/**
* @param UncommittedEvents $stream
* @return CommittedEvents
*/
public function commit(UncommittedEvents $stream)
{
$aggregateId = $stream->first()->getAggregateIdentity();
foreach ($stream as $event) {
$this->events[(string) $aggregateId][] = $event;
}
return new CommittedEvents($aggregateId, $stream->getEvents());
}
