Default display of date-label on axis for new subclass?

[Guus]

I created a new subclass of org.jfree.data.time.RegularTimePeriod. Now I'm trying to set a default label, which I want to be displayed on a chart which uses my new class:

Code: Select all

TimeSeriesCollection tsc = new TimeSeriesCollection();
TimeSeries series = new TimeSeries("Some String", MySubClass.class);
series.add(new MySubClass(d,m,y), value);
// etc, etc... 

tsc.addSeries(series);

I tried setting the four dateformatters (protected static final DateFormat DATE_FORMAT, DATE_FORMAT_SHORT etc) which I also found in org.jfree.data.time.Day, to force a default dateformat for my labels, but that doesn't seem to work.

Is there any way of doing this?