| Fully Qualified Name: | Zend\EventManager\SharedEventManager |
| Implements: | SharedEventManagerInterface |
Shared/contextual EventManager
Allows attaching to EMs composed by other classes without having an instance first. The assumption is that the SharedEventManager will be injected into EventManager instances, and then queried for additional listeners when triggering an event.
| Name | Description | Defined By |
|---|---|---|
| attach() | Attach a listener to an event emitted by components with specific identifiers. | SharedEventManager |
| clearListeners() | SharedEventManager | |
| detach() | SharedEventManager | |
| getListeners() | Retrieve all listeners for a given identifier and event | SharedEventManager |
Attach a listener to an event emitted by components with specific identifiers.
Allows attaching a listener to an event offered by an identifying components. As an example, the following connects to the "getAll" event of both an AbstractResource and EntityResource:
$sharedEventManager = new SharedEventManager();
foreach (['My\Resource\AbstractResource', 'My\Resource\EntityResource'] as $identifier) {
$sharedEventManager->attach(
$identifier,
'getAll',
function ($e) use ($cache) {
if (!$id = $e->getParam('id', false)) {
return;
}
if (!$data = $cache->load(get_class($resource) . '::getOne::' . $id )) {
return;
}
return $data;
}
);
}
| Parameter Name | Type | Description |
|---|---|---|
| $identifier | string | Identifier |
| $event | string | |
| $listener | callable | Listener |
| $priority | int | Priority |
Returns: void
| Parameter Name | Type | Description |
|---|---|---|
| $identifier | ||
| $eventName |
Returns:
| Parameter Name | Type | Description |
|---|---|---|
| $listener | ||
| $identifier | ||
| $eventName | ||
| $force |
Returns:
Retrieve all listeners for a given identifier and event
| Parameter Name | Type | Description |
|---|---|---|
| $identifiers | string[] | |
| $eventName | string |
Returns: array[]