anchor.diff:  on-demand SQL Objects. Unless the methods are called in a nested way (see
   <<On-Demand>>), the returned object will already be closed.
   
  -===== @Register___Mapper
  -
  -Use `@Register___Mapper` annotations on SQL Objects to declaratively register
  -mappers.
  -
  -If a row mapper exists for the element type, use `@RegisterRowMapper`:
  +===== @RegisterRowMapper
  +
  +Use `@RegisterRowMapper` to register a concrete row mapper class:
   
   [source,java]
   ----
  
positive.code: The constructor parameter names "id", "name" match the database column names
  and as such no custom mapper code is required at all.
  
  TODO: column name prefixes
  
  ===== BeanMapper
  
  
negative.code: }
  ----
  
  Row mappers used with this annotation must meet a few requirements:
  
  [source,java]
  ----
  public class UserMapper implements RowMapper<User> { // <1> <2>
    public UserMapper() { // <3>
      ...
    }
  
  