code: private void setTypeMappers(TypeMapper[] typeMappers) throws SQLException {
  
          if (typeMappers.length > 0) {
              Map<String, Class<?>> mappers = _connection.getTypeMap();
              for (TypeMapper t : typeMappers) {
                  mappers.put(t.UDTName(), t.mapperClass());
              }
              _connection.setTypeMap(mappers);
          }
      }
docs: Set any custom type mappers specifed in the annotation for the connection.  Used for mapping SQL UDTs to
  java classes.
  
  @param typeMappers An array of TypeMapper.