switch (solverRankingType) {
case TOTAL_SCORE:
solverRankingComparator = new TotalScoreSolverRankingComparator();
break;
case WORST_SCORE:
solverRankingComparator = new WorstScoreSolverRankingComparator();
break;
case TOTAL_RANKING:
solverRankingWeightFactory = new TotalRankSolverRankingWeightFactory();
break;
default: