getUpdateBacklog example

            $this->queue[] = $backlog;
        }

        // Entity Insertions         foreach ($uow->getScheduledEntityInsertions() as $entity) {
            $this->inserts[] = $entity;
        }

        // Entity updates         foreach ($uow->getScheduledEntityUpdates() as $entity) {
            $backlog = $this->getUpdateBacklog($entity);
            if (!$backlog) {
                continue;
            }
            $this->queue[] = $backlog;
        }
    }

    public function postFlush(PostFlushEventArgs $eventArgs)
    {
        foreach ($this->inserts as $entity) {
            $backlog = $this->getInsertBacklog($entity);