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TreeWalker.hpp

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00001 /*
00002  * The Apache Software License, Version 1.1
00003  *
00004  *
00005  * Copyright (c) 1999-2004 The Apache Software Foundation.  All rights 
00006  * reserved.
00007  *
00008  * Redistribution and use in source and binary forms, with or without
00009  * modification, are permitted provided that the following conditions
00010  * are met:
00011  *
00012  * 1. Redistributions of source code must retain the above copyright
00013  *    notice, this list of conditions and the following disclaimer. 
00014  *
00015  * 2. Redistributions in binary form must reproduce the above copyright
00016  *    notice, this list of conditions and the following disclaimer in
00017  *    the documentation and/or other materials provided with the
00018  *    distribution.
00019  *
00020  * 3. The end-user documentation included with the redistribution,
00021  *    if any, must include the following acknowledgment:  
00022  *       "This product includes software developed by the
00023  *        Apache Software Foundation (http://www.apache.org/)."
00024  *    Alternately, this acknowledgment may appear in the software itself,
00025  *    if and wherever such third-party acknowledgments normally appear.
00026  *
00027  * 4. The names "Xalan" and "Apache Software Foundation" must
00028  *    not be used to endorse or promote products derived from this
00029  *    software without prior written permission. For written 
00030  *    permission, please contact apache@apache.org.
00031  *
00032  * 5. Products derived from this software may not be called "Apache",
00033  *    nor may "Apache" appear in their name, without prior written
00034  *    permission of the Apache Software Foundation.
00035  *
00036  * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
00037  * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
00038  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
00039  * DISCLAIMED.  IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
00040  * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
00041  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
00042  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
00043  * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
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00045  * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
00046  * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
00047  * SUCH DAMAGE.
00048  * ====================================================================
00049  *
00050  * This software consists of voluntary contributions made by many
00051  * individuals on behalf of the Apache Software Foundation and was
00052  * originally based on software copyright (c) 1999, International
00053  * Business Machines, Inc., http://www.ibm.com.  For more
00054  * information on the Apache Software Foundation, please see
00055  * <http://www.apache.org/>.
00056  */
00057 #if !defined(TREEWALKER_HEADER_GUARD_1357924680)
00058 #define TREEWALKER_HEADER_GUARD_1357924680
00059 
00060 
00061 
00062 // Base include file.  Must be first.
00063 #include <xalanc/DOMSupport/DOMSupportDefinitions.hpp>
00064 
00065 
00066 
00067 XALAN_CPP_NAMESPACE_BEGIN
00068 
00069 
00070 
00071 class XalanNode;
00072 
00073 
00074 
00075 class XALAN_DOMSUPPORT_EXPORT TreeWalker
00076 {
00077 public:
00078 
00082     TreeWalker();
00083 
00084     virtual
00085     ~TreeWalker();
00086 
00102     const XalanNode*
00103     traverse(const XalanNode*   pos);
00104 
00120     XalanNode*
00121     traverse(XalanNode*     pos);
00122 
00140     const XalanNode*
00141     traverse(
00142             const XalanNode*    pos,
00143             const XalanNode*    parent);
00144 
00162     XalanNode*
00163     traverse(
00164             XalanNode*  pos,
00165             XalanNode*  parent);
00166 
00172     virtual void
00173     traverseSubtree(const XalanNode*    pos);
00174 
00180     virtual void
00181     traverseSubtree(XalanNode*  pos);
00182 
00183 protected:
00184 
00192     virtual bool
00193     startNode(const XalanNode*  node) = 0;
00194 
00202     virtual bool
00203     startNode(XalanNode*    node) = 0;
00204 
00212     virtual bool
00213     endNode(const XalanNode*    node) = 0;
00214 
00222     virtual bool
00223     endNode(XalanNode*  node) = 0;
00224 
00225 private:
00226 };
00227 
00228 
00229 
00230 XALAN_CPP_NAMESPACE_END
00231 
00232 
00233 
00234 #endif  // TREEWALKER_HEADER_GUARD_1357924680

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Copyright © 1999-2004 The Apache Software Foundation. All Rights Reserved.