/usr/include/syndication/rdf/node.h is in kdepimlibs5-dev 4:4.13.0-0ubuntu1.
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 | /*
* This file is part of the syndication library
*
* Copyright (C) 2006 Frank Osterfeld <osterfeld@kde.org>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public License
* along with this library; see the file COPYING.LIB. If not, write to
* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301, USA.
*
*/
#ifndef SYNDICATION_RDF_NODE_H
#define SYNDICATION_RDF_NODE_H
#include <QtCore/QString>
#include <syndication/ksyndication_export.h>
#include <boost/shared_ptr.hpp>
namespace Syndication {
namespace RDF {
class Model;
class Node;
class NodeVisitor;
//@cond PRIVATE
typedef boost::shared_ptr<Node> NodePtr;
//@endcond
/**
* an RDF node, abstract baseclass for all RDF node types, like resources and
* literals
*/
class SYNDICATION_EXPORT Node
{
public:
/**
* destructor
*/
virtual ~Node();
/**
* Used by visitors for double dispatch. See NodeVisitor
* for more information.
* @param visitor the visitor calling the method
* @param ptr a shared pointer object for this node
*/
virtual void accept(NodeVisitor* visitor, NodePtr ptr);
/**
* checks whether two nodes are equal. The meaning of equality
* is defined per subclass (e.g. equality of URIs, IDs etc.)
*
* @param other the node to compare to
*/
virtual bool operator==(const Node& other) const = 0;
/**
* returns a copy of the object. Must be implemented
* by subclasses to return a copy using the concrete
* type
*/
virtual Node* clone() const = 0;
/**
* returns whether this node is a null node
*/
virtual bool isNull() const = 0;
/**
* returns whether this node is a resource
*/
virtual bool isResource() const = 0;
/**
* returns whether this node is a property
*/
virtual bool isProperty() const = 0;
/**
* returns whether this node is a literal
*/
virtual bool isLiteral() const = 0;
/**
* returns whether this node is an RDF sequence
*/
virtual bool isSequence() const = 0;
/**
* returns whether this node is an anonymous resource
*/
virtual bool isAnon() const = 0;
/**
* the identifier of this node. the ID is unique per model
* and set by the associated model at creation time.
*/
virtual unsigned int id() const = 0;
/**
* returns a textual representation of the node.
* This is the literal string for literals, and a null string for other
* node types.
*/
virtual QString text() const = 0;
/**
* used in Model
* @internal
*/
virtual void setModel(const Model& model) = 0;
/**
* used in Model
* @internal
*/
virtual void setId(unsigned int id) = 0;
protected:
/**
* used to generate unique IDs for node objects
*/
static unsigned int idCounter;
};
} // namespace RDF
} // namespace Syndication
#endif // SYNDICATION_RDF_NODE_H
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