class SimpleCatalogManager implements CatalogManager {

    @Override
    public Set<Resource> getRecordIds(Resource catalogId) {
        try (RepositoryConnection conn = configProvider.getRepository().getConnection()) {
            utils.validateResource(catalogId, vf.createIRI(Catalog.TYPE), conn);
            Set<Resource> results = new HashSet<>();
            conn.getStatements(null, vf.createIRI(Record.catalog_IRI), catalogId)
                    .forEach(statement -> results.add(statement.getSubject()));
            return results;
        }
    }

    public  SimpleCatalogManager();

}