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syndication/rdf

Syndication::RDF::Node

Syndication::RDF::Node Class Reference

an RDF node, abstract baseclass for all RDF node types, like resources and literals More...

#include <node.h>

Inheritance diagram for Syndication::RDF::Node:

Inheritance graph
[legend]

List of all members.


Public Member Functions

virtual void accept (NodeVisitor *visitor, NodePtr ptr)
virtual Node * clone () const =0
virtual unsigned int id () const =0
virtual bool isAnon () const =0
virtual bool isLiteral () const =0
virtual bool isNull () const =0
virtual bool isProperty () const =0
virtual bool isResource () const =0
virtual bool isSequence () const =0
virtual bool operator== (const Node &other) const =0
virtual void setId (unsigned int id)=0
virtual void setModel (const Model &model)=0
virtual QString text () const =0
virtual ~Node ()

Static Protected Attributes

static unsigned int idCounter = 1

Detailed Description

an RDF node, abstract baseclass for all RDF node types, like resources and literals

Definition at line 42 of file node.h.


Constructor & Destructor Documentation

Syndication::RDF::Node::~Node (  )  [virtual]

destructor

Definition at line 36 of file node.cpp.


Member Function Documentation

void Syndication::RDF::Node::accept ( NodeVisitor *  visitor,
NodePtr  ptr 
) [virtual]

Used by visitors for double dispatch.

See NodeVisitor for more information.

Parameters:
visitor the visitor calling the method
ptr a shared pointer object for this node

Reimplemented in Syndication::RDF::Literal, Syndication::RDF::Property, Syndication::RDF::Resource, and Syndication::RDF::Sequence.

Definition at line 31 of file node.cpp.

virtual Node* Syndication::RDF::Node::clone (  )  const [pure virtual]

returns a copy of the object.

Must be implemented by subclasses to return a copy using the concrete type

Implemented in Syndication::RDF::Literal, Syndication::RDF::Property, Syndication::RDF::Resource, and Syndication::RDF::Sequence.

virtual unsigned int Syndication::RDF::Node::id (  )  const [pure virtual]

the identifier of this node.

the ID is unique per model and set by the associated model at creation time.

Implemented in Syndication::RDF::Literal, and Syndication::RDF::Resource.

virtual bool Syndication::RDF::Node::isAnon (  )  const [pure virtual]

returns whether this node is an anonymous resource

Implemented in Syndication::RDF::Literal, and Syndication::RDF::Resource.

virtual bool Syndication::RDF::Node::isLiteral (  )  const [pure virtual]

returns whether this node is a literal

Implemented in Syndication::RDF::Literal, and Syndication::RDF::Resource.

virtual bool Syndication::RDF::Node::isNull (  )  const [pure virtual]

returns whether this node is a null node

Implemented in Syndication::RDF::Literal, and Syndication::RDF::Resource.

virtual bool Syndication::RDF::Node::isProperty (  )  const [pure virtual]

returns whether this node is a property

Implemented in Syndication::RDF::Literal, Syndication::RDF::Property, and Syndication::RDF::Resource.

virtual bool Syndication::RDF::Node::isResource (  )  const [pure virtual]

returns whether this node is a resource

Implemented in Syndication::RDF::Literal, and Syndication::RDF::Resource.

virtual bool Syndication::RDF::Node::isSequence (  )  const [pure virtual]

returns whether this node is an RDF sequence

Implemented in Syndication::RDF::Literal, Syndication::RDF::Resource, and Syndication::RDF::Sequence.

virtual bool Syndication::RDF::Node::operator== ( const Node &  other  )  const [pure virtual]

checks whether two nodes are equal.

The meaning of equality is defined per subclass (e.g. equality of URIs, IDs etc.)

Parameters:
other the node to compare to

Implemented in Syndication::RDF::Literal, and Syndication::RDF::Resource.

virtual void Syndication::RDF::Node::setId ( unsigned int  id  )  [pure virtual]

used in Model

For internal use only.

Implemented in Syndication::RDF::Literal, and Syndication::RDF::Resource.

virtual void Syndication::RDF::Node::setModel ( const Model &  model  )  [pure virtual]

used in Model

For internal use only.

Implemented in Syndication::RDF::Literal, and Syndication::RDF::Resource.

virtual QString Syndication::RDF::Node::text (  )  const [pure virtual]

returns a textual representation of the node.

This is the literal string for literals, and a null string for other node types.

Implemented in Syndication::RDF::Literal, and Syndication::RDF::Resource.


Member Data Documentation

unsigned int Syndication::RDF::Node::idCounter = 1 [static, protected]

used to generate unique IDs for node objects

Definition at line 134 of file node.h.


The documentation for this class was generated from the following files:
  • node.h
  • node.cpp

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