[Hibernate] Can I put common fields in a Base Class?

[Raible, M. <Mat...@ca...>]

I apologize for the cross-post, but I feel this applies to both Hibernate
and XDoclet.  If I should only post to one list in the future - let me know
which one is appropriate.

I have four common audit fields in a number of my classes:

    private String createdBy;
    private Date dateCreated;
    private String changedBy;
    private Date dateChanged;

Can I put these in a BaseObject class and somehow use it with
Hibernate/XDoclet, or do I need to specify these in each class?

Thanks,

Matt