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<?php
namespace Metabor\Statemachine\Observer;
use Metabor\Statemachine\Statemachine;
use MetaborStd\Statemachine\StatemachineInterface;
/**
* Triggers automatically an event if the status changes and the new status has it.
*
* @author otischlinger
*/
class OnEnterObserver implements \SplObserver
{
const DEFAULT_EVENT_NAME = 'onEnter';
* @var string
private $eventName;
* @param string $eventName
public function __construct($eventName = self::DEFAULT_EVENT_NAME)
$this->eventName = $eventName;
}
* @see SplObserver::update()
public function update(\SplSubject $stateMachine)
if ($stateMachine instanceof StatemachineInterface && $stateMachine->getCurrentState()->hasEvent($this->eventName)) {
if ($stateMachine instanceof Statemachine) {
$autoreleaseLock = $stateMachine->isAutoreleaseLock();
$stateMachine->setAutoreleaseLock(false);
$stateMachine->triggerEvent($this->eventName, $stateMachine->getCurrentContext());
$stateMachine->setAutoreleaseLock($autoreleaseLock);
} else {
$stateMachine->triggerEvent($this->eventName);
Metabor /
Statemachine
