private static final long serialVersionUID = 1L;
public EmptyDatasetPlaceholder() {
TimeSeriesEx timeSeries = new TimeSeriesEx("");
Daytime endTime = new Daytime(new Date());
Daytime startTime = endTime.addMinute(-5);
timeSeries.add(new Millisecond(startTime.usec / 1000, startTime.second, startTime.minute, startTime.hour, startTime.date, startTime.month, startTime.year), 0);
timeSeries.add(new Millisecond(endTime.usec / 1000, endTime.second, endTime.minute, endTime.hour, endTime.date, endTime.month, endTime.year), 1000);
addSeries(timeSeries);
}