Hello,
I'm new to your issue tracking system and at first
I would like to thank you for your years of work on hibernate.
I have JPA-Entities with composite primary keys ( and therefore composite foreign keys ).
They consist of (Id : String, ClientId : String) and the Id-Class is not mapped as embedded.
{code}
/**
* Gruppe entity id class.
* @see Gruppe
*/
@SuppressWarnings("all")
public class _GruppeId implements CLId {
@Column(name = "ID")
private String Id;
@Column(name = "CLIENTID")
private String ClientId;
public _GruppeId() {}
public _GruppeId(String aId, String aClientId) {
setId(aId);
setClientId(aClientId);
}
public String getId() {
return Id;
}
public void setId(String aId) {
this.Id = aId;
}
public String getClientId() {
return ClientId;
}
public void setClientId(String aClientId) {
ClientId = aClientId;
}
public boolean equals(Object o) {
return ((o instanceof _GruppeId) &&
getId().equals(((_GruppeId)o).getId()) &&
getClientId().equals(((_GruppeId) o).getClientId()));
}
public int hashCode() {
return Id.hashCode() + getClientId().hashCode();
}
@Override
public String toString() {
Class<?> clazz = getClass();
return clazz.getSimpleName() + "@Id=" + getId() + ",ClientId=" + getClientId();
}
}
{code}
{code}
/**
* Gruppe entity instance implementation.
*/
@Audited
@Entity(name="Gruppe")
@IdClass(_GruppeId.class)
@FilterDef(name="ClientIdFilter", parameters={ @ParamDef( name="ClientId", type="string" ) } )
@Filter(name="ClientIdFilter", condition="CLIENTID = :ClientId")
@Table(name="GRUPPE",
indexes = {
})
@Proxy(lazy=true, proxyClass=_GruppeProxy.class)
@SuppressWarnings("all")
public class _GruppeImpl extends CLEntityImpl implements _GruppeProxy {
/**
* client to which the entity belongs
*/
@Column(name = "CLIENTID")
private String ClientId;
@Basic
@Column(name="NAME")
private String ivName;
public _GruppeImpl() {
this(0);
createEntityBL();
}
//only another constructor
protected _GruppeImpl(int aParam) {
super(aParam);
}
public EntityPK getPK () {
_GruppePKImpl gruppePKImpl = new _GruppePKImpl();
gruppePKImpl.setId(getId());
gruppePKImpl.setClientId(getClientId());
gruppePKImpl.setLock_Version(getLock_Version());
return gruppePKImpl;
}
@Override
public boolean equals(Object o) {
return ((o instanceof Gruppe) &&
getPK().equals(((Gruppe)o).getPK()));
}
@Override
public int hashCode() {
return getPK().hashCode();
}
/**
* getter for Client.
*/
public String getClientId() {
return ClientId;
}
/**
* setter for Client.
*/
public void setClientId(String aClientId) {
ClientId = aClientId;
}
@Override
public String getName() {
return ivName;
}
@Override
public void setName(String aName) {
checkStringForEmptyness(aName);
ivName = aName;
}
{code}
When trying to audit a relation to another entity with envers,
Hibernate's {code} BasicBinder {code} class fails with a ClassCastException on trying to setting set Id-Class instance to ClientId/Id-values, when trying to persist to the audit table.
After spending a few hours of work, I found out, that in class
org.hibernate.envers.internal.entities.mapper.id.SingleIdMapper.mapToMapFromEntity(...)
{code} SingleIdMapper.mapToMapFromEntity(...)
@Override
public void mapToMapFromEntity(Map<String, Object> data, Object obj) {
if ( obj == null ) {
data.put( propertyData.getName(), null );
}
else {
if ( obj instanceof HibernateProxy ) {
final HibernateProxy hibernateProxy = (HibernateProxy) obj;
data.put( propertyData.getName(), hibernateProxy.getHibernateLazyInitializer().getIdentifier() );
}
else {
final Getter getter = ReflectionTools.getGetter( obj.getClass(), propertyData );
data.put( propertyData.getName(), getter.get( obj ) );
}
}
}
{code}
When trying properties of the Id-Class are not extracted, when having a proxy.
This seems to use be a bug,
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