public void visit(OWLUntypedConstant node) { try { lastDataValuePointer = owlConstant2DataValuePointerMap.get(node); if (lastDataValuePointer == null) { owlOntologyManager .getOWLDataFactory() .getOWLDataType(XSDVocabulary.STRING.getURI()) .accept((OWLDataVisitor) this); lastDataValuePointer = faCTPlusPlus.getDataValue(node.getLiteral(), getLastDataTypePointer()); owlConstant2DataValuePointerMap.put(node, lastDataValuePointer); dataValuePointerMap.put(lastDataValuePointer, node); } } catch (Exception e) { throw new FaCTPlusPlusRuntimeException(e); } }