Hibernate not fetching public member

Question

Consider the following code:

@Entity
@Table(name = "a")
public class A implements Serializable
{
    @Id
    @GeneratedValue(strategy = GenerationType.IDENTITY)
    @Column(name="id")
    public int id;

    @Transient
    public B b;

    public B getB()
    {
     return B;
    }
}

When I fetch A, I'm manually filling B (another hibernate entity). If I try and access by by using a.b, then it fails, but, if I user a.getB(); then it succeeds.

Why is this?

Answer 1

Sounds like a lazy fetching issue. The public reference is null when you try to access it directly, but when you do it with "get", Hibernate knows to call out to the database and hydrate that instance for you.

Answer 2

1. Class members should ever be private!
2. If your object is attached to the Hibernate Session, you're working on a proxy. So, if you like to access your class member directly (which is bad!), you have to detach the object first.

Answer 3

Because b field is transient.

Is there any need for it to be transient? Try removing it.