clear method

Future<void> clear()

Implementation

Future<void> clear() async {
  for (var poiholderCollection in poiholderCollections.values) {
    await poiholderCollection.dispose();
  }
  for (var wayholderCollection in wayholderCollections.values) {
    await wayholderCollection.dispose();
  }
  poiholderCollections.clear();
  wayholderCollections.clear();
}