Doctrine\OXM\UnitOfWork::scheduleForDelete PHP Method

    public function scheduleForDelete($xmlEntity)
    {
        $oid = spl_object_hash($xmlEntity);
        if (isset($this->entityInsertions[$oid])) {
            if ($this->isInIdentityMap($xmlEntity)) {
                $this->removeFromIdentityMap($xmlEntity);
            }
            unset($this->entityInsertions[$oid]);
            return;
            // entity has not been persisted yet, so nothing more to do.
        }
        if (!$this->isInIdentityMap($xmlEntity)) {
            return;
            // ignore
        }
        $this->removeFromIdentityMap($xmlEntity);
        if (isset($this->entityUpdates[$oid])) {
            unset($this->entityUpdates[$oid]);
        }
        if (!isset($this->entityDeletions[$oid])) {
            $this->entityDeletions[$oid] = $xmlEntity;
        }
    }