KDE 4.1 PyKDE API Reference
RdfSchemaModel Class Reference
from PyKDE4.soprano import *
Inherits: Soprano.FilterModel
Namespace: Soprano
Detailed Description
\class RdfSchemaModel rdfschemamodel.h Soprano/RdfSchemaModel
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().
Method Documentation
| __init__ | ( | self, | ||
| Soprano.Model | parentModel=0 | |||
| ) |
Create a new RDF Schema wrapper model that performs actions on model
| Soprano.StatementIterator classes | ( | self ) |
Get all defined RDF/S classes.
- Returns:
- a StatementIterator that iterates over all statements in the model defining an RDF/S class.
| Soprano.StatementIterator directSubClassOf | ( | self, | ||
| Soprano.Node | subClass, | |||
| Soprano.Node | superClass=Soprano.Node() | |||
| ) |
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.
- Parameters:
-
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).
| Soprano.StatementIterator directSubPropertyOf | ( | self, | ||
| Soprano.Node | subProperty, | |||
| Soprano.Node | superProperty=Soprano.Node() | |||
| ) |
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.
- Parameters:
-
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).
| Soprano.StatementIterator directType | ( | self, | ||
| Soprano.Node | someClass, | |||
| Soprano.Node | someType | |||
| ) |
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.
- Parameters:
-
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).
| Soprano.StatementIterator domain | ( | self, | ||
| Soprano.Node | prop, | |||
| Soprano.Node | domain | |||
| ) |
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.
- Parameters:
-
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).
| bool isClass | ( | self, | ||
| Soprano.Node | resource | |||
| ) |
Checks whether the supplied resource represents a class.
- Parameters:
-
resource The resource to check.
- Returns:
- true if resource is a class, false otherwise.
| bool isDirectSubClassOf | ( | self, | ||
| Soprano.Node | subClass, | |||
| Soprano.Node | superClass | |||
| ) |
Checks whether one resource is a direct subclass of another.
- Parameters:
-
subClass A class.
- Parameters:
-
superClass A class.
- Returns:
- true if subClass is a direct subclass of superClass, false otherwise.
| bool isDirectSubPropertyOf | ( | self, | ||
| Soprano.Node | subProperty, | |||
| Soprano.Node | superProperty | |||
| ) |
Checks whether one resource is a direct subproperty of another.
- Parameters:
-
subProperty A property.
- Parameters:
-
superProperty A property.
- Returns:
- true if subProperty is a direct subproperty of superProperty, false otherwise.
| bool isDirectType | ( | self, | ||
| Soprano.Node | someClass, | |||
| Soprano.Node | someType | |||
| ) |
Checks whether one resource is a direct instance of another.
- Parameters:
-
someClass An instance.
- Parameters:
-
someType A class.
- Returns:
- true if someClass is a direct instance of someType, false otherwise.
| bool isProperty | ( | self, | ||
| Soprano.Node | resource | |||
| ) |
Checks whether the supplied resource represents a property.
- Parameters:
-
resource The resource to check.
- Returns:
- true if resource is a property, false otherwise.
| bool isSubClassOf | ( | self, | ||
| Soprano.Node | subClass, | |||
| Soprano.Node | superClass | |||
| ) |
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.
- Parameters:
-
superClass A class.
- Returns:
- true if subClass is a subclass of superClass, false otherwise.
| bool isSubPropertyOf | ( | self, | ||
| Soprano.Node | subProperty, | |||
| Soprano.Node | superProperty | |||
| ) |
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.
- Parameters:
-
superProperty A property.
- Returns:
- true if subProperty is a subproperty of superProperty, false otherwise.
| bool isType | ( | self, | ||
| Soprano.Node | someClass, | |||
| Soprano.Node | someType | |||
| ) |
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.
- Parameters:
-
someType A class.
- Returns:
- true if someClass is an instance of someType, false otherwise.
| Soprano.StatementIterator properties | ( | self ) |
Gets all defined properties.
- Returns:
- A StatementIterator containing statements of the form (someProperty, rdf:type, rdf:Property).
| Soprano.StatementIterator range | ( | self, | ||
| Soprano.Node | prop, | |||
| Soprano.Node | range | |||
| ) |
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.
- Parameters:
-
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).
| Soprano.StatementIterator subClassOf | ( | self, | ||
| Soprano.Node | subClass, | |||
| Soprano.Node | superClass=Soprano.Node() | |||
| ) |
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.
- Parameters:
-
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.
| Soprano.StatementIterator subPropertyOf | ( | self, | ||
| Soprano.Node | subProperty, | |||
| Soprano.Node | superProperty=Soprano.Node() | |||
| ) |
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.
- Parameters:
-
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.
| Soprano.StatementIterator type | ( | self, | ||
| Soprano.Node | someClass, | |||
| Soprano.Node | someType | |||
| ) |
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.
- Parameters:
-
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.
