BNode repositoryNode = vf.createBNode();
model.add(repositoryNode, RDF.TYPE, REPOSITORY);
if (title != null) {
model.add(repositoryNode, REPOSITORYTITLE, vf.createLiteral(title));
model.add(repositoryNode, RDFS.LABEL, vf.createLiteral(title));
}
if (implConfig != null) {
Resource implNode = implConfig.export(model);
model.add(repositoryNode, REPOSITORYIMPL, implNode);