| EntityTestCompositeConstraint | core/modules/system/tests/modules/entity_test/src/Plugin/Validation/Constraint/EntityTestCompositeConstraint.php | Constraint with multiple fields. | 
          
                  | EntityTestCompositeConstraintValidator | core/modules/system/tests/modules/entity_test/src/Plugin/Validation/Constraint/EntityTestCompositeConstraintValidator.php | Constraint validator for the EntityTestComposite constraint. | 
          
                  | EntityTestDefaultPlugin | core/modules/system/tests/modules/entity_test/src/Plugin/Validation/Constraint/EntityTestDefaultPlugin.php | A dummy constraint for testing \Drupal\Core\Validation\ConstraintFactory. | 
          
                  | EntityTestEntityLevel | core/modules/system/tests/modules/entity_test/src/Plugin/Validation/Constraint/EntityTestEntityLevel.php | Constraint on entity level. | 
          
                  | EntityTestEntityLevelValidator | core/modules/system/tests/modules/entity_test/src/Plugin/Validation/Constraint/EntityTestEntityLevelValidator.php | Constraint validator for the EntityTestEntityLevel constraint. | 
          
                  | FieldWidgetConstraint | core/modules/system/tests/modules/entity_test/src/Plugin/Validation/Constraint/FieldWidgetConstraint.php | Supports validating widget constraints. | 
          
                  | FieldWidgetConstraintValidator | core/modules/system/tests/modules/entity_test/src/Plugin/Validation/Constraint/FieldWidgetConstraintValidator.php | Validates the FieldWidgetConstraint constraint. | 
          
                  | TestValidatedReferenceConstraint | core/modules/system/tests/modules/entity_test/src/Plugin/Validation/Constraint/TestValidatedReferenceConstraint.php | Validates referenced entities. | 
          
                  | TestValidatedReferenceConstraintValidator | core/modules/system/tests/modules/entity_test/src/Plugin/Validation/Constraint/TestValidatedReferenceConstraintValidator.php | Validates referenced entities. |