protected static ActionResultInfo performAction(GenericValue productPromoAction,ShoppingCart cart,Delegator delegator,LocalDispatcher dispatcher,Timestamp nowTimestamp) throws GenericEntityException, CartItemModifyException {
  ActionResultInfo actionResultInfo=new ActionResultInfo();
  performAction(actionResultInfo,productPromoAction,cart,delegator,dispatcher,nowTimestamp);
  return actionResultInfo;
}

protected static ActionResultInfo performAction ( GenericValue productPromoAction , ShoppingCart cart , Delegator delegator , LocalDispatcher dispatcher , Timestamp nowTimestamp ) throws GenericEntityException , CartItemModifyException { ActionResultInfo actionResultInfo = new ActionResultInfo ( ) ; performAction ( actionResultInfo , productPromoAction , cart , delegator , dispatcher , nowTimestamp ) ; return actionResultInfo ; }
returns true if the cart was changed and rules need to be re - evaluted
