/**
  * @param QOM\SameNodeInterface $constraint
  *
  * @return string
  */
 public function walkSameNodeConstraint(QOM\SameNodeInterface $constraint)
 {
     return $this->getTableAlias($constraint->getSelectorName()) . ".path = '" . $constraint->getPath() . "'";
 }
 private function walkSameNodeConstraint(QOM\SameNodeInterface $constraint)
 {
     $selectorName = $constraint->getSelectorName();
     $path = $constraint->getPath();
     return sprintf('%s:%s', $this->escape(ZendSearchAdapter::IDX_PATH), $path);
 }