IDataProvider headerDataProvider = new ColumnHeaderDataProvider();
DataLayer columnHeaderDataLayer = new DataLayer(headerDataProvider);

// enable sorting
ColumnOverrideLabelAccumulator labelAccumulator = new ColumnOverrideLabelAccumulator(columnHeaderDataLayer);
columnHeaderDataLayer.setConfigLabelAccumulator(labelAccumulator);
for (int i = 0; i < getColumns().size(); i++) {
	labelAccumulator.registerColumnOverrides(i, ColumnComparator.CUSTOM_COMPARATOR_LABEL);
}
configRegistry.registerConfigAttribute(SortConfigAttributes.SORT_COMPARATOR, new ColumnComparator(),
	DisplayMode.NORMAL, ColumnComparator.CUSTOM_COMPARATOR_LABEL);

ILayer columnHeaderLayer = new ColumnHeaderLayer(columnHeaderDataLayer, bodyLayer, bodyLayer.getSelectionLayer());
SortHeaderLayer<IGeoDataRow> sortHeaderLayer = new SortHeaderLayer<>(
	columnHeaderLayer,
	new GlazedListsSortModel<>(sortedList, columnPropertyAccessor, configRegistry, columnHeaderDataLayer),
	false);

setUnderlyingLayer(sortHeaderLayer);

// add a GlazedListsEventLayer event layer that is responsible for updating the grid on list changes
DataLayer bodyDataLayer = new DataLayer(dataProvider);
GlazedListsEventLayer<IGeoDataRow> glazedListsEventLayer = new GlazedListsEventLayer<>(bodyDataLayer, filterList);
ColumnReorderLayer columnReorderLayer = new ColumnReorderLayer(glazedListsEventLayer);
selectionLayer = new SelectionLayer(columnReorderLayer);
ViewportLayer viewportLayer = new ViewportLayer(selectionLayer);

setUnderlyingLayer(viewportLayer);