findAll method Null safety
override
Find all domains.
Implementation
@override
List<Entity> findAll() {
///fire property change listener BEFORE_FIND_ALL. Allways an EmptyList{}
print("${PropertyChangeConstrains.BEFORE_FIND_ALL} => EmptyList{}");
List<Entity> list = _list.toList(growable: false);
///fire property change listener AFTER_EDIT
print("${PropertyChangeConstrains.AFTER_FIND_ALL} => $list");
return list;
}