0 Replies Latest reply on Sep 6, 2013 8:16 AM by marx3

How to build query for element of DefaultTrackingModifiedEntitiesRevisionEntity

marx3 Sep 6, 2013 8:16 AM

Hello

I've made CustomRevisionEntity (setters/getters skipped):

@Entity

@RevisionEntity(CustomRevisionListener.class)

public class CustomRevisionEntity extends DefaultTrackingModifiedEntitiesRevisionEntity {

private static final long serialVersionUID = 1L;

@ManyToOne

@JoinColumn(name = "USER_ID")

private User user;

}

Now I'm trying to build query to filter CustomRevisionEntity by audited class (I have more filters, but others works ok, so I skipped them):

	CriteriaBuilder cb = dataRepository.getCriteriaBuilder();
	CriteriaQuery<CustomRevisionEntity> criteriaQuery = cb.createQuery(CustomRevisionEntity.class);
	Root<CustomRevisionEntity> root = criteriaQuery.from(CustomRevisionEntity.class);

	PluralAttribute<CustomRevisionEntity, Set<String>, String> attr = CustomRevisionEntity_.modifiedEntityNames;
	Predicate restriction = cb.and(restriction, root.get(attr).in(selectedClass));

It doesn't compile, because attr is defined in DefaultTrackingModifiedEntitiesRevisionEntity as:

SetAttribute<DefaultTrackingModifiedEntitiesRevisionEntity, String> modifiedEntityNames

and there is no possibility to cast from SetAttribute<DefaultTrackingModifiedEntitiesRevisionEntity, String> to SetAttribute<CustomRevisionEntity, String>.

It seems that inheritance doesn't work for it.

Any idea what's wrong?

I've tried to skip metamodel usage and use:

Predicate restriction = cb.and(restriction, root.get("modifiedEntityNames").in(selectedClass));

While it compile properly, there is an error in runtime:

org.hibernate.MappingException: Unknown collection role: org.hibernate.envers.DefaultTrackingModifiedEntitiesRevisionEntity.modifiedEntityNames

at org.hibernate.internal.SessionFactoryImpl.getCollectionPersister(SessionFactoryImpl.java:1149) [hibernate-core-4.2.0.CR1.jar:4.2.0.CR1]

at org.hibernate.ejb.criteria.path.PluralAttributePath.resolvePersister(PluralAttributePath.java:58) [hibernate-entitymanager-4.2.0.CR1.jar:4.2.0.CR1]

at org.hibernate.ejb.criteria.path.PluralAttributePath.<init>(PluralAttributePath.java:52) [hibernate-entitymanager-4.2.0.CR1.jar:4.2.0.CR1]

at org.hibernate.ejb.criteria.path.AbstractPathImpl.get(AbstractPathImpl.java:166) [hibernate-entitymanager-4.2.0.CR1.jar:4.2.0.CR1]

at org.hibernate.ejb.criteria.path.AbstractPathImpl.get(AbstractPathImpl.java:208) [hibernate-entitymanager-4.2.0.CR1.jar:4.2.0.CR1]

at pl.wasko.core.audit.RevisionDAO.getPredicate(RevisionDAO.java:337) [c2-jar-1.2.136-SNAPSHOT.jar:]

at pl.wasko.core.audit.RevisionDAO.findRevisions(RevisionDAO.java:283) [c2-jar-1.2.136-SNAPSHOT.jar:]

at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) [rt.jar:1.7.0_25]

at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) [rt.jar:1.7.0_25]

at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) [rt.jar:1.7.0_25]

at java.lang.reflect.Method.invoke(Method.java:606) [rt.jar:1.7.0_25]

at org.jboss.as.ee.component.ManagedReferenceMethodInterceptorFactory$ManagedReferenceMethodInterceptor.processInvocation(ManagedReferenceMethodInterceptorFactory.java:72) [jboss-as-ee-7.2.0.Final.jar:7.2.0.Final]