70547f3fa3
* Update documentation about relay methods. * Change interim key set() to add() to avoid broadcasting it. * Remove the behavior of doing purges synchronously in the local DC first before relay. In both the event relayer and mcrouter case, they will be asynchronous. It was hardly even possible to use such behavior since loads come from slave DBs, which do not see changes right after COMMIT. Bug: T97562 Change-Id: I7759c82ae6e1b72fc227882a99c9a712a46374f6
49 lines
1.4 KiB
PHP
49 lines
1.4 KiB
PHP
<?php
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/**
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* Dummy object caching.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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* http://www.gnu.org/copyleft/gpl.html
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*
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* @file
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* @ingroup Cache
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*/
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/**
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* A BagOStuff object with no objects in it. Used to provide a no-op object to calling code.
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*
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* @ingroup Cache
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*/
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class EmptyBagOStuff extends BagOStuff {
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protected function doGet( $key, $flags = 0 ) {
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return false;
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}
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public function add( $key, $value, $exp = 0 ) {
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return true;
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}
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public function set( $key, $value, $exp = 0, $flags = 0 ) {
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return true;
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}
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public function delete( $key ) {
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return true;
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}
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public function merge( $key, callable $callback, $exptime = 0, $attempts = 10, $flags = 0 ) {
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return true; // faster
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}
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}
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