Index: packages/charted/lib/charts/data_transformers/transpose_transformer.dart |
diff --git a/packages/charted/lib/charts/data_transformers/transpose_transformer.dart b/packages/charted/lib/charts/data_transformers/transpose_transformer.dart |
index d1cad14395991994e8bcd6e809f7d58cf4e0fb6d..b09c681b923642534851e40a8868ba06354402c9 100644 |
--- a/packages/charted/lib/charts/data_transformers/transpose_transformer.dart |
+++ b/packages/charted/lib/charts/data_transformers/transpose_transformer.dart |
@@ -17,7 +17,7 @@ part of charted.charts; |
/// All values in the data except for the data in the label column must have the |
/// same type; All columns except for the label column must have the same |
/// formatter if a formatter exist for columns. |
-class TransposeTransformer extends ChangeNotifier |
+class TransposeTransformer extends Observable |
implements ChartDataTransform, ChartData { |
final SubscriptionsDisposer _dataSubscriptions = new SubscriptionsDisposer(); |
ObservableList<ChartColumnSpec> columns = new ObservableList(); |