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<?php
/**
 * @author Morris Jobke <hey@morrisjobke.de>
 * @author Thomas Müller <thomas.mueller@tmit.eu>
 *
 * @copyright Copyright (c) 2015, ownCloud, Inc.
 * @license AGPL-3.0
 *
 * This code is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Affero General Public License, version 3,
 * as published by the Free Software Foundation.
 *
 * 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 Affero General Public License for more details.
 *
 * You should have received a copy of the GNU Affero General Public License, version 3,
 * along with this program.  If not, see <http://www.gnu.org/licenses/>
 *
 */
// use OCP namespace for all classes that are considered public.
// This means that they should be used by apps instead of the internal ownCloud classes
namespace OCP;

/**
 * Class IContainer
 *
 * IContainer is the basic interface to be used for any internal dependency injection mechanism
 *
 * @package OCP
 */
interface IContainer {

	/**
	 * Look up a service for a given name in the container.
	 *
	 * @param string $name
	 * @return mixed
	 */
	function query($name);

	/**
	 * A value is stored in the container with it's corresponding name
	 *
	 * @param string $name
	 * @param mixed $value
	 * @return void
	 */
	function registerParameter($name, $value);

	/**
	 * A service is registered in the container where a closure is passed in which will actually
	 * create the service on demand.
	 * In case the parameter $shared is set to true (the default usage) the once created service will remain in
	 * memory and be reused on subsequent calls.
	 * In case the parameter is false the service will be recreated on every call.
	 *
	 * @param string $name
	 * @param \Closure $closure
	 * @param bool $shared
	 * @return void
	 */
	function registerService($name, \Closure $closure, $shared = true);
}