主义实体管理者明确并不完全清楚

I have this piece of code:

我有这段代码：

$entityManager->clear('Reza\MyBundle\Entity\ListItem');

$identity = $entityManager->getUnitOfWork()->getIdentityMap();
foreach ($identity as $class => $objectlist) {
    if ($class == 'Reza\MyBundle\Entity\ListItem') {
        print "didn't fully clear, exiting..\n ";
        exit;
    }
}
$entityM