/**
* Returns whether the characteristic is null or equals parent's or not.
*
* @param \Ekyna\Component\Characteristics\Model\CharacteristicInterface $characteristic
* @return bool
*/
private function isNullOrEqualsParentData(CharacteristicInterface $characteristic)
{
if ($characteristic->isNull()) {
return true;
} elseif (null !== $this->parentDatas && null !== ($parentCharacteristic = $this->parentDatas->findCharacteristicByIdentifier($characteristic->getIdentifier()))) {
return $parentCharacteristic->equals($characteristic);
}
return false;
}
