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| <?php | |
| /** | |
| * @file | |
| * Contains \Drupal\Core\Config\StorageInterface. | |
| */ | |
| namespace Drupal\Core\Config; | |
| /** | |
| * Defines an interface for configuration storage. | |
| * | |
| * Classes implementing this interface allow reading and writing configuration | |
| * data from and to the storage. | |
| */ | |
| interface StorageInterface { | |
| /** | |
| * The default collection name. | |
| */ | |
| const DEFAULT_COLLECTION = ''; | |
| /** | |
| * Returns whether a configuration object exists. | |
| * | |
| * @param string $name | |
| * The name of a configuration object to test. | |
| * | |
| * @return bool | |
| * TRUE if the configuration object exists, FALSE otherwise. | |
| */ | |
| public function exists($name); | |
| /** | |
| * Reads configuration data from the storage. | |
| * | |
| * @param string $name | |
| * The name of a configuration object to load. | |
| * | |
| * @return array|bool | |
| * The configuration data stored for the configuration object name. If no | |
| * configuration data exists for the given name, FALSE is returned. | |
| */ | |
| public function read($name); | |
| /** | |
| * Reads configuration data from the storage. | |
| * | |
| * @param array $names | |
| * List of names of the configuration objects to load. | |
| * | |
| * @return array | |
| * A list of the configuration data stored for the configuration object name | |
| * that could be loaded for the passed list of names. | |
| */ | |
| public function readMultiple(array $names); | |
| /** | |
| * Writes configuration data to the storage. | |
| * | |
| * @param string $name | |
| * The name of a configuration object to save. | |
| * @param array $data | |
| * The configuration data to write. | |
| * | |
| * @return bool | |
| * TRUE on success, FALSE in case of an error. | |
| * | |
| * @throws \Drupal\Core\Config\StorageException | |
| * If the back-end storage does not exist and cannot be created. | |
| */ | |
| public function write($name, array $data); | |
| /** | |
| * Deletes a configuration object from the storage. | |
| * | |
| * @param string $name | |
| * The name of a configuration object to delete. | |
| * | |
| * @return bool | |
| * TRUE on success, FALSE otherwise. | |
| */ | |
| public function delete($name); | |
| /** | |
| * Renames a configuration object in the storage. | |
| * | |
| * @param string $name | |
| * The name of a configuration object to rename. | |
| * @param string $new_name | |
| * The new name of a configuration object. | |
| * | |
| * @return bool | |
| * TRUE on success, FALSE otherwise. | |
| */ | |
| public function rename($name, $new_name); | |
| /** | |
| * Encodes configuration data into the storage-specific format. | |
| * | |
| * @param array $data | |
| * The configuration data to encode. | |
| * | |
| * @return string | |
| * The encoded configuration data. | |
| * | |
| * This is a publicly accessible static method to allow for alternative | |
| * usages in data conversion scripts and also tests. | |
| */ | |
| public function encode($data); | |
| /** | |
| * Decodes configuration data from the storage-specific format. | |
| * | |
| * @param string $raw | |
| * The raw configuration data string to decode. | |
| * | |
| * @return array | |
| * The decoded configuration data as an associative array. | |
| * | |
| * This is a publicly accessible static method to allow for alternative | |
| * usages in data conversion scripts and also tests. | |
| */ | |
| public function decode($raw); | |
| /** | |
| * Gets configuration object names starting with a given prefix. | |
| * | |
| * Given the following configuration objects: | |
| * - node.type.article | |
| * - node.type.page | |
| * | |
| * Passing the prefix 'node.type.' will return an array containing the above | |
| * names. | |
| * | |
| * @param string $prefix | |
| * (optional) The prefix to search for. If omitted, all configuration object | |
| * names that exist are returned. | |
| * | |
| * @return array | |
| * An array containing matching configuration object names. | |
| */ | |
| public function listAll($prefix = ''); | |
| /** | |
| * Deletes configuration objects whose names start with a given prefix. | |
| * | |
| * Given the following configuration object names: | |
| * - node.type.article | |
| * - node.type.page | |
| * | |
| * Passing the prefix 'node.type.' will delete the above configuration | |
| * objects. | |
| * | |
| * @param string $prefix | |
| * (optional) The prefix to search for. If omitted, all configuration | |
| * objects that exist will be deleted. | |
| * | |
| * @return bool | |
| * TRUE on success, FALSE otherwise. | |
| */ | |
| public function deleteAll($prefix = ''); | |
| /** | |
| * Creates a collection on the storage. | |
| * | |
| * A configuration storage can contain multiple sets of configuration objects | |
| * in partitioned collections. The collection name identifies the current | |
| * collection used. | |
| * | |
| * Implementations of this method must provide a new instance to avoid side | |
| * effects caused by the fact that Config objects have their storage injected. | |
| * | |
| * @param string $collection | |
| * The collection name. Valid collection names conform to the following | |
| * regex [a-zA-Z_.]. A storage does not need to have a collection set. | |
| * However, if a collection is set, then storage should use it to store | |
| * configuration in a way that allows retrieval of configuration for a | |
| * particular collection. | |
| * | |
| * @return \Drupal\Core\Config\StorageInterface | |
| * A new instance of the storage backend with the collection set. | |
| */ | |
| public function createCollection($collection); | |
| /** | |
| * Gets the existing collections. | |
| * | |
| * A configuration storage can contain multiple sets of configuration objects | |
| * in partitioned collections. The collection key name identifies the current | |
| * collection used. | |
| * | |
| * @return array | |
| * An array of existing collection names. | |
| */ | |
| public function getAllCollectionNames(); | |
| /** | |
| * Gets the name of the current collection the storage is using. | |
| * | |
| * @return string | |
| * The current collection name. | |
| */ | |
| public function getCollectionName(); | |
| } |