code: private void writeStartSequence(IXADataRecorder dataRecorder)
  			throws IOException, InterruptedException {
  
  		LogRecordWriter writer = new LogRecordWriter();
  		writer.writeLong(dataRecorder.getXADataRecorderId());
  		dataRecorder.writeRollbackData(writer.toByteArray());
  	}
docs: start sequence writes the ID of the XADataLogger to identify the content
  of the logger
  
  @param dataRecorder
  DataRecorder that uses /operates on the current physical
  logger