KDE 4.2 PyKDE API Reference

- KDE's Python API

# Ontology Class Reference

`from PyKDE4.nepomuk import *`

Inherits: Nepomuk.Types.Entity
Namespace: Nepomuk::Types

## Detailed Description

\class Ontology ontology.h Nepomuk/Types/Ontology

Represents one ontology.

Author:
  Sebastian Trueg <trueg@kde.org>

## Methods

| __init__ (self)
| __init__ (self, QUrl uri)
| __init__ (self, Nepomuk.Types.Ontology a0)
[Nepomuk.Types.Class] | allClasses (self)
[Nepomuk.Types.Property] | allProperties (self)
Nepomuk.Types.Class | findClassByLabel (self, QString label, QString language=QString())
Nepomuk.Types.Class | findClassByName (self, QString name)
Nepomuk.Types.Property | findPropertyByLabel (self, QString label, QString language=QString())
Nepomuk.Types.Property | findPropertyByName (self, QString name)

## Method Documentation

__init__ | ( |  | self ) |

Default constructor. Creates an empty Ontology.

__init__ | ( | self, |
|  | QUrl | uri
| ) |  |  |

Create the ontology referred to by uri. The result is either a valid ontology which could be loaded from the Nepomuk store or a simple class which only contains the uri.

Be aware that the data is only loaded once read.

Subsequent calls result in a simple hash lookup of cached data.

__init__ | ( | self, |
|  | Nepomuk.Types.Ontology | a0
| ) |  |  |

Default copy constructor

[Nepomuk.Types.Class] allClasses | ( |  | self ) |

All classes defined in this ontology, i.e. its namespace.

[Nepomuk.Types.Property] allProperties | ( |  | self ) |

A list of all properties defined in this ontology. This does not include properties that use classes of this ontology but are defined in a different one.

Nepomuk.Types.Class findClassByLabel | ( | self, |
|  | QString | label,
|  | QString | language=QString()
| ) |  |  |

Search for a class in the ontology by its label.

Parameters:

  | label | The label of the class (i.e. rdfs:label)

Parameters:

  | language | The language in which the label was specified. If empty the default rdfs:label is returned.

Returns:
  the Class object identified by label or an invalid one if the class could not be found.

Nepomuk.Types.Class findClassByName | ( | self, |
|  | QString | name
| ) |  |  |

Search for a class in the ontology by its name.

Parameters:

  | name | The name of the class.

Returns:
  the Class object identified by name or an invalid one if the class could not be found.

Nepomuk.Types.Property findPropertyByLabel | ( | self, |
|  | QString | label,
|  | QString | language=QString()
| ) |  |  |

Search for a property in the ontology by its label.

Parameters:

  | label | The label of the property (i.e. rdfs:label)

Parameters:

  | language | The language in which the label was specified. If empty the default rdfs:label is returned.

Returns:
  the Property object identified by label or an invalid one if the property could not be found.

Nepomuk.Types.Property findPropertyByName | ( | self, |
|  | QString | name
| ) |  |  |

Search for a property in the ontology by its name.

Parameters:

  | name | The name of the property.

Returns:
  the Property object identified by name or an invalid one if the property could not be found.