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<?php
/**
 * ownCloud
 *
 * @author Thomas Müller
 * @copyright 2013 Thomas Müller deepdiver@owncloud.com
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU AFFERO GENERAL PUBLIC LICENSE
 * License as published by the Free Software Foundation; either
 * version 3 of the License, or any later version.
 *
 * This library 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 along with this library.  If not, see <http://www.gnu.org/licenses/>.
 *
 */

/**
 * Public interface of ownCloud for apps to use.
 * Container interface
 *
 */

// 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);
}