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@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 { ... }
| Required Element Summary | |
|---|---|
PrimaryKeyJoinColumn[] |
value
One or more PrimaryKeyJoinColumn annotations. |
| Element Detail |
|---|
public abstract PrimaryKeyJoinColumn[] value
PrimaryKeyJoinColumn annotations.
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