Soprano::RdfSchemaModel Class Reference

Provides convenience methods to handle RDFS data. More...

#include <Soprano/RdfSchemaModel>

Inheritance diagram for Soprano::RdfSchemaModel:

[legend]

List of all members.

Public Member Functions
	RdfSchemaModel (Model *parentModel=0)
	~RdfSchemaModel ()
StatementIterator	classes () const
StatementIterator	directSubClassOf (const Node &subClass, const Node &superClass=Node()) const
StatementIterator	directSubPropertyOf (const Node &subProperty, const Node &superProperty=Node()) const
StatementIterator	directType (const Node &someClass, const Node &someType) const
StatementIterator	domain (const Node &prop, const Node &domain) const
StatementIterator	properties () const
StatementIterator	range (const Node &prop, const Node &range) const
StatementIterator	subClassOf (const Node &subClass, const Node &superClass=Node()) const
StatementIterator	subPropertyOf (const Node &subProperty, const Node &superProperty=Node()) const
StatementIterator	type (const Node &someClass, const Node &someType) const
bool	isClass (const Node &resource) const
bool	isProperty (const Node &resource) const
bool	isDirectSubClassOf (const Node &subClass, const Node &superClass) const
bool	isDirectSubPropertyOf (const Node &subProperty, const Node &superProperty) const
bool	isDirectType (const Node &someClass, const Node &someType) const
bool	isSubClassOf (const Node &subClass, const Node &superClass) const
bool	isSubPropertyOf (const Node &subProperty, const Node &superProperty) const
bool	isType (const Node &someClass, const Node &someType) const

---

Detailed Description

Provides convenience methods to handle RDFS data.

Interface based on Sesame's RdfSchemaSource. (Copyright (C) 2002-2006 Aduna BV, GNU LGPL License applies.)

Warning:

Backward inferencing has not been implemented yet. Thus, methods like subClassOf() return the same as directSubClassOf().

Author:

Sebastian Trueg <trueg@kde.org>

Definition at line 46 of file rdfschemamodel.h.

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Constructor & Destructor Documentation

Soprano::RdfSchemaModel::RdfSchemaModel

(

Model *

parentModel = 0

)

Create a new RDF Schema wrapper model that performs actions on model

Soprano::RdfSchemaModel::~RdfSchemaModel

(

)

Destructor.

---

Member Function Documentation

StatementIterator Soprano::RdfSchemaModel::classes

(

)

const

Get all defined RDF/S classes.

Returns:

a StatementIterator that iterates over all statements in the model defining an RDF/S class.

StatementIterator Soprano::RdfSchemaModel::directSubClassOf	(	const Node &	subClass,
		const Node &	superClass = Node()
	)			const

Gets all direct subClassOf relations with a specific sub- and/or superclass. A class A is a direct subclass of class B if there is no class C such that A is a subclass of C and C is a subclass of B.

Parameters:

	subClass	The subclass of the relations that should be returned, or an empty node if relations with any subclass should be returned.
	superClass	The superclass of the relations that should be returned, or an empty node if relations with any superclass should be returned.

Returns:

A StatementIterator containing statements of the form (subClass, rdfs:subClassOf, superClass).

StatementIterator Soprano::RdfSchemaModel::directSubPropertyOf	(	const Node &	subProperty,
		const Node &	superProperty = Node()
	)			const

Gets all direct subPropertyOf relations with a specific sub- and/or superproperty. A property A is a direct subproperty of property B if there is no property C such that A is a subproperty of C and C is a subproperty of B.

Parameters:

	subProperty	The subproperty of the relations that should be returned, or an empty node if relations with any subproperty should be returned.
	superProperty	The superproperty of the relations that should be returned, or an empty node if relations with any superproperty should be returned.

Returns:

A StatementIterator containing statements of the form (subProperty, rdfs:subPropertyOf, superProperty).

StatementIterator Soprano::RdfSchemaModel::directType	(	const Node &	someClass,
		const Node &	someType
	)			const

Gets all direct type relations with a specific instance and/or class.

Parameters:

	someClass	The instance of the relations that should be returned, or an empty node if relations with any instance should be returned.
	someType	The class of the relations that should be returned, or an empty node if relations with any class should be returned.

Returns:

A StatementIterator containing statements of the form (someClass, rdf:type, someType).

StatementIterator Soprano::RdfSchemaModel::domain	(	const Node &	prop,
		const Node &	domain
	)			const

Gets all domain relations with a specific property and/or domain class.

Parameters:

	prop	The property of the relations that should be returned, or an empty node if relations with any property should be returned.
	domain	The domain of the relations that should be returned, or an empty node if relations with any domain should be returned.

Returns:

A StatementIterator containing statements of the form (prop, rdfs:domain, domain).

StatementIterator Soprano::RdfSchemaModel::properties

(

)

const

Gets all defined properties.

Returns:

A StatementIterator containing statements of the form (someProperty, rdf:type, rdf:Property).

StatementIterator Soprano::RdfSchemaModel::range	(	const Node &	prop,
		const Node &	range
	)			const

Gets all range relations with a specific property and/or range class.

Parameters:

	prop	The property of the relations that should be returned, or an empty node if relations with any property should be returned.
	range	The range of the relations that should be returned, or an empty node if relations with any range should be returned.

Returns:

A StatementIterator containing statements of the form (prop, rdfs:range, range).

StatementIterator Soprano::RdfSchemaModel::subClassOf	(	const Node &	subClass,
		const Node &	superClass = Node()
	)			const

Gets all subClassOf relations with a specific sub- and/or superclass. Note that the subClassOf relation is reflexive: a class is implicitly always a subclass of itself.

Do not use this method if the Soprano backend supports inferencing. Use directSubClassOf instead which is much faster.

Parameters:

	subClass	The subclass of the relations that should be returned, or an empty node if relations with any subclass should be returned.
	superClass	The superclass of the relations that should be returned, or an emtpy node if relations with any superclass should be returned.

Returns:

A StatementIterator containing all valid statements of the form (subClass, rdfs:subClassOf, superClass) including those calculated through direct inferencing.

StatementIterator Soprano::RdfSchemaModel::subPropertyOf	(	const Node &	subProperty,
		const Node &	superProperty = Node()
	)			const

Gets all subPropertyOf relations with a specific sub- and/or superproperty. Note that the subPropertyOf relation is reflexive: a property is implicitly always a subproperty of itself.

Do not use this method if the Soprano backend supports inferencing. Use directSubPropertyOf instead which is much faster.

Parameters:

	subProperty	The subproperty of the relations that should be returned, or an empty node if relations with any subproperty should be returned.
	superProperty	The superproperty of the relations that should be returned, or an empty node if relations with any superproperty should be returned.

Returns:

A StatementIterator containing all valid statements of the form (subProperty, rdfs:subPropertyOf, superProperty) including those calculated through direct inferencing.

StatementIterator Soprano::RdfSchemaModel::type	(	const Node &	someClass,
		const Node &	someType
	)			const

Gets all type relations with a specific instance and/or class.

Do not use this method if the Soprano backend supports inferencing. Use directType instead which is much faster.

Parameters:

	someClass	The instance of the relations that should be returned, or an empty node if relations with any instance should be returned.
	someType	The class of the relations that should be returned, or an empty node if relations with any class should be returned.

Returns:

A StatementIterator containing all valid statements of the form (someClass, rdf:type, someType) including those calculated through direct inferencing.

bool Soprano::RdfSchemaModel::isClass

(

const Node &

resource

)

const

Checks whether the supplied resource represents a class.

Parameters:

resource

The resource to check.

Returns:

true if resource is a class, false otherwise.

bool Soprano::RdfSchemaModel::isProperty

(

const Node &

resource

)

const

Checks whether the supplied resource represents a property.

Parameters:

resource

The resource to check.

Returns:

true if resource is a property, false otherwise.

bool Soprano::RdfSchemaModel::isDirectSubClassOf	(	const Node &	subClass,
		const Node &	superClass
	)			const

Checks whether one resource is a direct subclass of another.

Parameters:

	subClass	A class.
	superClass	A class.

Returns:

true if subClass is a direct subclass of superClass, false otherwise.

bool Soprano::RdfSchemaModel::isDirectSubPropertyOf	(	const Node &	subProperty,
		const Node &	superProperty
	)			const

Checks whether one resource is a direct subproperty of another.

Parameters:

	subProperty	A property.
	superProperty	A property.

Returns:

true if subProperty is a direct subproperty of superProperty, false otherwise.

bool Soprano::RdfSchemaModel::isDirectType	(	const Node &	someClass,
		const Node &	someType
	)			const

Checks whether one resource is a direct instance of another.

Parameters:

	someClass	An instance.
	someType	A class.

Returns:

true if someClass is a direct instance of someType, false otherwise.

bool Soprano::RdfSchemaModel::isSubClassOf	(	const Node &	subClass,
		const Node &	superClass
	)			const

Checks whether one resource is a subclass of another.

Do not use this method if the Soprano backend supports inferencing. Use isDirectSubClassOf instead which is much faster.

Parameters:

	subClass	A class.
	superClass	A class.

Returns:

true if subClass is a subclass of superClass, false otherwise.

bool Soprano::RdfSchemaModel::isSubPropertyOf	(	const Node &	subProperty,
		const Node &	superProperty
	)			const

Checks whether one resource is a subproperty of another.

Do not use this method if the Soprano backend supports inferencing. Use isDirectSubPropertyOf instead which is much faster.

Parameters:

	subProperty	A property.
	superProperty	A property.

Returns:

true if subProperty is a subproperty of superProperty, false otherwise.

bool Soprano::RdfSchemaModel::isType	(	const Node &	someClass,
		const Node &	someType
	)			const

Checks whether one resource is a instance of another.

Do not use this method if the Soprano backend supports inferencing. Use isDirectType instead which is much faster.

Parameters:

	someClass	An instance.
	someType	A class.

Returns:

true if someClass is an instance of someType, false otherwise.

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The documentation for this class was generated from the following file:

• soprano/rdfschemamodel.h