JPA Annotation

PrimaryKeyJoinColumns

Target: TYPE, METHOD, FIELD
Implemented Interfaces:
Annotation
Groups PrimaryKeyJoinColumn annotations. It is used to map composite foreign keys.
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 { ... }
See Also:
ForeignKey
Since:
JPA 1.0

Public Annotation Attributes

ForeignKey foreignKey default @ForeignKey(PROVIDER_DEFAULT)
(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:
JPA 2.1
PrimaryKeyJoinColumn[] value default null
One or more PrimaryKeyJoinColumn annotations.
Since:
JPA 1.0