List<BgtBudgetItemBreakups> xx = this.getEntityManager()
                         .createQuery("from BgtBudgetItemBreakups WHERE ClientId=:clientid AND BudgetItemId=:bgtitemid")
                              .setParameter("clientid", LoginUserInfo.getClientId())
                              .setParameter("bgtitemid", this.instance.getBgtBudgetItems().getBudgetItemId())
                              .getResultList();

I can't get oldvalues from database through List Collection Object only possible to access update values.