final StringBuilder sb = new StringBuilder();
sb.append(description);
sb.append(String.format(" [INT TRANSFERT - %s]", bban));
Operation operationFrom = new Operation();
operationFrom.setAmount(-amount);
operationFrom.setDate(cal.getTime());
operationFrom.setWording(sb.toString());
from.addOperation(operationFrom);
Operation operationTo = new Operation();
operationTo.setAmount(amount);
operationTo.setDate(cal.getTime());
operationTo.setWording(sb.toString());
to.addOperation(operationTo);
accountService.withDrawAndCredit(from.getId(), to.getId(), amount);
operationDao.addOperation(operationFrom);
operationDao.addOperation(operationTo);