Difference between revisions of "LoadOWLOntologyFromDB"
From Protege Wiki
Line 16: | Line 16: | ||
<code> | <code> | ||
+ | <pre> | ||
JenaKnowledgeBaseFactory.useStandalone = false; | JenaKnowledgeBaseFactory.useStandalone = false; | ||
Collection errors = new ArrayList(); | Collection errors = new ArrayList(); | ||
Line 23: | Line 24: | ||
creator.setUsername("protege"); | creator.setUsername("protege"); | ||
creator.setPassword("mypass"); | creator.setPassword("mypass"); | ||
− | creator.create(errors); | + | creator.setTable("tableName"); |
+ | try { | ||
+ | creator.create(errors); | ||
+ | } catch (OntologyLoadException e) { | ||
+ | e.printStackTrace(); | ||
+ | } | ||
OWLModel owlModel = creator.getOWLModel(); | OWLModel owlModel = creator.getOWLModel(); | ||
+ | |||
+ | </pre> | ||
</code> | </code> | ||
Revision as of 12:35, August 2, 2008
How do I load a Protege-OWL ontology from a Protege database using the API?
Method 1
The simplest way to load a Protege-OWL ontology from a Protege database is to programatically load the project file (.pprj), which already contains all of the necessary database connection information:
Project prj = Project.loadProjectFromFile("/home/pizza_db.pprj",errors);
OWLModel owlModel = (OWLModel) prj.getKnowledgeBase();
...
Method 2
The second method should be used if there is no project file (.pprj) associated with the Protege-OWL database ontology:
JenaKnowledgeBaseFactory.useStandalone = false; Collection errors = new ArrayList(); OwlDatabaseCreator creator = new OwlDatabaseCreator(false); creator.setDriver("com.mysql.jdbc.Driver"); creator.setURL("jdbc:mysql://localhost/protege"); creator.setUsername("protege"); creator.setPassword("mypass"); creator.setTable("tableName"); try { creator.create(errors); } catch (OntologyLoadException e) { e.printStackTrace(); } OWLModel owlModel = creator.getOWLModel();
The "false" argument to the
OwlDatabaseCreatorclass tells it to use an existing database rather than overwrite it.