nodevisitor.h

00001 /*
00002  * This file is part of the syndication library
00003  *
00004  * Copyright (C) 2006 Frank Osterfeld <osterfeld@kde.org>
00005  *
00006  * This library is free software; you can redistribute it and/or
00007  * modify it under the terms of the GNU Library General Public
00008  * License as published by the Free Software Foundation; either
00009  * version 2 of the License, or (at your option) any later version.
00010  *
00011  * This library is distributed in the hope that it will be useful,
00012  * but WITHOUT ANY WARRANTY; without even the implied warranty of
00013  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
00014  * Library General Public License for more details.
00015  *
00016  * You should have received a copy of the GNU Library General Public License
00017  * along with this library; see the file COPYING.LIB.  If not, write to
00018  * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
00019  * Boston, MA 02110-1301, USA.
00020  *
00021  */
00022 #ifndef SYNDICATION_RDF_NODEVISITOR_H
00023 #define SYNDICATION_RDF_NODEVISITOR_H
00024 
00025 #include <syndication/ksyndication_export.h>
00026 
00027 namespace boost {
00028     template <class T> class shared_ptr;
00029 }
00030 
00031 namespace Syndication {
00032 
00033 namespace RDF {
00034 
00035 //@cond PRIVATE
00036 class Literal;
00037 typedef boost::shared_ptr<Literal> LiteralPtr;
00038 class Node;
00039 typedef boost::shared_ptr<Node> NodePtr;
00040 class Property;
00041 typedef boost::shared_ptr<Property> PropertyPtr;
00042 class Resource;
00043 typedef boost::shared_ptr<Resource> ResourcePtr;
00044 class Sequence;
00045 typedef boost::shared_ptr<Sequence> SequencePtr;
00046 //@endcond
00047 
00057 class SYNDICATION_EXPORT NodeVisitor //krazy:exclude=dpointer
00058 {
00059     public:
00060 
00064         virtual ~NodeVisitor();
00065 
00072         virtual void visit(NodePtr node);
00073 
00081         virtual bool visitLiteral(LiteralPtr);
00082 
00091         virtual bool visitNode(NodePtr node);
00092 
00100         virtual bool visitProperty(PropertyPtr property);
00101 
00109         virtual bool visitResource(ResourcePtr resource);
00110 
00118         virtual bool visitSequence(SequencePtr seq);
00119 };
00120 
00121 } // namespace RDF
00122 } // namespace Syndication
00123 
00124 #endif // SYNDICATION_RDF_NODEVISITOR_H
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