org.optaplanner.core.api.domain.lookup

Annotation Type PlanningId

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

Specifies that a bean property (or a field) is the id to match when locating an externalObject (often from another Thread or JVM). Used during Move rebasing and in a ProblemFactChange.

It is specified on a getter of a java bean property (or directly on a field) of a PlanningEntity class, planning value class or any problem fact class.

The return type can be any type which overrides Object.equals(Object) and Object.hashCode(), but is usually Long or String. It must never return a null instance.