Nepomuk
#include <ontologymanager.h>
Public Member Functions | |
~OntologyManager () | |
const Ontology * | getOntology (const QUrl &uri) |
void | setOntologyLoader (OntologyLoader *loader) |
Static Public Member Functions | |
static OntologyManager * | instance () |
Detailed Description
The OntologyManager is the central ontology cache handler.
It is modeled as a singleton and its instance can be accessed through OntologyManager::instance.
- Deprecated:
- Ontologies should be handled via the classes in Nepomuk::Types.
Definition at line 44 of file ontologymanager.h.
Constructor & Destructor Documentation
Nepomuk::OntologyManager::~OntologyManager | ( | ) |
Member Function Documentation
const Ontology* Nepomuk::OntologyManager::getOntology | ( | const QUrl & | uri | ) |
Attempt to load the ontology referenced by uri.
If the manager already has the ontology in the cache it is simply returned. Otherwise the manager tries to load the ontology from one of the configured OntologyLoader instances.
- Returns
- The requested ontology or 0 in case it could not be found, i.e. none of the OntologyLoader instances could provide the RDF statements making up the ontology.
|
static |
void Nepomuk::OntologyManager::setOntologyLoader | ( | OntologyLoader * | loader | ) |
Set an OntologyLoader to be used to retrieve the RDF statements that make up an ontology.
By default Nepomuk uses a combination of the NepomukOntologyLoader and DesktopOntologyLoader where the NepomukOntologyLoader is the preferred one, i.e. only if it is not able to load the ontology DesktopOntologyLoader is used as a fallback.
If an OntologyLoader is set no fallback loader will be used. Thus, to force one of the default loaders (for example the DesktopOntologyLoader) just do:
OntologyManager will take over ownership of loader.
Overwriting the loader will delete any loader previously set via setOntologyLoader.
The documentation for this class was generated from the following file:
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