6 Replies Latest reply on May 14, 2011 12:00 PM by adamw

Audit subclass that extends non-audited superclass

izan May 4, 2011 7:09 AM

Hi all,

I've got a MappingException when I try to audit an entity (VersionedEntity) that extends an abstract entity (BaseEntity) that is not audited. the inheritance strategy is TABLE_PER_CLASS, and I've tried to set this strategy also in the subclass (I've read something about that in the forums) with same result.

Is there a way to set auditing in a subclass that extends a superclass that is not audited? What am I missing? Here are the versions used:

Envers: 1.2.3-hibernate-3.3
Hibernate-core: 3.3.1 GA
Hibernate-annotations: 3.4.0 GA
JBoss: 5.1.0.GA

and this is the exception:

Caused by: org.hibernate.MappingException: Entity 'VersionedEntity' is audited, but its superclass: 'BaseEntity' is not.

at org.hibernate.envers.configuration.metadata.AuditMetadataGenerator.generateInheritanceMappingData(AuditMetadataGenerator.java:327)

at org.hibernate.envers.configuration.metadata.AuditMetadataGenerator.generateFirstPass(AuditMetadataGenerator.java:408)

at org.hibernate.envers.configuration.EntitiesConfigurator.configure(EntitiesConfigurator.java:100)

at org.hibernate.envers.configuration.AuditConfiguration.<init>(AuditConfiguration.java:86)

at org.hibernate.envers.configuration.AuditConfiguration.getFor(AuditConfiguration.java:99)

at org.hibernate.envers.event.AuditEventListener.initialize(AuditEventListener.java:335)

at org.hibernate.event.EventListeners$1.processListener(EventListeners.java:198)

at org.hibernate.event.EventListeners.processListeners(EventListeners.java:181)

at org.hibernate.event.EventListeners.initializeListeners(EventListeners.java:194)

I've dome some searching and couldn't not find a way to do it, but maybe I didn't search very well. Any help greatly appreciated!
Izan.

1. Audit subclass that extends non-audited superclass

adamw May 12, 2011 3:42 AM (in response to izan)

So you don't want to audit any of the fields from the base entity? (Apart from the id, which must be audited)
If so, there's a feature request to implement that, but it's not yet done.

Adam
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2. Re: Audit subclass that extends non-audited superclass

izan May 12, 2011 4:37 AM (in response to izan)

Here is a code example of the abstract entity:

 
@javax.persistence.Entity
@Inheritance(strategy=InheritanceType.TABLE_PER_CLASS)
public abstract class Entity<ID extends Serializable>
  implements Serializable
{
 
  @Id
  @Column(nullable=false)
  @GeneratedValue(strategy=GenerationType.TABLE)
  private Long id;
 
  public Long getId()
  {
    return this.id;
  }
 
  public void setId(Long id) {
    this.id = id;
  }
 
  public abstract ID getBusinessKey();
}

And here is the code for a subclass:

@javax.persistence.Entity
@SuppressWarnings("serial")
@Audited
public class TestClass extends Entity<String>{
 
 
    @Column(nullable = false)
    private String name;
 
    @Column(nullable = false)
    private Integer value;
 
 
    public void setName(String name) {
        this.name = name;
    }
 
    public String getName() {
        return name;
    }
 
    public void setValue(Integer value) {
        this.value = value;
    }
 
    public Integer getValue() {
        return value;
    }
 
    ......
     Some overrides here
    ......  
}

This, when deployed, throws the following exception

Caused by: org.hibernate.HibernateException: could not init listeners

at org.hibernate.event.EventListeners.initializeListeners(EventListeners.java:205)

at org.hibernate.cfg.Configuration.getInitializedEventListeners(Configuration.java:1338)

at org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:1327)

at org.hibernate.cfg.AnnotationConfiguration.buildSessionFactory(AnnotationConfiguration.java:867)

at org.hibernate.ejb.Ejb3Configuration.buildEntityManagerFactory(Ejb3Configuration.java:669)

... 57 more

Caused by: org.hibernate.MappingException: Entity 'com.model.entity.TestClass' is audited, but its superclass: 'com.model.entity.Entity' is not.