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<?php
/**
* Dummy object caching.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
* http://www.gnu.org/copyleft/gpl.html
*
* @file
* @ingroup Cache
*/
/**
* A BagOStuff object with no objects in it. Used to provide a no-op object to calling code.
*
* @ingroup Cache
*/
class EmptyBagOStuff extends BagOStuff {
protected function doGet( $key, $flags = 0 ) {
return false;
}
public function add( $key, $value, $exp = 0 ) {
return true;
}
public function set( $key, $value, $exp = 0, $flags = 0 ) {
return true;
}
public function delete( $key ) {
return true;
}
public function merge( $key, callable $callback, $exptime = 0, $attempts = 10, $flags = 0 ) {
return true; // faster
}
}
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