public function getDealerContactInfoVersions($criteria = null, ConnectionInterface $con = null)
    {
        $partial = $this->collDealerContactInfoVersionsPartial && !$this->isNew();
        if (null === $this->collDealerContactInfoVersions || null !== $criteria  || $partial) {
            if ($this->isNew() && null === $this->collDealerContactInfoVersions) {
                // return empty collection
                $this->initDealerContactInfoVersions();
            } else {
                $collDealerContactInfoVersions = ChildDealerContactInfoVersionQuery::create(null, $criteria)
                    ->filterByDealerContactInfo($this)
                    ->find($con);

                if (null !== $criteria) {
                    if (false !== $this->collDealerContactInfoVersionsPartial && count($collDealerContactInfoVersions)) {
                        $this->initDealerContactInfoVersions(false);

                        foreach ($collDealerContactInfoVersions as $obj) {
                            if (false == $this->collDealerContactInfoVersions->contains($obj)) {
                                $this->collDealerContactInfoVersions->append($obj);
                            }
                        }

                        $this->collDealerContactInfoVersionsPartial = true;
                    }

                    reset($collDealerContactInfoVersions);

                    return $collDealerContactInfoVersions;
                }

                if ($partial && $this->collDealerContactInfoVersions) {
                    foreach ($this->collDealerContactInfoVersions as $obj) {
                        if ($obj->isNew()) {
                            $collDealerContactInfoVersions[] = $obj;
                        }
                    }
                }

                $this->collDealerContactInfoVersions = $collDealerContactInfoVersions;
                $this->collDealerContactInfoVersionsPartial = false;
            }
        }

        return $this->collDealerContactInfoVersions;
    }