docs: @Override
  	public CommerceOrderItem fetchByPrimaryKey(Serializable primaryKey) {
  		Serializable serializable = entityCache.getResult(CommerceOrderItemModelImpl.ENTITY_CACHE_ENABLED,
  				CommerceOrderItemImpl.class, primaryKey);
  
  		if (serializable == nullModel) {
  			return null;
  		}
  
  		CommerceOrderItem commerceOrderItem = (CommerceOrderItem)serializable;
  
  		if (commerceOrderItem == null) {
  			Session session = null;
  
  			try {
  				session = openSession();
  
  				commerceOrderItem = (CommerceOrderItem)session.get(CommerceOrderItemImpl.class,
  						primaryKey);
  
  				if (commerceOrderItem != null) {
  					cacheResult(commerceOrderItem);
  				}
  				else {
  					entityCache.putResult(CommerceOrderItemModelImpl.ENTITY_CACHE_ENABLED,
  						CommerceOrderItemImpl.class, primaryKey, nullModel);
  				}
  			}
  			catch (Exception e) {
  				entityCache.removeResult(CommerceOrderItemModelImpl.ENTITY_CACHE_ENABLED,
  					CommerceOrderItemImpl.class, primaryKey);
  
  				throw processException(e);
  			}
  			finally {
  				closeSession(session);
  			}
  		}
  
  		return commerceOrderItem;
  	}