code: public JdbcMapperBuilder<T> addMapping(final String column, final int index, final int sqlType, Object... properties) {
          return addMapping(new JdbcColumnKey(column, index, sqlType), properties);
      }
docs: add a new mapping to the specified property with the specified index,  the specified type.
  
  @param column           the property name
  @param index            the property index
  @param sqlType          the property type, @see java.sql.Types
  @param properties the property properties
  @return the current builder