
* Alternately, this acknowledgment may appear in the software itself,
* if and wherever such third-party acknowledgments normally appear.
*
* 4. The names "Xalan" and "Apache Software Foundation" must
* not be used to endorse or promote products derived from this
* software without prior written permission. For written
* permission, please contact apache@apache.org.
*
* 5. Products derived from this software may not be called "Apache",
* nor may "Apache" appear in their name, without prior written
* permission of the Apache Software Foundation.
*
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
* ====================================================================
*
* This software consists of voluntary contributions made by many
* individuals on behalf of the Apache Software Foundation and was
* originally based on software copyright (c) 2001, Sun
* Microsystems., http://www.sun.com. For more
* information on the Apache Software Foundation, please see
* <http://www.apache.org/>.
*
* @author Jacek Ambroziak
* @author Santiago Pericas-Geertsen
*
*/
package org.apache.xalan.xsltc.dom;
import org.apache.xalan.xsltc.NodeIterator;
import org.apache.xalan.xsltc.runtime.BasisLibrary;
public abstract class NodeIteratorBase implements NodeIterator {
private int _last = -1;
private int _position = 0;
protected int _markedNode;
protected int _startNode = NodeIterator.END;
protected boolean _includeSelf = false;
protected boolean _isRestartable = true;
public NodeIterator reset() {
final boolean temp = _isRestartable;
_isRestartable = true;
setStartNode(_startNode);
_isRestartable = temp;
return this;
}
public NodeIterator includeSelf() {
_includeSelf = true;
return this;
}
public int getLast() {
if (_last == -1) {
final int temp = _position;
setMark();
reset();
do {
_last++;
} while (next() != END);
gotoMark();
_position = temp;
}
return _last;
}
public int getPosition() {
return _position == 0 ? 1 : _position;
}
public boolean isReverse() {
return false;
}
public NodeIterator cloneIterator() {
try {
final NodeIteratorBase clone = (NodeIteratorBase)super.clone();
clone._isRestartable = false;
return clone.reset();
}
catch (CloneNotSupportedException e) {
BasisLibrary.runTimeError("Iterator clone not supported.");
return null;
}
}
protected final int returnNode(final int node) {
_position++;
return node;
}
protected final NodeIterator resetPosition() {
_position = 0;
return this;
}
}