protected function getValueOptionsFromEntity($entityNamespace) {
		$targets = $this->objectManager->getRepository($entityNamespace)->findBy([], ['id' => 'ASC']);
		$displayNameGetter = 'get' . ucfirst($entityNamespace::DISPLAY_NAME_PROPERTY);
		$options = [];
		foreach ($targets as $target) {
			$options[$target->getId()] = $target->$displayNameGetter();
		}
	
		return $options;
	}