/**
* Product collection initialize process
*
* @return Mage_Catalog_Model_Resource_Product_Collection|Object|Varien_Data_Collection
*/
protected function _getProductCollection()
{
switch ($this->getDisplayType()) {
case self::DISPLAY_TYPE_NEW_PRODUCTS:
$collection = parent::_getProductCollection();
break;
default:
$collection = $this->_getRecentlyAddedProductsCollection();
break;
}
return $collection;
}
