* * For the full copyright and license information, please view the LICENSE * file that was distributed with this source code. */ namespace Symfony\Component\DependencyInjection; use Psr\Container\ContainerInterface as PsrContainerInterface; use Symfony\Component\DependencyInjection\Exception\InvalidArgumentException; use Symfony\Component\DependencyInjection\Exception\ServiceCircularReferenceException; use Symfony\Component\DependencyInjection\Exception\ServiceNotFoundException; /** * ContainerInterface is the interface implemented by service container classes. * * @author Fabien Potencier * @author Johannes M. Schmitt */ interface ContainerInterface extends PsrContainerInterface { public const RUNTIME_EXCEPTION_ON_INVALID_REFERENCE = 0; public const EXCEPTION_ON_INVALID_REFERENCE = 1; public const NULL_ON_INVALID_REFERENCE = 2; public const IGNORE_ON_INVALID_REFERENCE = 3; public const IGNORE_ON_UNINITIALIZED_REFERENCE = 4; /** * Sets a service. */ public function set(string $id, ?object $service); /** * Gets a service. * * @param string $id The service identifier * @param int $invalidBehavior The behavior when the service does not exist * * @return object|null The associated service * * @throws ServiceCircularReferenceException When a circular reference is detected * @throws ServiceNotFoundException When the service is not defined * * @see Reference */ public function get($id, int $invalidBehavior = self::EXCEPTION_ON_INVALID_REFERENCE); /** * Returns true if the given service is defined. * * @param string $id The service identifier * * @return bool true if the service is defined, false otherwise */ public function has($id); /** * Check for whether or not a service has been initialized. * * @return bool true if the service has been initialized, false otherwise */ public function initialized(string $id); /** * Gets a parameter. * * @param string $name The parameter name * * @return array|bool|float|int|string|null The parameter value * * @throws InvalidArgumentException if the parameter is not defined */ public function getParameter(string $name); /** * Checks if a parameter exists. * * @param string $name The parameter name * * @return bool The presence of parameter in container */ public function hasParameter(string $name); /** * Sets a parameter. * * @param string $name The parameter name * @param mixed $value The parameter value */ public function setParameter(string $name, $value); }