See Score calculation performance tricks. Especially the section about incremental score calculation.
nested constraint in simple java score calculation is very slow
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28-09-2022 - |
Question
I'm trying to build 3 nested constraints with OptaPlanner. It works, but it's very slow (even for a very small data set)... Maybe someone does have an idea how to improve the performance?
// pseudocode
first_constraint = false;
second_constraint = false;
third_constraint = false;
if (first_constraint == true) {
if (second_constraint == true) {
if (third_constraint == false) {score--;}
} else {score--;}
} else {score--;}
Solution
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