bug 1273: added scoring scheme that gives 0 points to race winner

java/com.sap.sailing.domain.common/src/com/sap/sailing/domain/common/ScoringSchemeType.java

@@ -1,5 +1,6 @@
 package com.sap.sailing.domain.common;
 
 public enum ScoringSchemeType {
-    LOW_POINT, HIGH_POINT, HIGH_POINT_ESS_OVERALL, HIGH_POINT_LAST_BREAKS_TIE, HIGH_POINT_FIRST_GETS_TEN
+    LOW_POINT, HIGH_POINT, HIGH_POINT_ESS_OVERALL, HIGH_POINT_LAST_BREAKS_TIE,
+    HIGH_POINT_FIRST_GETS_TEN, LOW_POINT_WINNER_GETS_ZERO
 }

java/com.sap.sailing.domain/src/com/sap/sailing/domain/leaderboard/impl/LowPointWinnerGetsZero.java

@@ -0,0 +1,41 @@
+package com.sap.sailing.domain.leaderboard.impl;
+
+import com.sap.sailing.domain.base.Competitor;
+import com.sap.sailing.domain.base.RaceColumn;
+import com.sap.sailing.domain.common.ScoringSchemeType;
+
+/**
+ * As compared to the regular low-point scheme, the 2013 ISAF World Cup will score the winner of a race with
+ * 0 points, all others with their ranks. Ties are broken like this:
+ * <ul>
+ * <li>25.9    RRS B8 is deleted. RRS A8 is changed as follows: 
+ * <li> 25.9.1    For boats competing in a medal stage, ties in the regatta score are broken by the medal stage score. 
+ * <li> 25.9.2    Ties in a medal stage with a single race are broken by applying RRS A8 to the opening series scores. 
+ * <li> 25.9.3    All other series ties shall be broken in accordance with A8.2. 
+ * </ul>
+ * 
+ * Discards are to be constrained to each series, with no discards in the medal series. However, since there is
+ * a new rule for carrying the qualification results to the final series, this won't be a regular regatta
+ * leaderboard anyhow. Instead, the final series starts out with an artificial race that has its scores based
+ * on the competitor rankings after the qualification series, where each fleet's scores again start with 0, then 2, ...
+ * So the best boat in the silver fleet will get 0 points in the carry race, the next boat 2, and so on.
+ * The carry race is discardable.
+ * 
+ * @author Axel Uhl (D043530)
+ *
+ */
+public class LowPointWinnerGetsZero extends LowPoint {
+    private static final long serialVersionUID = 3405249102284162690L;
+
+    @Override
+    public Double getScoreForRank(RaceColumn raceColumn, Competitor competitor, int rank, Integer numberOfCompetitorsInRace) {
+        return rank == 0 ? null : rank == 1 ? 0.0 : (double) rank;
+    }
+
+    // TODO handle tie-breaking rules properly
+    
+    @Override
+    public ScoringSchemeType getType() {
+        return ScoringSchemeType.LOW_POINT_WINNER_GETS_ZERO;
+    }
+}