The specific setting name prefix. The collection name will be prefixed with this constant and used as a setting name. The setting value will

public KeyValueStoreInterface::set($key, $value)

public NullStorageExpirable::deleteAll()

The actual storage of key-value pairs. Type:

public KeyValueExpirableFa

public DatabaseStorageExpirable::__construct($collection

public DatabaseStorageExpirable::has($key)

The database connection. Type:

public KeyValueDatabaseExpir

public MemoryStorage::setIfNotExists($key, $value)