code: @Override
      public void init(Partition p) throws Exception {
          Class.forName(Driver.class.getCanonicalName());
          conn = DriverManager.getConnection(jdbcNeo4JDeepJobConfig.getConnectionUrl(),
                  jdbcNeo4JDeepJobConfig.getUsername(),
                  jdbcNeo4JDeepJobConfig.getPassword());
          Statement statement = conn.createStatement();
          String query = jdbcNeo4JDeepJobConfig.getCypherQuery();
          resultSet = statement.executeQuery(query);
          // Fetches first element
          this.hasNext = resultSet.next();
      }
docs: {@inheritDoc}