hollow/src/main/java/com/netflix/hollow/tools/diff/count/HollowFieldDiff.java
public void addDiff(int fromOrdinal, int toOrdinal, int score) {
        if(isSameDiffAsLastAdd(fromOrdinal, toOrdinal)) {
            int scoreIdx = diffPairScores.size() - 1;
            diffPairScores.set(scoreIdx, diffPairScores.get(scoreIdx) + score);
        } else {
            diffFromOrdinals.add(fromOrdinal);
            diffToOrdinals.add(toOrdinal);
            diffPairScores.add(score);
        }

        totalDiffScore += score;
    }
public void addDiff(int fromOrdinal, int toOrdinal, int score) {
        if(isSameDiffAsLastAdd(fromOrdinal, toOrdinal)) {
            int scoreIdx = diffPairScores.size() - 1;
            diffPairScores.set(scoreIdx, diffPairScores.get(scoreIdx) + score);
        } else {
            diffFromOrdinals.add(fromOrdinal);
            diffToOrdinals.add(toOrdinal);
            diffPairScores.add(score);
        }

        totalDiffScore += score;
    }
Should be called exclusively from the {@link HollowDiff} -- not intended for external consumption

@param fromOrdinal the from ordinal
@param toOrdinal the to ordinal
@param score the score