Class ContainerAwareEventDispatcher

Lazily loads listeners and subscribers from the dependency injection container

Symfony\Component\EventDispatcher\EventDispatcher implements Symfony\Component\EventDispatcher\EventDispatcherInterface

Extended by

Symfony\Component\EventDispatcher\ContainerAwareEventDispatcher

Namespace: Symfony\Component\EventDispatcher
Author: Fabien Potencier <fabien@symfony.com>
Author: Bernhard Schussek <bschussek@gmail.com>
Author: Jordan Alliot <jordan.alliot@gmail.com>
Located at event-dispatcher/Symfony/Component/EventDispatcher/ContainerAwareEventDispatcher.php

Methods summary
`public`	# `__construct( Symfony\Component\DependencyInjection\ContainerInterface $container )` Constructor. Constructor. Parameters `$container` `Symfony\Component\DependencyInjection\ContainerInterface` $container A ContainerInterface instance
`public`	# `addListenerService( string $eventName, array $callback, integer $priority = 0 )` Adds a service as event listener Adds a service as event listener Parameters `$eventName` `string` $eventName Event for which the listener is added `$callback` `array` $callback The service ID of the listener service & the method name that has to be called `$priority` `integer` $priority The higher this value, the earlier an event listener will be triggered in the chain. Defaults to 0. Throws `InvalidArgumentException`
`public`	# `removeListener( string\|array $eventName, callable $listener )` Parameters `$eventName` `string\|array` $eventName The event(s) to remove a listener from `$listener` `callable` $listener The listener to remove See `Symfony\Component\EventDispatcher\EventDispatcherInterface::removeListener()` Overrides `Symfony\Component\EventDispatcher\EventDispatcher::removeListener()`
`public Boolean`	# `hasListeners( string $eventName = null )` Parameters `$eventName` `string` $eventName The name of the event Returns `Boolean` true if the specified event has any listeners, false otherwise See `Symfony\Component\EventDispatcher\EventDispatcherInterface::hasListeners()` Overrides `Symfony\Component\EventDispatcher\EventDispatcher::hasListeners()`
`public array`	# `getListeners( string $eventName = null )` Parameters `$eventName` `string` $eventName The name of the event Returns `array` The event listeners for the specified event, or all event listeners by event name See `Symfony\Component\EventDispatcher\EventDispatcherInterface::getListeners()` Overrides `Symfony\Component\EventDispatcher\EventDispatcher::getListeners()`
`public`	# `addSubscriberService( string $serviceId, string $class )` Adds a service as event subscriber Adds a service as event subscriber Parameters `$serviceId` `string` $serviceId The service ID of the subscriber service `$class` `string` $class The service's class name (which must implement EventSubscriberInterface)
`public Symfony\Component\EventDispatcher\Event`	# `dispatch( string $eventName, Symfony\Component\EventDispatcher\Event $event = null )` Lazily loads listeners for this event from the dependency injection container. Parameters `$eventName` `string` $eventName The name of the event to dispatch. The name of the event is the name of the method that is invoked on listeners. `$event` `Symfony\Component\EventDispatcher\Event` $event The event to pass to the event handlers/listeners. If not supplied, an empty Event instance is created. Returns `Symfony\Component\EventDispatcher\Event` Throws `InvalidArgumentException` if the service is not defined Overrides `Symfony\Component\EventDispatcher\EventDispatcher::dispatch()`
`public`	# `getContainer( )`
`protected`	# `lazyLoad( string $eventName )` Lazily loads listeners for this event from the dependency injection container. Lazily loads listeners for this event from the dependency injection container. Parameters `$eventName` `string` $eventName The name of the event to dispatch. The name of the event is the name of the method that is invoked on listeners.

Methods inherited from Symfony\Component\EventDispatcher\EventDispatcher
`addListener(), addSubscriber(), doDispatch(), removeSubscriber()`