PrimaryKeyJoinColumns (Java EE 5 SDK) - Java Platform, Enterprise Edition v5.0 API Specifications

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Java EE 5 SDK

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SUMMARY: REQUIRED | OPTIONAL

DETAIL: ELEMENT

javax.persistence
Annotation Type PrimaryKeyJoinColumns

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

This annotation groups PrimaryKeyJoinColumn annotations. It is used to map composite foreign keys.

    Example 1: 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 { ... }

Since:: Java Persistence 1.0

Required Element Summary

PrimaryKeyJoinColumn[] value
One or more PrimaryKeyJoinColumn annotations.

Required Element Summary
`PrimaryKeyJoinColumn[]`	`value` One or more `PrimaryKeyJoinColumn` annotations.

Element Detail

value

public abstract PrimaryKeyJoinColumn[] value

One or more PrimaryKeyJoinColumn annotations.