function ContextDefinitionInterface::isAllowedNull
Determines if the context value is allowed to be NULL.
Return value
bool TRUE if NULL values are allowed, FALSE otherwise.
2 methods override ContextDefinitionInterface::isAllowedNull()
- ContextDefinition::isAllowedNull in src/
Context/ ContextDefinition.php - Determines if the context value is allowed to be NULL.
- EntityContextDefinition::isAllowedNull in src/
Context/ EntityContextDefinition.php - Determines if the context value is allowed to be NULL.
File
-
src/
Context/ ContextDefinitionInterface.php, line 29
Class
- ContextDefinitionInterface
- Context definition information required by Rules.
Namespace
Drupal\rules\ContextCode
public function isAllowedNull();