11.7.4. Getting Started with Entity Auditing

11.7.4.1. Add Auditing Support to a JPA Entity

JBoss EAP 6 uses entity auditing, through Section 11.7.1, “About Hibernate Envers”, to track the historical changes of a persistent class. This topic covers adding auditing support for a JPA entity.

Procedure 11.8. Add Auditing Support to a JPA Entity

  1. Configure the available auditing parameters to suit the deployment: Section 11.7.5.1, “Configure Envers Parameters”.
  2. Open the JPA entity to be audited.
  3. Import the org.hibernate.envers.Audited interface.
  4. Apply the @Audited annotation to each field or property to be audited, or apply it once to the whole class.

    Example 11.30. Audit Two Fields

    import org.hibernate.envers.Audited;
    
    import javax.persistence.Entity;
    import javax.persistence.Id;
    import javax.persistence.GeneratedValue;
    import javax.persistence.Column;
    
    @Entity
    public class Person {
        @Id
        @GeneratedValue
        private int id;
    
        @Audited
        private String name;
    
        private String surname;
    
        @ManyToOne
        @Audited
        private Address address;
    
        // add getters, setters, constructors, equals and hashCode here
    }
    

    Example 11.31. Audit an entire Class

    import org.hibernate.envers.Audited;
    
    import javax.persistence.Entity;
    import javax.persistence.Id;
    import javax.persistence.GeneratedValue;
    import javax.persistence.Column;
    
    @Entity
    @Audited
    public class Person {
        @Id
        @GeneratedValue
        private int id;
    
        private String name;
    
        private String surname;
    
        @ManyToOne
        private Address address;
    
        // add getters, setters, constructors, equals and hashCode here
    }
    
Result

The JPA entity has been configured for auditing. A table called Entity_AUD will be created to store the historical changes.