\Cake\EventEventManagerInterface

Interface EventManagerInterface

Summary

Methods
Constants
on()
off()
dispatch()
listeners()
No constants found
No protected methods found
N/A
No private methods found
N/A

Methods

on()

on(string|\Cake\Event\EventListenerInterface|null  $eventKey = null, array|callable  $options = array(), callable|null  $callable = null) : $this

Adds a new listener to an event.

A variadic interface to add listeners that emulates jQuery.on().

Binding an EventListenerInterface:

$eventManager->on($listener);

Binding with no options:

$eventManager->on('Model.beforeSave', $callable);

Binding with options:

$eventManager->on('Model.beforeSave', ['priority' => 90], $callable);

Parameters

string|\Cake\Event\EventListenerInterface|null $eventKey

The event unique identifier name with which the callback will be associated. If $eventKey is an instance of Cake\Event\EventListenerInterface its events will be bound using the implementedEvents methods.

array|callable $options

Either an array of options or the callable you wish to bind to $eventKey. If an array of options, the priority key can be used to define the order. Priorities are treated as queues. Lower values are called before higher ones, and multiple attachments added to the same priority queue will be treated in the order of insertion.

callable|null $callable

The callable function you want invoked.

Throws

\InvalidArgumentException

When event key is missing or callable is not an instance of Cake\Event\EventListenerInterface.

Returns

$this

off()

off(string|\Cake\Event\EventListenerInterface  $eventKey, callable|null  $callable = null) : $this

Remove a listener from the active listeners.

Remove a EventListenerInterface entirely:

$manager->off($listener);

Remove all listeners for a given event:

$manager->off('My.event');

Remove a specific listener:

$manager->off('My.event', $callback);

Remove a callback from all events:

$manager->off($callback);

Parameters

string|\Cake\Event\EventListenerInterface $eventKey

The event unique identifier name with which the callback has been associated, or the $listener you want to remove.

callable|null $callable

The callback you want to detach.

Returns

$this

dispatch()

dispatch(string|\Cake\Event\EventInterface  $event) : \Cake\Event\EventInterface

Dispatches a new event to all configured listeners

Parameters

string|\Cake\Event\EventInterface $event

The event key name or instance of EventInterface.

Returns

\Cake\Event\EventInterface

listeners()

listeners(string  $eventKey) : array

Returns a list of all listeners for an eventKey in the order they should be called

Parameters

string $eventKey

Event key.

Returns

array