Implementations must implement this method to process each row of data in the ResultSet. This method should not call
next()
on the ResultSet; it is only supposed to extract values of the current row.
Exactly what the implementation chooses to do is up to it: A trivial implementation might simply count rows, while another implementation might build an XML document.
@param rs the ResultSet to process (pre-initialized for the current row)
@throws SQLException if a SQLException is encountered gettingcolumn values (that is, there's no need to catch SQLException)