Defines an exception thrown when a configuration entity ID is too long. Hierarchy class

public StorableConfigBase::isNew()

Defines an interface for comparison of configuration storage objects. Hierarchy interface

public StorageInterface::createCollection($collection)

An exception thrown if configuration with the same name already exists. Hierarchy class

The language manager. Type:

public Condition::exists($field, $langcode

public PreExistingConfigException::getExtension()

public QueryFactory::__construct(ConfigFactoryInterface

protected CachedStorage::findByPrefix($prefix)