---

DOM_TreeWalker.hpp

/*
 * The Apache Software License, Version 1.1
 *
 * Copyright (c) 1999-2002 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 "Xerces" 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) 1999, International
 * Business Machines, Inc., http://www.ibm.com .  For more information
 * on the Apache Software Foundation, please see
 * <http://www.apache.org/>.
 */

/*
 * $Log: DOM_TreeWalker.hpp,v $
 * Revision 1.1  2002/05/11 19:53:01  bhavani
 * CR#CR062582# adding xercesc 1.7 file
 *
 * Revision 1.3  2002/02/20 18:17:00  tng
 * [Bug 5977] Warnings on generating apiDocs.
 *
 * Revision 1.2  2002/02/04 20:03:48  tng
 * Add DOM Level missing functions:
 * 1. NodeIterator::getRoot
 * 2. TreeWalker::getRoot
 * 3. Element::hasAttribute
 * 4. Element::hasAttributeNS
 * 5. Node::hasAttributes
 * 6. Node::isSupported
 *
 * Revision 1.1.1.1  2002/02/01 22:21:46  peiyongz
 * sane_include
 *
 * Revision 1.9  2000/08/08 01:00:36  aruna1
 * detach functionality removed from TreeWalker
 *
 * Revision 1.8  2000/02/24 20:11:29  abagchi
 * Swat for removing Log from API docs
 *
 * Revision 1.7  2000/02/17 17:47:25  andyh
 * Update Doc++ API comments
 * NameSpace update to track W3C
 * Changes were made by Chih Hsiang Chou
 *
 * Revision 1.6  2000/02/15 23:17:37  andyh
 * Update Doc++ API comments
 * NameSpace bugfix and update to track W3C
 * Chih Hsiang Chou
 *
 * Revision 1.5  2000/02/11 03:01:04  abagchi
 * Made protected method public to compile, must be fixed later
 *
 * Revision 1.4  2000/02/11 01:05:11  abagchi
 * Added API docs
 *
 * Revision 1.3  2000/02/06 07:47:31  rahulj
 * Year 2K copyright swat.
 *
 * Revision 1.2  2000/02/04 01:49:27  aruna1
 * TreeWalker and NodeIterator changes
 *
 * Revision 1.1.1.1  1999/11/09 01:09:05  twl
 * Initial checkin
 *
 * Revision 1.3  1999/11/08 20:44:22  rahul
 * Swat for adding in Product name and CVS comment log variable.
 *
 */

#ifndef DOM_TreeWalker_HEADER_GUARD_
#define DOM_TreeWalker_HEADER_GUARD_

#include "DOM_Node.hpp"
#include "DOM_NodeFilter.hpp"

class TreeWalkerImpl;


class CDOM_EXPORT DOM_TreeWalker {
    public:
        DOM_TreeWalker();

        DOM_TreeWalker(const DOM_TreeWalker &other);

        DOM_TreeWalker & operator = (const DOM_TreeWalker &other);

        DOM_TreeWalker & operator = (const DOM_NullPtr *val);

        ~DOM_TreeWalker();

        bool operator == (const DOM_TreeWalker & other)const;

        bool operator == (const DOM_NullPtr *other) const;

        bool operator != (const DOM_TreeWalker & other) const;

        bool operator != (const DOM_NullPtr * other) const;

        DOM_Node          getRoot();

        unsigned long           getWhatToShow();

        DOM_NodeFilter*         getFilter();

        bool getExpandEntityReferences();

        DOM_Node                getCurrentNode();

        DOM_Node                parentNode();

        DOM_Node                firstChild();

        DOM_Node                lastChild();

        DOM_Node                previousSibling();

        DOM_Node                nextSibling();

        DOM_Node                previousNode();

        DOM_Node                nextNode();

        void                    setCurrentNode(DOM_Node currentNode);


    protected:
        DOM_TreeWalker(TreeWalkerImpl* impl);

        friend class DOM_Document;

    private:
        TreeWalkerImpl*         fImpl;
};

#endif

---