83 lines
2.4 KiB
PHP
83 lines
2.4 KiB
PHP
<?php
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/**
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* Cache of various elements in a single cache entry.
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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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* @license GPL-2.0-or-later
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* @author Jeroen De Dauw < jeroendedauw@gmail.com >
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*/
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/**
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* Interface for all classes implementing CacheHelper functionality.
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*
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* @since 1.20
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*/
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interface ICacheHelper {
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/**
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* Sets if the cache should be enabled or not.
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*
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* @since 1.20
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* @param bool $cacheEnabled
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*/
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function setCacheEnabled( $cacheEnabled );
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/**
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* Initializes the caching.
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* Should be called before the first time anything is added via addCachedHTML.
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*
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* @since 1.20
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*
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* @param int|null $cacheExpiry Sets the cache expiry, either ttl in seconds or unix timestamp.
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* @param bool|null $cacheEnabled Sets if the cache should be enabled or not.
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*/
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function startCache( $cacheExpiry = null, $cacheEnabled = null );
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/**
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* Get a cached value if available or compute it if not and then cache it if possible.
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* The provided $computeFunction is only called when the computation needs to happen
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* and should return a result value. $args are arguments that will be passed to the
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* compute function when called.
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*
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* @since 1.20
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*
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* @param callable $computeFunction
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* @param array|mixed $args
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* @param string|null $key
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*
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* @return mixed
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*/
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function getCachedValue( $computeFunction, $args = [], $key = null );
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/**
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* Saves the HTML to the cache in case it got recomputed.
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* Should be called after the last time anything is added via addCachedHTML.
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*
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* @since 1.20
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*/
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function saveCache();
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/**
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* Sets the time to live for the cache, in seconds or a unix timestamp
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* indicating the point of expiry...
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*
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* @since 1.20
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*
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* @param int $cacheExpiry
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*/
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function setExpiry( $cacheExpiry );
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}
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