public Condition::exists($field, $langcode

public QueryFactory::__construct(ConfigFactoryInterface

Defines the entity query for configuration entities. Hierarchy class \Drupal\Core\Entity\Query\

Information about the entity type. Type:

public Query::execute() Execute the

Provides a factory for creating entity query objects for the config backend. Hierarchy class

public Condition::notExists($field, $langcode

protected QueryFactory::getKeys(Config $config, $key, $get_method

Defines the condition class for the config entity query. Hierarchy class \Drupal\

static QueryFactory::getSubscribedEvents()