76 lines
2.1 KiB
PHP
76 lines
2.1 KiB
PHP
<?php
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/**
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* Remember the page that was previously loaded.
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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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namespace MediaWiki\Cache;
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use BacklinkCache;
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use MediaWiki\HookContainer\HookContainer;
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use MediaWiki\Page\PageReference;
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use WANObjectCache;
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/**
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* @since 1.37
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*/
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class BacklinkCacheFactory {
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/** @var BacklinkCache */
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private $latestBacklinkCache;
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/** @var WANObjectCache */
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private $wanCache;
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/** @var HookContainer */
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private $hookContainer;
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/**
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* @param WANObjectCache $wanCache
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* @param HookContainer $hookContainer
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*/
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public function __construct(
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WANObjectCache $wanCache,
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HookContainer $hookContainer
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) {
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$this->wanCache = $wanCache;
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$this->hookContainer = $hookContainer;
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}
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/**
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* Returns a BacklinkCache for $page. May re-use previously
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* created instances.
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*
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* Currently, only one cache instance can exist; callers that
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* need multiple backlink cache objects should keep them in scope.
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*
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* @param PageReference $page Page to get a backlink cache for
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* @return BacklinkCache
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*/
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public function getBacklinkCache( PageReference $page ): BacklinkCache {
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if ( !$this->latestBacklinkCache || !$this->latestBacklinkCache->getPage()->isSamePageAs( $page ) ) {
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$this->latestBacklinkCache = new BacklinkCache(
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$this->wanCache,
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$this->hookContainer,
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$page
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);
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}
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return $this->latestBacklinkCache;
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}
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}
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