---

IDOM_TreeWalker.hpp

/*
 * The Apache Software License, Version 1.1
 *
 * Copyright (c) 2001-2002 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) 2001, International
 * Business Machines, Inc., http://www.ibm.com .  For more information
 * on the Apache Software Foundation, please see
 * <http://www.apache.org/>.
 */

/*
 * $Log: IDOM_TreeWalker.hpp,v $
 * Revision 1.1  2002/05/11 20:15:27  bhavani
 * CR#CR062582# adding xercesc 1.7 file
 *
 * Revision 1.2  2002/02/04 21:20:59  tng
 * Add DOM 2 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 22:21:56  peiyongz
 * sane_include
 *
 * Revision 1.3  2001/06/04 20:11:53  tng
 * IDOM: Complete IDNodeIterator, IDTreeWalker, IDNodeFilter.
 *
 * Revision 1.2  2001/05/11 13:25:56  tng
 * Copyright update.
 *
 * Revision 1.1.1.1  2001/04/03 00:14:33  andyh
 * IDOM
 *
 */

#ifndef IDOM_TreeWalker_HEADER_GUARD_
#define IDOM_TreeWalker_HEADER_GUARD_

#include "IDOM_Node.hpp"
#include "IDOM_NodeFilter.hpp"


class CDOM_EXPORT IDOM_TreeWalker {
    protected:
        IDOM_TreeWalker() {};
        IDOM_TreeWalker(const IDOM_TreeWalker &other) {};
        IDOM_TreeWalker & operator = (const IDOM_TreeWalker &other) {return *this;};

    public:
        virtual IDOM_Node*          getRoot() = 0;
        virtual unsigned long           getWhatToShow()= 0;

        virtual IDOM_NodeFilter*                getFilter()= 0;

        virtual bool getExpandEntityReferences()= 0;

        virtual IDOM_Node*              getCurrentNode()= 0;

        virtual IDOM_Node*              parentNode()= 0;

        virtual IDOM_Node*              firstChild()= 0;

        virtual IDOM_Node*              lastChild()= 0;

        virtual IDOM_Node*              previousSibling()= 0;

        virtual IDOM_Node*              nextSibling()= 0;

        virtual IDOM_Node*              previousNode()= 0;

        virtual IDOM_Node*              nextNode()= 0;

        virtual void                    setCurrentNode(IDOM_Node* currentNode)= 0;
};

#endif

---