public virtual void OnDelete(DeleteEvent @event, ISet <object> transientEntities)
{
IEventSource source = @event.Session;
IPersistenceContext persistenceContext = source.PersistenceContext;
object entity = persistenceContext.UnproxyAndReassociate(@event.Entity);
EntityEntry entityEntry = persistenceContext.GetEntry(entity);
IEntityPersister persister;
object id;
object version;
if (entityEntry == null)
{
log.Debug("entity was not persistent in delete processing");
persister = source.GetEntityPersister(@event.EntityName, entity);
if (ForeignKeys.IsTransientSlow(persister.EntityName, entity, source))
{
DeleteTransientEntity(source, entity, @event.CascadeDeleteEnabled, persister, transientEntities);
// EARLY EXIT!!!
return;
}
else
{
PerformDetachedEntityDeletionCheck(@event);
}
id = persister.GetIdentifier(entity);
if (id == null)
{
throw new TransientObjectException("the detached instance passed to delete() had a null identifier");
}
EntityKey key = source.GenerateEntityKey(id, persister);
persistenceContext.CheckUniqueness(key, entity);
new OnUpdateVisitor(source, id, entity).Process(entity, persister);
version = persister.GetVersion(entity);
entityEntry = persistenceContext.AddEntity(
entity,
persister.IsMutable ? Status.Loaded : Status.ReadOnly,
persister.GetPropertyValues(entity),
key,
version,
LockMode.None,
true,
persister,
false);
}
else
{
log.Debug("deleting a persistent instance");
if (entityEntry.Status == Status.Deleted || entityEntry.Status == Status.Gone)
{
log.Debug("object was already deleted");
return;
}
persister = entityEntry.Persister;
id = entityEntry.Id;
version = entityEntry.Version;
}
if (InvokeDeleteLifecycle(source, entity, persister))
{
return;
}
DeleteEntity(source, entity, entityEntry, @event.CascadeDeleteEnabled, persister, transientEntities);
if (source.Factory.Settings.IsIdentifierRollbackEnabled)
{
persister.ResetIdentifier(entity, id, version);
}
}
