Top Description Methods
jakarta.persistence

public @Interface PrimaryKeyJoinColumns

extends Annotation
Annotations
@Target:TYPE, METHOD, FIELD
@Retention:RUNTIME
Imports
java.lang.annotation.Target, .Retention
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 { ... } 
@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
1.0
See Also
ForeignKey

Method Summary

Modifier and TypeMethod and Description
public ForeignKey
foreignKey()

(Optional) Used to specify or control the generation of a foreign key constraint when table generation is in effect.

public PrimaryKeyJoinColumn[]
value()

One or more PrimaryKeyJoinColumn annotations.

Inherited from java.lang.annotation.Annotation:
annotationTypeequalshashCodetoString

Method Detail

foreignKeyback to summary
public 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, a default foreign key strategy is selected by the persistence provider.

Since
2.1
valueback to summary
public PrimaryKeyJoinColumn[] value()

One or more PrimaryKeyJoinColumn annotations.