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POHow not to audit a join table and related entities using Hibernate Envers?
 

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  1. POHow not to audit a join table and related entities using Hibernate Envers?
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    <p>I use Hibernate Envers to audit my entities.</p> <p>I have one audited entity, <code>Foo</code>, which has a <code>List&lt;Bar&gt;</code> as properties. However, I don't want to audit the <code>Bar</code> entities. Thus, I wrote that:</p> <pre><code>@Entity @Audited public class Foo { @JoinTable(name = "T_FOO_BAR", joinColumns = @JoinColumn(name = "FOO_ID"), inverseJoinColumns = @JoinColumn(name = "BAR_ID")) @ManyToMany(cascade = PERSIST) @Audited(targetAuditMode = RelationTargetAuditMode.NOT_AUDITED) public List&lt;Bar&gt; getBars() { return bars; } } </code></pre> <p>Now, I want to retrieve a revision of <code>Foo</code>:</p> <pre><code> AuditReader reader = AuditReaderFactory.get(getEntityManager()); Foo revision = (Foo) reader.createQuery().forEntitiesAtRevision(Foo.class, 42).getSingleResult(); </code></pre> <p>Unfortunately, when I want to retrieve all the data (i.e. when it lazy loads the <code>bars</code>), I get the error <code>ORA-00942: table or view does not exist</code>, as it tried to query:</p> <pre><code>select ... from T_FOO_BAR_AUD x, T_BAR y where ... </code></pre> <p>I though that using <code>@Audited(targetAuditMode = RelationTargetAuditMode.NOT_AUDITED)</code>, Hibernate Envers would keep the links with the <code>Bar</code> items of the <em>current</em> entity.</p> <p>So how can I solve my problem, without having to explicitely audit the tables <code>T_BAR</code> and <code>T_FOO_BAR</code> (the join table)? In others words, when I retrieve the list of <code>bars</code> from my revision entity, I get the list of <code>bars</code> from my current entity (as the links between <code>Foo</code> and <code>Bar</code> are not audited).</p> <p>Thanks.</p>
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