public function getData()
    {
        if (is_null($this->_currentData)) {
            $this->_currentDataRaw = $this->dataProvider->getData();
            $this->_currentData = [];
            $itemNumber = $this->dataProvider->pagination->offset;
            $row = 0;
            foreach ($this->_currentDataRaw as $r) {
                $p = ['itemNumber' => $itemNumber, 'id' => $r->primaryKey, 'values' => []];
                foreach ($this->columns as $key => $c) {
                    $p['values'][$key] = $c->getDataValue($row, $r, false);
                }
                $p['acl'] = [];
                if ($this->owner->instanceSettings['whoAmI'] === 'parent' and isset($r->childObject) and $r->childObject->hasBehavior('Access')) {
                    $p['acl'] = $r->childObject->aclSummary();
                } elseif ($this->owner->instanceSettings['whoAmI'] === 'child' and isset($r->parentObject) and $r->parentObject->hasBehavior('Access')) {
                    $p['acl'] = $r->parentObject->aclSummary();
                } elseif ($r->hasBehavior('Access')) {
                    $p['acl'] = $r->aclSummary();
                }
                $this->_currentData['item-' . $itemNumber] = $p;
                $row++;
                $itemNumber++;
            }
        }

        return $this->_currentData;
    }