File indexing completed on 2024-04-21 04:01:02

 /*
     This file is part of the syndication library
     SPDX-FileCopyrightText: 2006 Frank Osterfeld <osterfeld@kde.org>
 
     SPDX-License-Identifier: LGPL-2.0-or-later
 */
 
 #ifndef SYNDICATION_RDF_LITERAL_H
 #define SYNDICATION_RDF_LITERAL_H
 
 #include <QString>
 #include <syndication/rdf/node.h>
 
 namespace Syndication
 {
 namespace RDF
 {
 class Literal;
 
 //@cond PRIVATE
 typedef QSharedPointer<Literal> LiteralPtr;
 //@endcond
 
 /**
  * a node type representing simple string values. Literals can
  * be object of statement, but neither subject nor predicate.
  */
 class Literal : public Node
 {
 public:
     /**
      * creates a null literal. text() will return a null string.
      */
     Literal();
 
     /**
      * copies a literal node
      *
      * @param other the literal node to copy
      */
     Literal(const Literal &other);
 
     /**
      * creates a new literal node with a given text
      *
      * @param text the literal string
      */
     explicit Literal(const QString &text);
 
     /**
      * destructor
      */
     ~Literal() override;
 
     /**
      * assigns another literal
      *
      * @param other the literal to assign
      */
     virtual Literal &operator=(const Literal &other);
 
     /**
      * two literal nodes are equal iff their text _and_ ID's
      * are equal.
      */
     bool operator==(const Literal &other) const;
 
     /**
      * clones the literal node.
      */
     Literal *clone() const override;
 
     /**
      * 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
      */
     void accept(NodeVisitor *visitor, NodePtr ptr) override;
 
     /**
      * returns whether this node is a null node
      */
     bool isNull() const override;
 
     /**
      * the identifier of this node. the ID is unique per model
      * and set by the associated model at creation time.
      */
     unsigned int id() const override;
 
     /**
      * returns false, as a literal is not a resource
      */
     bool isResource() const override;
     /**
      * returns false, as a literal is not a property
      */
     bool isProperty() const override;
 
     /**
      * returns true for literals
      */
     bool isLiteral() const override;
 
     /**
      * returns false, literals are not anonymous resources
      */
     bool isAnon() const override;
 
     /**
      * returns false, literals are not sequences
      */
     bool isSequence() const override;
 
     /**
      * implicit conversion to string. returns text()
      */
     virtual operator QString() const;
 
     /**
      * the string value of the literal
      */
     QString text() const override;
 
     /**
      * used in Model
      * @internal
      */
     void setModel(const Model &model) override;
 
     /**
      * used in Model
      * @internal
      */
     void setId(unsigned int id) override;
 
 private:
     class LiteralPrivate;
     typedef QSharedPointer<LiteralPrivate> LiteralPrivatePtr;
     LiteralPrivatePtr d;
 };
 
 } // namespace RDF
 } // namespace Syndication
 
 #endif // SYNDICATION_RDF_LITERAL_H