Examples with PersistentCollectionChangeWorkUnit org.hibernate.envers.internal.synchronization.work.PersistentCollectionChangeWorkUnit used on opensource projects

Example 1 with PersistentCollectionChangeWorkUnit

use of org.hibernate.envers.internal.synchronization.work.PersistentCollectionChangeWorkUnit in project hibernate-orm by hibernate.

the class BaseEnversCollectionEventListener method generateBidirectionalCollectionChangeWorkUnits.

private void generateBidirectionalCollectionChangeWorkUnits(AuditProcess auditProcess, AbstractCollectionEvent event, PersistentCollectionChangeWorkUnit workUnit, RelationDescription rd) {
    // Checking if this is enabled in configuration ...
    if (!getEnversService().getGlobalConfiguration().isGenerateRevisionsForCollections()) {
        return;
    }
    // relDesc can be null if this is a collection of simple values (not a relation).
    if (rd != null && rd.isBidirectional()) {
        final String relatedEntityName = rd.getToEntityName();
        final IdMapper relatedIdMapper = getEnversService().getEntitiesConfigurations().get(relatedEntityName).getIdMapper();
        final Set<String> toPropertyNames = getEnversService().getEntitiesConfigurations().getToPropertyNames(event.getAffectedOwnerEntityName(), rd.getFromPropertyName(), relatedEntityName);
        final String toPropertyName = toPropertyNames.iterator().next();
        for (PersistentCollectionChangeData changeData : workUnit.getCollectionChanges()) {
            final Object relatedObj = changeData.getChangedElement();
            final Serializable relatedId = (Serializable) relatedIdMapper.mapToIdFromEntity(relatedObj);
            auditProcess.addWorkUnit(new CollectionChangeWorkUnit(event.getSession(), event.getSession().bestGuessEntityName(relatedObj), toPropertyName, getEnversService(), relatedId, relatedObj));
        }
    }
}

Example 2 with PersistentCollectionChangeWorkUnit

use of org.hibernate.envers.internal.synchronization.work.PersistentCollectionChangeWorkUnit in project hibernate-orm by hibernate.

the class BaseEnversCollectionEventListener method onCollectionAction.

protected final void onCollectionAction(AbstractCollectionEvent event, PersistentCollection newColl, Serializable oldColl, CollectionEntry collectionEntry) {
    if (shouldGenerateRevision(event)) {
        checkIfTransactionInProgress(event.getSession());
        final AuditProcess auditProcess = getEnversService().getAuditProcessManager().get(event.getSession());
        final String entityName = event.getAffectedOwnerEntityName();
        final String ownerEntityName = ((AbstractCollectionPersister) collectionEntry.getLoadedPersister()).getOwnerEntityName();
        final String referencingPropertyName = collectionEntry.getRole().substring(ownerEntityName.length() + 1);
        // Checking if this is not a "fake" many-to-one bidirectional relation. The relation description may be
        // null in case of collections of non-entities.
        final RelationDescription rd = searchForRelationDescription(entityName, referencingPropertyName);
        if (rd != null && rd.getMappedByPropertyName() != null) {
            generateFakeBidirecationalRelationWorkUnits(auditProcess, newColl, oldColl, entityName, referencingPropertyName, event, rd);
        } else {
            final PersistentCollectionChangeWorkUnit workUnit = new PersistentCollectionChangeWorkUnit(event.getSession(), entityName, getEnversService(), newColl, collectionEntry, oldColl, event.getAffectedOwnerIdOrNull(), referencingPropertyName);
            auditProcess.addWorkUnit(workUnit);
            if (workUnit.containsWork()) {
                // There are some changes: a revision needs also be generated for the collection owner
                auditProcess.addWorkUnit(new CollectionChangeWorkUnit(event.getSession(), event.getAffectedOwnerEntityName(), referencingPropertyName, getEnversService(), event.getAffectedOwnerIdOrNull(), event.getAffectedOwnerOrNull()));
                generateBidirectionalCollectionChangeWorkUnits(auditProcess, event, workUnit, rd);
            }
        }
    }
}