code: public BatchFraction defaultJobRepository(final String name, final DatasourcesFraction datasource) {
          jdbcJobRepository(name, datasource);
          return defaultJobRepository(name);
      }
docs: Adds a new JDBC job repository and sets it as the default job repository.
  
  @param name       the name for the JDBC job repository
  @param datasource the datasource to use to connect to the database
  @return this fraction