Issue with Hibernate Inheritance. Subclass using wrong sequence.
My mappings are below.
Here is the base class for all classes. There is no table for this class. All subclasses user id as their PK.
Code:
@MappedSuperclass
public abstract class Model {
private Long id;
@Id
@GeneratedValue(strategy=GenerationType.Sequence, generator="myGenerator")
public Long getId() { return id; }
}
A class for Comments that has its own table, with columns for all the fields in Model
Code:
@Entity
@Inheritance(strategy=InheritanceType.TABLE_PER_CLASS)
@Table(name = "COMMENT")
@SequenceGenerator(name="myGenerator", sequenceName="COMMENT_SEQ", allocationSize=1)
public class Comment extends Model {
//some data
}
A subclass of Comment that also has its own table, with columns for all the fields in Comment and Model
Code:
@Entity
@Table(name = "ORDER_COMMENT")
@SequenceGenerator(name="myGenerator", sequenceName="ORDER_COMMENT_SEQ", allocationSize=1)
public class OrderComment extends Model {
//some data
}
This class has its own table and can have one to many order comments.
Code:
@Entity
@Table(name="ORDER")
@SequenceGenerator(name="myGenerator", sequenceName="ORDER_SEQ", allocationSize=1)
public class Order extends Model {
private Set<OrderComment> = new HashSet<OrderComment>();
@OneToMany
@JoinColumn(name="ORDER_ID")
public Set<OrderComment> getComments() { return comments; }
}
The issue is that when I add a new OrderComment to an Order, Hibernate selects the id from the sequence for Comment instead of the sequence for OrderComment.
Any ideas on why this is happening and what I can change to fix this issue? Or is there a better way to map this?
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