函数构建问题

我想在一个程序里面，调用reindex，我查过调用应该是MagentoCatalogModelIndexerProductFlatProcessor->reindexRow($id)

所以我想在程序调用它，根据老大们意思要么就在构建函数里面声明，要么就用objectManager, 但2个办法我都试了，不行，求高手们帮忙看看

class Action extends MagentoCatalogModelResourceModelAbstractResource {     
  /**      * @var MagentoCatalogModelIndexerProductFlatProcessor      */     
  protected $_productFlatIndexerProcessor;     
  /**      * @var MagentoCatalogModelIndexerProductPriceProcessor      */     
  protected $_productPriceIndexerProcessor;     
  /**      * Initialize connection      *      * @return void      */
  /**      * @param MagentoCatalogModelIndexerProductFlatProcessor $productFlatIndexerProcessor      */
       protected function _construct(         
           MagentoCatalogModelIndexerProductFlatProcessor $productFlatIndexerProcessor     
       ) {         
           $resource = $this->_resource;         
           $this->_productFlatIndexerProcessor = $productFlatIndexerProcessor;         
           $this->setType(MagentoCatalogModelProduct::ENTITY)->setConnection($resource->getConnection('catalog'));
      }

但这样写，程序会报错

Fatal error : Declaration of MagentoCatalogModelResourceModelProductAction::_construct(MagentoCatalogModelIndexerProductFlatProcessor $productFlatIndexerProcessor) must be compatible with MagentoFrameworkModelResourceModelAbstractResource::_construct() in  /magento2/vendor/magento/module-catalog/Model/ResourceModel/Product/Action.php  on line  180

但如果用objectManager的调用:

$objectManager = MagentoCatalogModelIndexerProductFlatProcessor::reindexRow();         
$categoryRepository = $objectManager->create('MagentoCatalogModelResourceModelProduct');

但还是报错

Exception #0 (Exception): Deprecated Functionality: Non-static method MagentoCatalogModelIndexerProductFlatProcessor::reindexRow() should not be called statically in /home/Little/magento2/vendor/magento/module-catalog/Model/ResourceModel/Product/Action.php on line 125

求高手帮忙看看，谢谢!