I have a problem with my composite primary key class and annotations.
The primary key contains two many-to-one references to other tables.
I have another class like the one below that works. The difference is that
the working class has a third variable which is NOT a reference but a simple Integer variable. Does anyone have any idea how to get this
working?

Marko


Hibernate version:
3.1

Mapping documents:

@Embeddable
public class ContractLinePK implements Serializable
{
private Contract contract;
private Sku sku;

@ManyToOne(fetch=FetchType.LAZY)
@JoinColumn(name="CONTRACT_ID")
public Contract getContract() { return contract; }
public void setContract(Contract contract) { this.contract = contract; }

@ManyToOne(fetch=FetchType.LAZY)
@JoinColumn(name="SKU_ID")
public Sku getSku() { return sku; }
public void setSku(Sku sku) { this.sku = sku; }

// equals and hashcode omitted
}

Full stack trace of any exception that occurs:
org.hibernate.AnnotationException: ContractLinePK has not persistent id property
at org.hibernate.cfg.AnnotationBinder.bindId(AnnotationBinder.java:1499)
at org.hibernate.cfg.AnnotationBinder.processElementAnnotations(AnnotationBinder.java:1002)
at org.hibernate.cfg.AnnotationBinder.bindClass(AnnotationBinder.java:654)
at org.hibernate.cfg.AnnotationConfiguration.processArtifactsOfType(AnnotationConfiguration.java:266)
at org.hibernate.cfg.AnnotationConfiguration.secondPassCompile(AnnotationConfiguration.java:199)
at org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:1146)
at Main.<init>(Main.java:52)
at Main.main(Main.java:166)