@Target(value={TYPE,METHOD,FIELD})
@Retention(value=RUNTIME)
public @interface PrimaryKeyJoinColumns
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 { ... }
| Modifier and Type | Required Element and Description |
|---|---|
PrimaryKeyJoinColumn[] |
value
One or more
PrimaryKeyJoinColumn annotations. |
| Modifier and Type | Optional Element and Description |
|---|---|
ForeignKey |
foreignKey
(Optional) The foreign key constraint specification for the join columns.
|
public abstract PrimaryKeyJoinColumn[] value
PrimaryKeyJoinColumn annotations.public abstract ForeignKey foreignKey