| GanttCategoryDataset | An extension of the IntervalCategoryDataset interface that adds
support for multiple sub-intervals. |
| SlidingGanttCategoryDataset | A GanttCategoryDataset implementation that presents a subset of the
categories in an underlying dataset. |
| Task | A simple representation of a task. |
| TaskSeries | A series that contains zero, one or many Task objects. |
| TaskSeriesCollection | A collection of TaskSeries objects. |
| XYTaskDataset | A dataset implementation that wraps a TaskSeriesCollection and
presents it as an IntervalXYDataset, allowing a set of tasks to
be displayed using an XYBarRenderer (and usually a
SymbolAxis). |