[Hibernate-JIRA] Created: (HHH-5845) Lazy Loading of audited entites with revision type 'delete'
by Jonas Schlaak (JIRA)
Lazy Loading of audited entites with revision type 'delete'
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Key: HHH-5845
URL: http://opensource.atlassian.com/projects/hibernate/browse/HHH-5845
Project: Hibernate Core
Issue Type: Bug
Components: envers
Affects Versions: 3.5.6
Environment: Hibernate 3.5.6, Oracle 10 DB
Reporter: Jonas Schlaak
Two classes are given, and they are related via a OneToOne relationship:
@Audited
public class MyClass {
@OneToOne
@Cascade(value = CascadeType.ALL)
private MyOtherClass otherClass;
}
@Audited
public class MyOtherClass {
}
The property "org.hibernate.envers.store_data_at_delete" is set to true, and when auditquerying for the deleted objects and initiliazing the otherClass (an entity which is also deleted) property, and ObjectNotFoundExceptions is thrown. It seems that the proxies do not look for deleted entities, because the same query works fine for the entities of revision type 'ADD' and 'MOD'. The code of the query:
AuditQuery queryDeleted = reader.createQuery().forRevisionsOfEntity(
MyClass.class, false, true).add(
AuditEntity.revisionType().eq(RevisionType.DEL));
List queryResult = queryDeleted.getResultList();
List<MyClass> result = new ArrayList<MyClass>();
for (Object object : queryResult) {
Object[] oArray = (Object[]) object;
MyClass c = (MyClass) oArray[0];
Hibernate.initialize(c.getOtherClass());
}
Forum post with Adam Warski's response:
http://community.jboss.org/thread/160939?tstart=0
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11 years, 10 months
[Hibernate-JIRA] Created: (HHH-2951) Restrictions.eq when passed null, should create a NullRestriction
by David Sheldon (JIRA)
Restrictions.eq when passed null, should create a NullRestriction
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Key: HHH-2951
URL: http://opensource.atlassian.com/projects/hibernate/browse/HHH-2951
Project: Hibernate3
Issue Type: Improvement
Components: query-criteria
Affects Versions: 3.2.1
Reporter: David Sheldon
Priority: Trivial
If you create a Restriction using eq, and pass null to it, then the generated SQL is "where foo = null", which always returns false.
The programmer will almost certainly have intended to get "where foo is null".
Ideally, we could change:
public static SimpleExpression eq(String propertyName, Object value) {
return new SimpleExpression(propertyName, value, "=");
}
to
public static SimpleExpression eq(String propertyName, Object value) {
if (value == null) {
return isNull(propertyName);
}
else {
return new SimpleExpression(propertyName, value, "=");
}
}
Unforunately that wont work, as isNull doesn't return a SimpleExpression.
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11 years, 10 months