XYPlot.getDatasetCount() returns wrong number

[LukasW]

Hi,

I found two problems with this method:

1) it returns 1 when there are no datasets in the plot

2) if I add datasets to a plot and then remove them with plot.setDataset(i, null) they still count!

Will this be fixed anytime soon or is there a workaround? I'm using jfreechart-1.0.10.

Thanx
/Lukas

[TeAmigo]

If you go into source for XYPlot, the 0 arg constructor calls the 4-arg constructor with null for the dataset. In that constructor, on about line 567, you see this:

Code: Select all

      this.datasets.set(0, dataset);
      if (dataset != null) {
          dataset.addChangeListener(this);
      }

If you move the set call under the test, that fixes the problem of getDatasetCount() returning 1 when it should be 0.

Code: Select all

      
      if (dataset != null) {
          this.datasets.set(0, dataset);
          dataset.addChangeListener(this);
      }