code: protected List<OrderMember> getMembers(HierarchicalProperty body)
     {
        ArrayList<OrderMember> members = new ArrayList<OrderMember>();
        List<HierarchicalProperty> childs = body.getChildren();
        for (int i = 0; i < childs.size(); i++)
        {
           OrderMember member = new OrderMember(childs.get(i));
           members.add(member);
        }
        return members;
     }
docs: Get oder members.
  
  @param body request body.
  @return list of members