英文:
Disabling and enabling constraints during runtime
问题
I've set the constaints like this:-
ScoreDirectorFactoryConfig scoreDirectorFactoryConfig = new ScoreDirectorFactoryConfig();scoreDirectorFactoryConfig.setConstraintProviderClass(VehicleRoutingConstraintProvider.class);
I couldn't find out anything related to enabling and/or disabling constraints in optaplanner.
So, I wanted to know if there's a way to enable and disable the constraints after or before setting the constraint provider class.
My question is:
Can we enable and/or disable constraint during runtime in optaplanner based on a condition?
英文:
I've set the constaints like this:-
ScoreDirectorFactoryConfig scoreDirectorFactoryConfig = new ScoreDirectorFactoryConfig(); scoreDirectorFactoryConfig.setConstraintProviderClass(VehicleRoutingConstraintProvider.class);
I couldn't find out anything related to enabling and/or disabling constraints in optaplanner.
So, I wanted to know if there's a way to enable and disable the constraints after or before setting the constraint provider class.
My question is:
Can we enable and/or disable constraint during runtime in optaplanner based on a condition?
答案1
得分: 1
你可以使用@ConstraintConfiguration类来禁用约束，并将与禁用约束对应的@ConstraintWeight字段设置为零分数（请参阅 https://www.optaplanner.org/docs/optaplanner/latest/score-calculation/score-calculation.html#constraintConfiguration 以获取完整的详细信息）。
Planning Solution Class（规划解决方案类）：
@PlanningSolutionpublic class ConferenceSolution {@ConstraintConfigurationProviderprivate ConferenceConstraintConfiguration constraintConfiguration;// ...}
ConstraintConfiguration（约束配置类）：
@ConstraintConfiguration(constraintPackage = "...conferencescheduling.score")public class ConferenceConstraintConfiguration {@ConstraintWeight("Speaker conflict")private HardMediumSoftScore speakerConflict = HardMediumSoftScore.ofHard(10);@ConstraintWeight("Theme track conflict")private HardMediumSoftScore themeTrackConflict = HardMediumSoftScore.ofSoft(10);@ConstraintWeight("Content conflict")private HardMediumSoftScore contentConflict = HardMediumSoftScore.ofSoft(100);// ...}
禁用约束：
ConferenceConstraintConfiguration constraintConfig = new ConferenceConstraintConfiguration();constraintConfig.contentConflict = HardMediumSoftScore.ZERO;
请注意，我已经将代码示例中的注释和代码部分翻译成中文。
英文:
You can disable constraints by using a @ConstraintConfiguration class and set the @ConstraintWeight field corresponding to the disabled constraint to the zero score (see https://www.optaplanner.org/docs/optaplanner/latest/score-calculation/score-calculation.html#constraintConfiguration for full details).
Planning Solution Class:
@PlanningSolutionpublic class ConferenceSolution {@ConstraintConfigurationProviderprivate ConferenceConstraintConfiguration constraintConfiguration;// ...}
ConstraintConfiguration:
@ConstraintConfiguration(constraintPackage = "...conferencescheduling.score")public class ConferenceConstraintConfiguration {@ConstraintWeight("Speaker conflict")private HardMediumSoftScore speakerConflict = HardMediumSoftScore.ofHard(10);@ConstraintWeight("Theme track conflict")private HardMediumSoftScore themeTrackConflict = HardMediumSoftScore.ofSoft(10);@ConstraintWeight("Content conflict")private HardMediumSoftScore contentConflict = HardMediumSoftScore.ofSoft(100);// ...}
Disabling constraints
ConferenceConstraintConfiguration constraintConfig = new ConferenceConstraintConfiguration();constraintConfig.contentConflict = HardMediumSoftScore.ZERO;
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