public function apply($event, MetaData $metaData = null)
{
if (null === $this->aggregateRoot) {
throw new \RuntimeException("The aggregate root is unknown. " . "Is this entity properly registered as the child of an aggregate member?");
}
$this->aggregateRoot->apply($event, $metaData);
}
public function apply($payload, MetaData $metaData = null)
{
parent::apply($payload, $metaData);
}