Hi there --

I am trying to create a primary key that is partially set by data and partially generated. In this example databaseId is set to a value with entityId to be generated.

I tried to use @EmbeddedId in conjunction with @GeneratedValue. This doesn't seem possible as the @GenerateValue is ignored on TransPolId.id because it doesn't have an @Id annotation

@Entity
public class IdUsing1 {
@EmbeddedId
public TransPolId id;
public String value;
}

@Embeddable
public class TransPolId implements Serializable {
@GeneratedValue
public Long id;
public Integer databaseId;
}

I also tried using @IdClass:

@Entity
@IdClass(TransPolId.class)
public class IdUsing1 {
@Id @GeneratedValue
public Long id;
@Id
public Integer databaseId;
public String value;
}

@Embeddable
public class TransPolId implements Serializable {
public Long id;
public Integer databaseId;
}

but here too the @GenerateValue is ignored. How can I get a primary key that is partially automatically generated?

Hibernate version: Hibernate 3.2.0.cr2 (HAN:3.2.0.cr1)

correct this is not possible and is considered a somewhat broken moden since the generated id is unique in itself alread. Search the forum for similar issues, people were able to work around that using usertypes