Common superclass for all LineChart DataModels to provide a "type"
of data model that can be assigned to a LineChart.
Usage
A LineChartDataModel can be assigned to an instace of the LineChart class.
Ex:
LineChartDataModel dataModel = new LineChartTableDataModel( new SomeTaleModel() ); // See LineChartTableDataModel or LineChartOLAPDataModel
LineChart lineChart = new LineChart();
lineChart.setDataModel(dataModel);
Behavior
See:
LineChartTableDataModel and
LineChartOLAPDataModel
Extending
This class provides a type for the LineChart's data models but is
only intended for internal subclassing.