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javax.persistence
Annotation Type PrimaryKeyJoinColumns


@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
 PrimaryKeyJoinColumn[] value
          One or more PrimaryKeyJoinColumn annotations.
 
Optional Element Summary
 ForeignKey foreignKey
          (Optional) Used to specify or disable 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 disable a foreign key constraint when table generation is in effect. If this element is not specified, the persistence provider's default foreign key strategy will apply.

Since:
Java Persistence 2.1
Default:
@javax.persistence.ForeignKey(javax.persistence.ConstraintMode.PROVIDER_DEFAULT)

EclipseLink 2.5.0, build 'v20130321-85f6cb0' API Reference