<?php /* * This file is part of SwiftMailer. * (c) 2004-2009 Chris Corbyn * * For the full copyright and license information, please view the LICENSE * file that was distributed with this source code. */ /** * Allows StreamFilters to operate on a stream. * * @author Chris Corbyn */ interface Swift_Filterable { /** * Add a new StreamFilter, referenced by $key. * * @param string $key */ public function addFilter(Swift_StreamFilter $filter, $key); /** * Remove an existing filter using $key. * * @param string $key */ public function removeFilter($key); }