org.optaplanner.core.api.domain.solution.drools

Annotation Type ProblemFactCollectionProperty

@Target(value={METHOD,FIELD})
 @Retention(value=RUNTIME)
public @interface ProblemFactCollectionProperty

Specifies that a property (or a field) on a PlanningSolution class is a Collection of problem facts. A problem fact must not change during solving (except through ProblemFactChange event).

The problem facts will be added as facts in the KieSession of the DroolsScoreDirector, so the score rules can use them.

Do not annotate planning entities as problem facts: they are automatically inserted into the KieSession.

See Also:

ProblemFactProperty