https://github.com/sszuev/jena-owl2
Apache Jena OWL2 Model
https://github.com/sszuev/jena-owl2
jena ont-api owl-api owl2
Last synced: 22 days ago
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Apache Jena OWL2 Model
- Host: GitHub
- URL: https://github.com/sszuev/jena-owl2
- Owner: sszuev
- License: apache-2.0
- Created: 2023-05-09T13:36:41.000Z (almost 2 years ago)
- Default Branch: main
- Last Pushed: 2024-05-09T10:22:26.000Z (12 months ago)
- Last Synced: 2024-05-09T11:40:36.419Z (12 months ago)
- Topics: jena, ont-api, owl-api, owl2
- Language: Java
- Homepage: https://github.com/sszuev/jena-owl2
- Size: 1.23 MB
- Stars: 2
- Watchers: 1
- Forks: 0
- Open Issues: 0
-
Metadata Files:
- Readme: README.md
- License: LICENSE
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README
# Apache Jena OWL2 Model
------
# NOTE: This library has been integrated into Apache Jena starting from version 5.1.0 ([:jena-ontapi](https://github.com/apache/jena/tree/main/jena-ontapi)). The current repository will remain available for compatibility with Apache Jena 4.x.x.
------
### Summary
This is enhanced [Apache Jena](https://github.com/apache/jena) Inference [RDF](https://www.w3.org/TR/rdf11-concepts/) Model with [OWL2](https://www.w3.org/TR/owl2-syntax/) support.
The original code is taken from [ONT-API](https://github.com/owlcs/ont-api).
### Motivation
[com.github.owlcs.ontapi.jena.model.OntModel](https://github.com/owlcs/ont-api/blob/3.x.x/jena-impl/src/main/java/com/github/owlcs/ontapi/jena/model/OntModel.java)
covers OWL2 syntax but not inference and OWL profiles.
[org.apache.jena.ontology.OntModel](https://github.com/apache/jena/blob/main/jena-core/src/main/java/org/apache/jena/ontology/OntModel.java)
supports inference, but only follows OWL1 specification.
This project closes this gap by providing a fully functional ontology RDF model for working with OWL2.
### Major components
- [OntModel](src/main/java/com/github/sszuev/jena/ontapi/model/OntModel.java) - the main interface to work with OWL2 & OWL1 & RDFS ontologies
- [OntModelFactory](src/main/java/com/github/sszuev/jena/ontapi/OntModelFactory.java) - factory for creating different `OntModel` types
- [GraphRepository](src/main/java/com/github/sszuev/jena/ontapi/GraphRepository.java) - graph store accessor
- [OntSpecification](src/main/java/com/github/sszuev/jena/ontapi/OntSpecification.java) - encapsulates `ReasonerFactory`, `OntConfig`, `OntPersonality`
- [UnionGraph](src/main/java/com/github/sszuev/jena/ontapi/UnionGraph.java) - a Graph implementation with support hierarchy
- [OntModelConfig](src/main/java/com/github/sszuev/jena/ontapi/OntModelControls.java) - model configuration, defines
what a model can do and what it cannot do
- [OntPersonality](src/main/java/com/github/sszuev/jena/ontapi/common/OntPersonality.java) - a configuration class
to conduct Jena's polymorphism for `OntObject`s
### Supported specifications
- OWL2 DL & Full: NO_INF, RULES_INF, RDFS_INF, TRANS_INF + BUILTIN_INF (default)
- OWL2 EL: NO_INF, RULES_INF, RDFS_INF, TRANS_INF
- OWL2 QL: NO_INF, RULES_INF, RDFS_INF, TRANS_INF
- OWL2 RL: NO_INF, RULES_INF, RDFS_INF, TRANS_INF
- OWL1 DL & Full: NO_INF, RULES_INF, RDFS_INF, TRANS_INF, MICRO_RULES, MINI_RULES
- OWL1 Lite: NO_INF, RULES_INF, RDFS_INF, TRANS_INF
- RDFS: NO_INF, RDFS_INF, TRANS_INF
### Example
```java
GraphRepository repository = GraphRepository.createGraphDocumentRepositoryMem();
OntModel m = OntModelFactory.createModel(OntSpecification.OWL2_DL_MEM_BUILTIN_INF, repository)
.setNsPrefixes(OntModelFactory.STANDARD);
m.setID("ont").setVersionIRI("ont#v1");
OntObjectProperty p = m.createObjectProperty("p");
OntClass a = m.createOntClass("a");
OntIndividual i = a.createIndividual("i");
OntClass b = m.createOntClass("b")
.addSuperClass(m.createObjectIntersectionOf(a, m.createObjectHasValue(p, i)));
m.ontObjects(OntClass.class).forEach(System.out::println);
m.ontObjects(OntIndividual.class).forEach(System.out::println);
m.write(System.out, "ttl");
```
### Available via [jitpack](https://jitpack.io/#sszuev/jena-owl2/)
```xml
jitpack.io
https://jitpack.io
com.github.sszuev
jena-owl2
{{latest-version}}
```
### Apache License Version 2.0