class OneDto{
  Long id;
  String attributeMod;
  String attributeDontMod;
  List<ChildDto> children; //used to add or update children to "one" entity. In case we do update - children that is not in list will be deleted, those that have id=null will
//be created and linked to this "one" entity, and those that have id=[some_number] will be updated and linked to this "one" entity
}

class ChildDto{
  Long id;
  String attributeMod;
  String attributeDontMod;
}

class OneDto{
  Long id;
  String attributeMod;
  String attributeDontMod;
  List<ChildDto> childrenToAdd; //used if we want to add children that is not yet in DB and attach them to this "one" entity
  List<ChildDto> childrenToAddAndUpdate; //used if we want to update existing entites and attach them to this "one" entity
  List<Long> childrenIdsToDelete; //used in case that we want to update existing "one" entity - to remove children
}

class ChildDto{//same as above}

class OneDto{
  Long id;
  String attributeMod;
  String attributeDontMod;
}

class ChildDto{
  Long id;
  Long oneId;
  String attributeMod;
  String attributeDontMod;
}