public class CornerLayerStack<T extends TableRow> extends
AbstractLayerTransform {
public CornerLayerStack(ColumnHeaderLayerStack<T> columnHeaderLayer,
RowHeaderLayerStack<T> rowHeaderLayer) {
DefaultCornerDataProvider cornerDataProvider = new DefaultCornerDataProvider(
columnHeaderLayer.getDataProvider(),
rowHeaderLayer.getDataProvider());
CornerLayer cornerLayer = new CornerLayer(new DataLayer(
cornerDataProvider), rowHeaderLayer, columnHeaderLayer);