public function visitId(SpecificationInterface $specification, SpecificationWalker $walker, $query)
 {
     $query->field('_id')->equals($specification->getId());
 }
 public function visitId(SpecificationInterface $specification, SpecificationWalker $walker, $query)
 {
     $query->expr()->eq('id', $specification->getId());
 }
 public function visitId(SpecificationInterface $specification, SpecificationWalker $walker, $query)
 {
     $this->andWhere($query, '=', 'id', $specification->getId());
 }