Martin Ledvinka
Martin Ledvinka
Currently, it is possible to specify a descriptor for an object property collection, i.e., a single descriptor is used for all elements of the collection. However, such functionality is not...
JOPA should, besides OWL linked lists, support RDF containers and collections.
Currently, JOPA uses a mix of TRANSACTIONAL and EXTENDED persistence scope strategies. Both scopes should be separated and implemented properly according to JPA spec, which is vague in certain aspects...
The Jena OntoDriver currently supports only Jena TDB. However, it is slowly being deprecated in favor of TDB2. The Jena OntoDriver should thus add support for TDB2 as well.
As a developer, I want JOPA to check that referential integrity is not violated when I remove an entity. That is, if entity `A` is referenced by another entity `B`...
As a developer, I want to be able to generate the ontology and corresponding integrity constraints from a JOPA object model. This would basically do the inverse of OWL2Java.
Currently, it is not possible to use [SPARQL `VALUES`](https://www.w3.org/TR/sparql11-query/#inline-data) to provide inline data via JOPA query API (native and SOQL). Regular `Query.setParameter` does not seem to fit the requirements for...
Attempting to insert two statements with the same subject and property and object of value 1 with any numeric datatype and `true` via the RDF4J driver leads to just the...
[SHACL](https://www.w3.org/TR/shacl/) is an RDF data validation language. We want to be able to generate an object model from SHACL constraints much like the current implementation is able to do so...