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

 Example: ValuedCustomer subclass
 @Entity
 @Table(name="VCUST")
 @DiscriminatorValue("VCUST")
 @PrimaryKeyJoinColumns({
 @PrimaryKeyJoinColumn(name="CUST_ID", 
 referencedColumnName="ID"),
 @PrimaryKeyJoinColumn(name="CUST_TYPE",
 referencedColumnName="TYPE")
 })
 public class ValuedCustomer extends Customer { ... }
 

Since:

Java Persistence 1.0

See Also:

ForeignKey

• Required Element Summary

  Required Elements

  Modifier and Type	Required Element and Description
  PrimaryKeyJoinColumn[]	value One or more PrimaryKeyJoinColumn annotations.

• Optional Element Summary

  Optional Elements

  Modifier and Type	Optional Element and Description
  ForeignKey	foreignKey (Optional) Used to specify or control the generation of a foreign key constraint when table generation is in effect.

• Element Detail

  • value

    public abstract PrimaryKeyJoinColumn[] value

    One or more PrimaryKeyJoinColumn annotations.

• • foreignKey

    public abstract ForeignKey foreignKey

    (Optional) Used to specify or control the generation of a foreign key constraint when table generation is in effect. If both this element and the foreignKey element of any of the PrimaryKeyJoinColumn elements are specified, the behavior is undefined. If no foreign key annotation element is specified in either location, the persistence provider's default foreign key strategy will apply.

    Since:

    Java Persistence 2.1

    Default:

    @javax.persistence.ForeignKey(javax.persistence.ConstraintMode.PROVIDER_DEFAULT)