Update histograms on each execution

[ruloweb]

Histograms do not have a clearAllSeries method as the TimeSeriesChartGenerator. How can I do to reset a histogram graph on each execution?

I found a workaround using the moveSeries method on the chart generator which calls a protected update method:

alphaHistogramChart.moveSeries(alphaHistogramAttributes.getSeriesIndex(), true);

I'm wondering if there is a better way of doing this.