/**
* Sets a dataset for the plot.
*
* @param index the dataset index.
* @param dataset the dataset (<code>null</code> permitted).
*/
public void setDataset(int index, ValueDataset dataset) {
ValueDataset existing = (ValueDataset) this.datasets.get(index);
if (existing != null) {
existing.removeChangeListener(this);
}
this.datasets.set(index, dataset);
if (dataset != null) {
dataset.addChangeListener(this);
}
// send a dataset change event to self...
DatasetChangeEvent event = new DatasetChangeEvent(this, dataset);
datasetChanged(event);
}
/**
* Sets the dataset for the plot, replacing the existing dataset if there is one, and triggers a
* {@link PlotChangeEvent}.
*
* @param dataset the dataset (<code>null</code> permitted).
* @see #getDataset()
*/
public void setDataset(ValueDataset dataset) {
// if there is an existing dataset, remove the plot from the list of
// change listeners...
ValueDataset existing = this.dataset;
if (existing != null) {
existing.removeChangeListener(this);
}
// set the new dataset, and register the chart as a change listener...
this.dataset = dataset;
if (dataset != null) {
setDatasetGroup(dataset.getGroup());
dataset.addChangeListener(this);
}
// send a dataset change event to self...
DatasetChangeEvent event = new DatasetChangeEvent(this, dataset);
datasetChanged(event);
}