Collection::getDataEntityCollection

public function getDataEntityCollection(): ORMObjectifyCollection
{
	if ($this->dataEntityCollection === null)
	{
		/** @var DataManager $dataClass */
		$dataClass = static::getDataClass();
		/** @var ORMObjectifyCollection $entityCollectionClass */
		$entityCollectionClass = $dataClass::getCollectionClass();
		$this->dataEntityCollection = new $entityCollectionClass;
	}

	return $this->dataEntityCollection;
}