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javax.persistence
Annotation Type MapKeyJoinColumns

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

Supports composite map keys that reference entities.

The MapKeyJoinColumns annotation groups MapKeyJoinColumn annotations. When the MapKeyJoinColumns annotation is used, both the name and the referencedColumnName elements must be specified in each of the grouped MapKeyJoinColumn annotations.

Since:

Java Persistence 2.0

See Also:

MapKeyJoinColumn

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.