Comment by cchianel

I haven't; from a quick reading, InfoBax is for when you have an expensive function and want to do limited evaluations. Timefold works with cheap functions and does many evaluations. Timefold does this via Constraint Streams, so a function like:

    var score = 0;
    for (var shiftA : solution.getShifts()) {
        for (var shiftB : solution.getShifts()) {
            if (shiftA != shiftB && shiftA.getEmployee() == shiftB.getEmployee() && shiftA.overlaps(shiftB)) {
                score -= 1;
            }
        }
    }
    return score

usually takes shift * shift evaluations of overlaps, we only check the shifts affected by the change (changing it from O(N^2) to O(1) usually).

That being said, it might be useful for a move selector. I need to give it a more in depth reading.