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

## Annotation Type ProblemFactCollectionProperty

- Deprecated.
  In favor of `ProblemFactCollectionProperty`.

      @Target(value={METHOD,FIELD})
       @Retention(value=RUNTIME)
       @Deprecated
      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 a `ProblemFactChange` event).

  The constraints in a `ConstraintProvider` rely on problem facts for `ConstraintFactory.from(Class)`. Alternatively, scoreDRL relies on problem facts too.

  Do not annotate `planning entities` as problem facts: they are automatically available as facts for `ConstraintFactory.from(Class)` or DRL.

Copyright © 2006–2021 JBoss by Red Hat. All rights reserved.