90 lines
3.1 KiB
PHP
90 lines
3.1 KiB
PHP
<?php
|
|
/*
|
|
+--------------------------------------------------------------------+
|
|
| CiviCRM version 4.7 |
|
|
+--------------------------------------------------------------------+
|
|
| Copyright CiviCRM LLC (c) 2004-2017 |
|
|
+--------------------------------------------------------------------+
|
|
| This file is a part of CiviCRM. |
|
|
| |
|
|
| CiviCRM is free software; you can copy, modify, and distribute it |
|
|
| under the terms of the GNU Affero General Public License |
|
|
| Version 3, 19 November 2007 and the CiviCRM Licensing Exception. |
|
|
| |
|
|
| CiviCRM is distributed in the hope that it will be useful, but |
|
|
| WITHOUT ANY WARRANTY; without even the implied warranty of |
|
|
| MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. |
|
|
| See the GNU Affero General Public License for more details. |
|
|
| |
|
|
| You should have received a copy of the GNU Affero General Public |
|
|
| License and the CiviCRM Licensing Exception along |
|
|
| with this program; if not, contact CiviCRM LLC |
|
|
| at info[AT]civicrm[DOT]org. If you have questions about the |
|
|
| GNU Affero General Public License or the licensing of CiviCRM, |
|
|
| see the CiviCRM license FAQ at http://civicrm.org/licensing |
|
|
+--------------------------------------------------------------------+
|
|
*/
|
|
|
|
/**
|
|
*
|
|
* @package CRM
|
|
* @copyright CiviCRM LLC (c) 2004-2017
|
|
*
|
|
* CRM_Utils_Cache_Interface
|
|
*
|
|
* PHP-FIG has been developing a draft standard for caching,
|
|
* PSR-6. The standard has not been ratified yet. When
|
|
* making changes to this interface, please take care to
|
|
* avoid *conflicst* with PSR-6's CacheItemPoolInterface. At
|
|
* time of writing, they do not conflict. Avoiding conflicts
|
|
* will enable more transition paths where Civi
|
|
* simultaneously supports both interfaces in the same
|
|
* implementation.
|
|
*
|
|
* For example, the current interface defines:
|
|
*
|
|
* function get($key) => mixed $value
|
|
*
|
|
* and PSR-6 defines:
|
|
*
|
|
* function getItem($key) => ItemInterface $item
|
|
*
|
|
* These are different styles (e.g. "weak item" vs "strong item"),
|
|
* but the two methods do not *conflict*. They can coexist,
|
|
* and you can trivially write adapters between the two.
|
|
*
|
|
* @see https://github.com/php-fig/fig-standards/blob/master/proposed/cache.md
|
|
*/
|
|
interface CRM_Utils_Cache_Interface {
|
|
|
|
/**
|
|
* Set the value in the cache.
|
|
*
|
|
* @param string $key
|
|
* @param mixed $value
|
|
*/
|
|
public function set($key, &$value);
|
|
|
|
/**
|
|
* Get a value from the cache.
|
|
*
|
|
* @param string $key
|
|
* @return mixed
|
|
* NULL if $key has not been previously set
|
|
*/
|
|
public function get($key);
|
|
|
|
/**
|
|
* Delete a value from the cache.
|
|
*
|
|
* @param string $key
|
|
*/
|
|
public function delete($key);
|
|
|
|
/**
|
|
* Delete all values from the cache.
|
|
*/
|
|
public function flush();
|
|
|
|
}
|