javax.persistence
Annotation Type MapKeyJoinColumns

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

Composite map keys referencing entities are supported by means of the MapKeyJoinColumns anno- tation. The MapKeyJoinColumns annotation groups MapKeyJoinColumn annotations. When the MapKeyJoinColumns annotation is used, both the name and the referencedCol- umnName elements must be specified in each of the grouped MapKeyJoinColumn annotations.

Since:

JPA 2.0 version.

Author:

Florent Benoit

See Also:

JPA 2.0 specification

Required Element Summary

MapKeyJoinColumn[]

value (Required) The map key join columns that are used to map to the entity that is the map key.

Element Detail

value

public abstract MapKeyJoinColumn[] value

(Required) The map key join columns that are used to map to the entity that is the map key.