protected void registerFactorComparator ( final FactorComparator < T > comparator ) { if ( null == comparator || Integer . MAX_VALUE - this . getTotalWeight ( ) < comparator . getWeight ( ) ) { throw new IllegalArgumentException ( "unable to register comparator." + " The passed comparator is null or has an invalid weight value." ) ; } // add or replace the Comparator. this . factorComparatorList . put ( comparator . getFactorName ( ) , comparator ) ; logger . debug ( String . format ( "Factor comparator added for '%s'. Weight = '%s'" , comparator . getFactorName ( ) , comparator . getWeight ( ) ) ) ; }
function to register a factorComparator to the internal Map for future reference .