protected function _getModel()
 {
     return Kwc_Columns_Abstract_ModelFactory::getModelInstance(array('componentClass' => $this->_class));
 }
 public function preDispatch()
 {
     $this->setModel(Kwc_Columns_Abstract_ModelFactory::getModelInstance(array('componentClass' => $this->_getParam('class'))));
     parent::preDispatch();
 }
 public static function createChildModel($componentClass)
 {
     return Kwc_Columns_Abstract_ModelFactory::getModelInstance(array('componentClass' => $componentClass));
 }