@Override
    protected RowMapper<Map<String, Object>> getRowMapper() {
        return MAPPER;
    }
An {@link PersonAttributeDao}
implementation that maps from column names in the result of a SQL query
to attribute names. <br>
You must set a Map from column names to attribute names and only column names
appearing as keys in that map will be used.

@author andrew.petro@yale.edu
@author Eric Dalquist
@since 7.1.0
support/cas-server-support-jdbc-authentication/src/main/java/org/apereo/cas/jdbc/SingleRowJdbcPersonAttributeDao.java