I have an one-to-one, bidirectional entity relationship with shared keys. When I attempt to save the owner of the association I get a "null id generated" exception against the owned side of the relationship. I am utilizing hibernate-entitymanager and using spring for transaction management.
Owning Entity
@Entity
@Table(name = "lead")
public class Lead
{
private Long leadId;
private LeadAffiliate leadAffiliate;
@Id
@GeneratedValue(strategy = GenerationType.AUTO)
public Long getLeadId()
{
return leadId;
}
@OneToOne(cascade = CascadeType.ALL)
@PrimaryKeyJoinColumn
public LeadAffiliate getLeadAffiliate()
{
return leadAffiliate;
}
}
Owned Entity
@Entity
@Table(name = "lead_affiliate")
public class LeadAffiliate
{
private Long leadId;
private Lead lead;
@Id
public Long getLeadId()
{
return leadId;
}
@MapsIdmappedBy = "leadAffiliate")
@OneToOne(cascade = CascadeType.All)
@PrimaryKeyJoinColumn
@JoinColumn(name = "lead_id")
public Lead getLead()
{
return lead;
}
}
and the code below is being used to save the entity:
LeadAffiliate aff = new LeadAffiliate();
aff.setLead(lead);
lead.setLeadAffiliate(aff);
em.persist(lead);
This all works perfectly fine in hibernate 3.5.0-Final. When attempting to upgrade to 3.5.6-Final or 3.6.0.Final is when I start getting the "null id generated for LeadAffiliate" error:
javax.persistence.PersistenceException: org.hibernate.id.IdentifierGenerationException: null id generated for:class com.sellingsource.bizdev.entities.LeadAffiliate
at org.hibernate.ejb.AbstractEntityManagerImpl.convert(AbstractEntityManagerImpl.java:1214)
at org.hibernate.ejb.AbstractEntityManagerImpl.convert(AbstractEntityManagerImpl.java:1147)
at org.hibernate.ejb.AbstractEntityManagerImpl.convert(AbstractEntityManagerImpl.java:1153)
at org.hibernate.ejb.AbstractEntityManagerImpl.persist(AbstractEntityManagerImpl.java:678)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at org.springframework.orm.jpa.ExtendedEntityManagerCreator$ExtendedEntityManagerInvocationHandler.invoke(ExtendedEntityManagerCreator.java:365)
at $Proxy152.persist(Unknown Source)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at org.springframework.orm.jpa.SharedEntityManagerCreator$SharedEntityManagerInvocationHandler.invoke(SharedEntityManagerCreator.java:240)
at $Proxy120.persist(Unknown Source)
at com.sellingsource.common.dao.JpaGenericDao.create(JpaGenericDao.java:38)
... 64 more
Caused by: org.hibernate.id.IdentifierGenerationException: null id generated for:class com.sellingsource.bizdev.entities.LeadAffiliate
at org.hibernate.event.def.AbstractSaveEventListener.saveWithGeneratedId(AbstractSaveEventListener.java:123)
at org.hibernate.ejb.event.EJB3PersistEventListener.saveWithGeneratedId(EJB3PersistEventListener.java:69)
at org.hibernate.event.def.DefaultPersistEventListener.entityIsTransient(DefaultPersistEventListener.java:179)
at org.hibernate.event.def.DefaultPersistEventListener.onPersist(DefaultPersistEventListener.java:135)
at org.hibernate.impl.SessionImpl.firePersist(SessionImpl.java:799)
at org.hibernate.impl.SessionImpl.persist(SessionImpl.java:791)
at org.hibernate.engine.EJB3CascadingAction$1.cascade(EJB3CascadingAction.java:48)
at org.hibernate.engine.Cascade.cascadeToOne(Cascade.java:392)
at org.hibernate.engine.Cascade.cascadeAssociation(Cascade.java:335)
at org.hibernate.engine.Cascade.cascadeProperty(Cascade.java:204)
at org.hibernate.engine.Cascade.cascade(Cascade.java:161)
at org.hibernate.event.def.AbstractSaveEventListener.cascadeBeforeSave(AbstractSaveEventListener.java:450)
at org.hibernate.event.def.AbstractSaveEventListener.performSaveOrReplicate(AbstractSaveEventListener.java:282)
at org.hibernate.event.def.AbstractSaveEventListener.performSave(AbstractSaveEventListener.java:203)
at org.hibernate.event.def.AbstractSaveEventListener.saveWithGeneratedId(AbstractSaveEventListener.java:129)
at org.hibernate.ejb.event.EJB3PersistEventListener.saveWithGeneratedId(EJB3PersistEventListener.java:69)
at org.hibernate.event.def.DefaultPersistEventListener.entityIsTransient(DefaultPersistEventListener.java:179)
at org.hibernate.event.def.DefaultPersistEventListener.onPersist(DefaultPersistEventListener.java:135)
at org.hibernate.event.def.DefaultPersistEventListener.onPersist(DefaultPersistEventListener.java:61)
at org.hibernate.impl.SessionImpl.firePersist(SessionImpl.java:808)
at org.hibernate.impl.SessionImpl.persist(SessionImpl.java:782)
at org.hibernate.impl.SessionImpl.persist(SessionImpl.java:786)
at org.hibernate.ejb.AbstractEntityManagerImpl.persist(AbstractEntityManagerImpl.java:672)
... 77 more
As an aside, I am not sure that the annotations on Lead Affiliate were quite right to begin with. They worked, but seemed kind of kludgey. So I have since changed them to:
@Entity
@Table(name = "lead_affiliate")
public class LeadAffiliate
{
private Long leadId;
private Lead lead;
@Id
@GenericGenerator(name = "foreign", strategy = "foreign", parameters = {
@org.hibernate.annotations.Parameter(name = "property", value="lead")
})
@GeneratedValue(generator = "foreign")
public Long getLeadId()
{
return leadId;
}
@OneToOne(mappedBy = "leadAffiliate")
@PrimaryKeyJoinColumn
public Lead getLead()
{
return lead;
}
}
However, with these changes I get the same result. (Works in 3.5.0 but not 3.5.6 or 3.6.0)
Is there a new way I need to be doing this or is this a bug? My concern is that my code is currently working because of a bug :/.