Namespace Symfony\Component\EventDispatcher

Namespaces summary
Symfony\Component\EventDispatcher\Debug
Symfony\Component\EventDispatcher\DependencyInjection
Symfony\Component\EventDispatcher\Tests

Classes summary
ContainerAwareEventDispatcher	Lazily loads listeners and subscribers from the dependency injection container.
Event	Event is the base class for classes containing event data.
EventDispatcher	The EventDispatcherInterface is the central point of Symfony's event listener system.
GenericEvent	Event encapsulation class.
ImmutableEventDispatcher	A read-only proxy for an event dispatcher.

Interfaces summary
EventDispatcherInterface	The EventDispatcherInterface is the central point of Symfony's event listener system. Listeners are registered on the manager and events are dispatched through the manager.
EventSubscriberInterface	An EventSubscriber knows himself what events he is interested in. If an EventSubscriber is added to an EventDispatcherInterface, the manager invokes `Symfony\Component\EventDispatcher\EventSubscriberInterface::getSubscribedEvents()` and registers the subscriber as a listener for all returned events.