class IsNullConstraint

Null constraint.

Overrides the symfony constraint to handle empty Typed Data structures.

Hierarchy

• class \Symfony\Component\Validator\Constraint
  • class \Symfony\Component\Validator\Constraints\IsNull extends \Symfony\Component\Validator\Constraint
    • class \Drupal\Core\Validation\Plugin\Validation\Constraint\IsNullConstraint extends \Symfony\Component\Validator\Constraints\IsNull

Expanded class hierarchy of IsNullConstraint

File

core/lib/Drupal/Core/Validation/Plugin/Validation/Constraint/IsNullConstraint.php, line 14

Namespace

class IsNullConstraint extends IsNull {

}