Date and Calendar.">
Jakarta Persistence (JPA) Annotation Type

jakarta.persistence.MapKeyTemporal

Implemented Interfaces:
Annotation
Target:
Method, Field
This annotation must be specified for persistent map keys of type Date and Calendar. It may only be specified for map keys of these types.

The MapKeyTemporal annotation can be applied to an element collection or relationship of type Map<K,V> in conjunction with the ElementCollection, OneToMany, or ManyToMany annotation.

Example: 

 @OneToMany
 @MapKeyTemporal(DATE)
 protected Map employees;
Deprecated:
Newly-written code should use the date/time types defined in java.time.
Since:
Jakarta Persistence (JPA) 2.0

Annotation Elements

TemporalType value
(Required) The type used in mapping java.util.Date or java.util.Calendar.
Since:
Jakarta Persistence (JPA) 1.0

Additional JDK methods inherited from java.lang.annotation.Annotation

annotationType(), equals(Object), hashCode(), toString()