/**
  * @param ProxyQueryInterface|QueryBuilder $queryBuilder
  * @param mixed                            $parameter
  */
 protected function applyWhere(ProxyQueryInterface $queryBuilder, $parameter)
 {
     if ($this->getCondition() == self::CONDITION_OR) {
         $queryBuilder->orWhere($parameter);
     } else {
         $queryBuilder->andWhere($parameter);
     }
     // filter is active since it's added to the queryBuilder
     $this->active = true;
 }