| 1 | /* |
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| 2 | This file is part of the syndication library |
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| 3 | SPDX-FileCopyrightText: 2006 Frank Osterfeld <osterfeld@kde.org> |
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| 4 | |
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| 5 | SPDX-License-Identifier: LGPL-2.0-or-later |
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| 6 | */ |
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| 7 | |
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| 8 | #ifndef SYNDICATION_RDF_PROPERTY_H |
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| 9 | #define SYNDICATION_RDF_PROPERTY_H |
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| 10 | |
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| 11 | #include <syndication/rdf/resource.h> |
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| 12 | |
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| 13 | class QString; |
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| 14 | |
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| 15 | namespace Syndication |
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| 16 | { |
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| 17 | namespace RDF |
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| 18 | { |
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| 19 | //@cond PRIVATE |
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| 20 | class Property; |
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| 21 | typedef QSharedPointer<Property> PropertyPtr; |
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| 22 | //@endcond |
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| 23 | |
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| 24 | /** |
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| 25 | * a property is node type that represents properties of things, |
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| 26 | * like "name" is a property of a person, or "color" is a property of e.g. |
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| 27 | * a car. Properties can be used as predicates in statements. |
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| 28 | * |
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| 29 | * @author Frank Osterfeld |
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| 30 | */ |
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| 31 | class Property : public Resource |
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| 32 | { |
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| 33 | public: |
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| 34 | /** |
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| 35 | * creates a null property |
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| 36 | */ |
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| 37 | Property(); |
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| 38 | |
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| 39 | /** |
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| 40 | * creates a property with a given URI |
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| 41 | * |
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| 42 | * @param uri the URI of the property |
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| 43 | */ |
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| 44 | explicit Property(const QString &uri); |
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| 45 | |
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| 46 | /** |
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| 47 | * destructor |
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| 48 | */ |
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| 49 | ~Property() override; |
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| 50 | |
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| 51 | /** |
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| 52 | * Used by visitors for double dispatch. See NodeVisitor |
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| 53 | * for more information. |
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| 54 | * @param visitor the visitor calling the method |
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| 55 | * @param ptr a shared pointer object for this node |
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| 56 | */ |
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| 57 | void accept(NodeVisitor *visitor, NodePtr ptr) override; |
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| 58 | |
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| 59 | /** |
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| 60 | * returns true for properties |
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| 61 | */ |
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| 62 | bool isProperty() const override; |
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| 63 | |
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| 64 | /** |
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| 65 | * creates a copy of the property object |
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| 66 | */ |
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| 67 | Property *clone() const override; |
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| 68 | }; |
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| 69 | |
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| 70 | } // namespace RDF |
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| 71 | } // namespace Syndication |
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| 72 | |
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| 73 | #endif // SYNDICATION_RDF_PROPERTY_H |
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| 74 | |
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