public String performBill() {
sender.setCheckingaccount(sender.getCheckingaccount() - amount);
recipient.setCheckingaccount(recipient.getCheckingaccount() + amount);
em.merge(sender);
em.merge(recipient);
return sender.getCheckingaccount().toString();
}
@Override
public boolean setAmount(Long amount, String username) {
sender =
(UserEntity)
em.createNamedQuery("UserEntity.findByUsername")
.setParameter("username", username)
.getSingleResult();
if (amount > sender.getCheckingaccount()) {
System.out.println("You don't have enough money");
return false;
} else {
this.amount = amount;
return true;
}
}
public void checkBillDetails() throws IncorrectBillDetailsException {
Long sendAmount = sender.getCheckingaccount();
if ((sendAmount - amount) < 0)
throw new IncorrectBillDetailsException(
"Error: Bill details not correct. Check the amount of the transaction");
}