includes/objectcache/EmptyBagOStuff.php

   1 <?php
   2 /**
   3  * Dummy object caching.
   4  *
   5  * This program is free software; you can redistribute it and/or modify
   6  * it under the terms of the GNU General Public License as published by
   7  * the Free Software Foundation; either version 2 of the License, or
   8  * (at your option) any later version.
   9  *
  10  * This program is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  13  * GNU General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU General Public License along
  16  * with this program; if not, write to the Free Software Foundation, Inc.,
  17  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  18  * http://www.gnu.org/copyleft/gpl.html
  19  *
  20  * @file
  21  * @ingroup Cache
  22  */
  23
  24 /**
  25  * A BagOStuff object with no objects in it. Used to provide a no-op object to calling code.
  26  *
  27  * @ingroup Cache
  28  */
  29 class EmptyBagOStuff extends BagOStuff {
  30
  31         /**
  32          * @param $key string
  33          * @return bool
  34          */
  35         function get( $key ) {
  36                 return false;
  37         }
  38
  39         /**
  40          * @param $key string
  41          * @param $value mixed
  42          * @param $exp int
  43          * @return bool
  44          */
  45         function set( $key, $value, $exp = 0 ) {
  46                 return true;
  47         }
  48
  49         /**
  50          * @param $key string
  51          * @param $time int
  52          * @return bool
  53          */
  54         function delete( $key, $time = 0 ) {
  55                 return true;
  56         }
  57 }
  58
  59 /**
  60  * Backwards compatibility alias for EmptyBagOStuff
  61  * @deprecated since 1.18
  62  */
  63 class FakeMemCachedClient extends EmptyBagOStuff {
  64 }