/**
* Overrides the "StateMachine::enterState" method,
* in order to support/emit the ON_STATE_ENTERED event.
*
* @param StatefulSubjectInterface $subject
* @param StateInterface $current_state
*/
protected function enterState(StatefulSubjectInterface $subject, StateInterface $next_state)
{
parent::enterState($subject, $next_state);
$this->fireEvent(self::ON_STATE_ENTERED, $subject, $next_state);
}
