Chronostamp adds magic timestamp fields to Models, like Ruby on Rails:

• created_at
• updated_at

• will add timestamp magic fields (created_at and updated_at) in an unobtrusive way.
• will automatically record creation and update timestamps of database objects.
• avoid inheritance coupling just for adding two attributes.
• avoid to write @MappedSuperclass for every single model.

See full documentation for more information.