Interface SolverEventListener<Solution_>
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- Type Parameters:
Solution_- the solution type, the class with thePlanningSolutionannotation
- All Superinterfaces:
EventListener
- Functional Interface:
- This is a functional interface and can therefore be used as the assignment target for a lambda expression or method reference.
@FunctionalInterface public interface SolverEventListener<Solution_> extends EventListener
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Method Summary
All Methods Instance Methods Abstract Methods Modifier and Type Method Description voidbestSolutionChanged(BestSolutionChangedEvent<Solution_> event)Called once every time when a betterPlanningSolutionis found.
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Method Detail
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bestSolutionChanged
void bestSolutionChanged(BestSolutionChangedEvent<Solution_> event)
Called once every time when a betterPlanningSolutionis found. ThePlanningSolutionis guaranteed to be initialized. Early in the solving process it's usually called more frequently than later on.Called from the solver thread. Should return fast, because it steals time from the
Solver.In real-time planning If
Solver.addProblemFactChange(ProblemFactChange)has been called once or more, allProblemFactChanges in the queue will be processed and this method is called only once. In that case, the former bestPlanningSolutionis considered stale, so it doesn't matter whether the newScoreis better than that or not.- Parameters:
event- never null
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