@Override
  public void close()
      throws IOException {
    if (delegateReader != null) {
      logger.atWarning().log(
          "Got non-null delegateReader during close(); possible premature close() call.");
      delegateReader.close();
      delegateReader = null;
    }
  }
@ Override public void close ( ) throws IOException { if ( delegateReader != null ) { logger . atWarning ( ) . log ( "Got non-null delegateReader during close(); possible premature close() call." ) ; delegateReader . close ( ) ; delegateReader = null ; } }
Closes the record reader.

@throws IOException on IO Error.