Package org.optaplanner.core.api.domain.solution.cloner

## Annotation Type DeepPlanningClone

-     @Target({TYPE,METHOD,FIELD})
      @Inherited
      @Retention(RUNTIME)
      public @interface DeepPlanningClone

  Marks a problem fact class as being required to be deep planning cloned. Not needed for a `PlanningSolution` or `PlanningEntity` because those are automatically deep cloned.

  It can also mark a property (getter for a field) as being required to be deep planning cloned. This is especially useful for `Collection` (or `Map`) properties. Not needed for a `Collection` (or `Map`) property with a generic type of `PlanningEntity` or a class with a DeepPlanningClone annotation, because those are automatically deep cloned. Note: If it annotates a property (getter method for a field) returning `Collection` (or `Map`), it clones the `Collection` (or `Map`), but its elements (or keys and values) are only cloned if they are of a type that needs to be planning cloned.

  This annotation is ignored if a custom `SolutionCloner` is set with `PlanningSolution.solutionCloner()`.