public function delete($object, $meta=null)
    {
        $query = new Query\Criteria();

        if (!is_object($object)) {
            throw new \BadMethodCallException("Please use deleteTable()");
        } 

        if ($meta) {
            $meta = !$meta instanceof Meta ? $this->mapper->getMeta($meta) : $meta;
        } else {
            $meta = $this->mapper->getMeta(get_class($object));
        }

        if (!$meta->canDelete) {
            throw new Exception("Meta {$meta->id} prohibits delete");
        }

        event_before: {
            if (isset($meta->on['beforeDelete'])) {
                foreach ($meta->on['beforeDelete'] as $cb) { $cb = [$object, $cb]; $cb(); }
            }
            if (isset($this->on['beforeDelete'])) {
                foreach ($this->on['beforeDelete'] as $cb) { $cb($object, $meta); }
            }
        }

        $query->where = $meta->getIndexValue($object);
        $return = $this->executeDelete($meta, $query);

        event_after: {
            if (isset($meta->on['afterDelete'])) {
                foreach ($meta->on['afterDelete'] as $cb) { $cb = [$object, $cb]; $cb(); }
            }
            if (isset($this->on['afterDelete'])) {
                foreach ($this->on['afterDelete'] as $cb) { $cb($object, $meta); }
            }
        }

        return $return;
    }