Zend\EventManager

Interfaces Summary
EventManagerAwareInterface Interface to automate setter injection for an EventManager instance
EventsCapableInterface Interface indicating that an object composes an EventManagerInterface instance.
Traits Summary
EventManagerAwareTrait A trait for objects that provide events. If you use this trait in an object, you will probably want to also implement EventManagerAwareInterface, which will make it so the default initializer in a ZF2 MVC application will automatically inject an instance of the EventManager into your object when it is pulled from the ServiceManager.