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ContainerInterface.php
001 <?php
002
003 /*
004 * This file is part of the Symfony package.
005 *
006 * (c) Fabien Potencier <fabien@symfony.com>
007 *
008 * For the full copyright and license information, please view the LICENSE
009 * file that was distributed with this source code.
010 */
011
012 namespace Symfony\Component\DependencyInjection;
013
014 use Psr\Container\ContainerInterface as PsrContainerInterface;
015 use Symfony\Component\DependencyInjection\Exception\InvalidArgumentException;
016 use Symfony\Component\DependencyInjection\Exception\ServiceCircularReferenceException;
017 use Symfony\Component\DependencyInjection\Exception\ServiceNotFoundException;
018
019 /**
020 * ContainerInterface is the interface implemented by service container classes.
021 *
022 * @author Fabien Potencier <fabien@symfony.com>
023 * @author Johannes M. Schmitt <schmittjoh@gmail.com>
024 */
025 interface ContainerInterface extends PsrContainerInterface
026 {
027 const EXCEPTION_ON_INVALID_REFERENCE = 1;
028 const NULL_ON_INVALID_REFERENCE = 2;
029 const IGNORE_ON_INVALID_REFERENCE = 3;
030 const IGNORE_ON_UNINITIALIZED_REFERENCE = 4;
031
032 /**
033 * Sets a service.
034 *
035 * @param string $id The service identifier
036 * @param object|null $service The service instance
037 */
038 public function set($id, $service);
039
040 /**
041 * Gets a service.
042 *
043 * @param string $id The service identifier
044 * @param int $invalidBehavior The behavior when the service does not exist
045 *
046 * @return object|null The associated service
047 *
048 * @throws ServiceCircularReferenceException When a circular reference is detected
049 * @throws ServiceNotFoundException When the service is not defined
050 *
051 * @see Reference
052 */
053 public function get($id, $invalidBehavior = self::EXCEPTION_ON_INVALID_REFERENCE);
054
055 /**
056 * Returns true if the given service is defined.
057 *
058 * @param string $id The service identifier
059 *
060 * @return bool true if the service is defined, false otherwise
061 */
062 public function has($id);
063
064 /**
065 * Check for whether or not a service has been initialized.
066 *
067 * @param string $id
068 *
069 * @return bool true if the service has been initialized, false otherwise
070 */
071 public function initialized($id);
072
073 /**
074 * Gets a parameter.
075 *
076 * @param string $name The parameter name
077 *
078 * @return mixed The parameter value
079 *
080 * @throws InvalidArgumentException if the parameter is not defined
081 */
082 public function getParameter($name);
083
084 /**
085 * Checks if a parameter exists.
086 *
087 * @param string $name The parameter name
088 *
089 * @return bool The presence of parameter in container
090 */
091 public function hasParameter($name);
092
093 /**
094 * Sets a parameter.
095 *
096 * @param string $name The parameter name
097 * @param mixed $value The parameter value
098 */
099 public function setParameter($name, $value);
100 }
101