PrimaryKeyJoinColumns (EclipseLink 2.6.1, API Reference)

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

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:: Java Persistence 1.0

Required Element Summary

Required Elements
Modifier and Type Required Element and Description

PrimaryKeyJoinColumn[] value
One or more PrimaryKeyJoinColumn annotations.

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)

Annotation Type PrimaryKeyJoinColumns

Required Element Summary

Optional Element Summary

Element Detail

value

foreignKey