timefold-solver

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Feat: Improve error message when @PlanningListVariable is used alongside a @PlanningVariable on different classes

5

**Is your feature request related to a problem? Please describe.** Currently, if you use a `@PlanningVariable` and a `@PlanningListVariable` on different classes, the following exception occurs: ``` java.lang.IllegalArgumentException: The config...

Christopher-Chianelli

**Describe the bug** When you have more than 1 Shadowvariable listeners on a variable, they are called alphabetically based on the source variable name. **Expected behavior** They are called in...

pieterdeschepper

Backwards incompatible changes for Timefold Solver 2.0.0 (unplanned)

1

We use this issue to remind ourselves of what we need to do (or might want to do) when the time for Solver 2.0 comes. Backwards Compatible breaking ideas: -...

triceo

Feat: start.timefold.ai (Optimization project skeleton)

1

Let's say I want to start a new optimization project. I'd probably: - take one of the solver examples/quickstarts as an inspiration - set up a maven project - declared...

mcimbora

Benchmark report perf summary: go to zero

3

 the Y axis should go to zero

ge0ffrey

ProblemFact changes are tedious to use: for every possible change, you need to write a custom problem fact change. Alternatively allow this workflow: - User submits a problem, solving start...

ge0ffrey

**Motivation:** In use cases with a fairness or load balancing constraint, alongside other soft constraints, the only practical way to write that constraint is using the `sqrt(sum(x²))` pattern. In the...

ge0ffrey

ConstraintVerifier rewards and penalties inverted when using impact()

3

**Describe the bug** I have a constraint that uses `impact()` to either penalize or reward the score based on the planning entities. Since the `ConstraintVerifier` does not have a specific...

matthias-roussel-soyhuce

Kotlin + GIZMO should be compatible

1

From https://github.com/TimefoldAI/timefold-solver/discussions/531: ``` @PlanningSolution class MySolution { @get:PlanningEntityCollectionProperty var itemList: List = listOf() ... ``` I get the error ``` Caused by: java.lang.ExceptionInInitializerError: Exception java.lang.IllegalStateException: Member (itemList) of class (com.acme.model.MySolution)...

ge0ffrey

Filters for KOptListMove don't work yet?

5

Hello. **Describe the bug** After you made KOptListMove public, I tried to create trivial filter for it, but it didn't work. [https://stackoverflow.com/questions/77619677/timefold-is-it-possible-to-filter-out-all-trivial-2opt-moves-for-planninglistva](url). ``` public class KOptFilter implements SelectionFilter { @Override...

AlexeyTrefilov