interface StateInterface in Drupal 9

Defines the interface for the state system.

Hierarchy

• interface \Drupal\Core\State\StateInterface

Related topics

State API

Information about the State API.

74 files declare their use of StateInterface

AliasWhitelist.php in core/modules/path_alias/src/AliasWhitelist.php

AutomatedCron.php in core/modules/automated_cron/src/EventSubscriber/AutomatedCron.php

BrokenInboundPathProcessor.php in core/modules/system/tests/modules/update_script_test/src/PathProcessor/BrokenInboundPathProcessor.php

CacheableMetadataCalculationTest.php in core/modules/views/tests/modules/views_test_cacheable_metadata_calculation/src/Plugin/views/access/CacheableMetadataCalculationTest.php

CKEditor.php in core/modules/ckeditor/src/Plugin/Editor/CKEditor.php

... See full list

File

core/lib/Drupal/Core/State/StateInterface.php, line 10

Namespace

Drupal\Core\State

interface StateInterface {

  /**
   * Returns the stored value for a given key.
   *
   * @param string $key
   *   The key of the data to retrieve.
   * @param mixed $default
   *   The default value to use if the key is not found.
   *
   * @return mixed
   *   The stored value, or NULL if no value exists.
   */
  public function get($key, $default = NULL);

  /**
   * Returns the stored key/value pairs for a given set of keys.
   *
   * @param array $keys
   *   A list of keys to retrieve.
   *
   * @return array
   *   An associative array of items successfully returned, indexed by key.
   */
  public function getMultiple(array $keys);

  /**
   * Saves a value for a given key.
   *
   * @param string $key
   *   The key of the data to store.
   * @param mixed $value
   *   The data to store.
   */
  public function set($key, $value);

  /**
   * Saves key/value pairs.
   *
   * @param array $data
   *   An associative array of key/value pairs.
   */
  public function setMultiple(array $data);

  /**
   * Deletes an item.
   *
   * @param string $key
   *   The item name to delete.
   */
  public function delete($key);

  /**
   * Deletes multiple items.
   *
   * @param array $keys
   *   A list of item names to delete.
   */
  public function deleteMultiple(array $keys);

  /**
   * Resets the static cache.
   *
   * This is mainly used in testing environments.
   */
  public function resetCache();

}

Members

Name	Modifiers	Type	Description	Overrides
StateInterface::delete	public	function	Deletes an item.	1
StateInterface::deleteMultiple	public	function	Deletes multiple items.	1
StateInterface::get	public	function	Returns the stored value for a given key.	1
StateInterface::getMultiple	public	function	Returns the stored key/value pairs for a given set of keys.	1
StateInterface::resetCache	public	function	Resets the static cache.	1
StateInterface::set	public	function	Saves a value for a given key.	1
StateInterface::setMultiple	public	function	Saves key/value pairs.	1