Re: [aspectj-users] Stop Excution of method.

["Eric Bodden" <eric.bodden@xxxxxxxxxxxxxx>]

Nuwan, you need to use an around-advice. Inside this advice you can
then put the following:

if(!account.isAccountClosed()){
  proceed();
}

So you only proceed with the original call if the account is *not* closed.

Eric

On 20/11/2007, Nuwan Dias <ndias86@xxxxxxxxx> wrote:
>
>
>
> public class Account {
>    private double balance;
>    private boolean accountClosed =  false;
>
>   public double getBalance() {
>         return balance;
>     }
>
>     public void setBalance(double balance) {
>         this.balance = balance;
>     }
>
>     public boolean isAccountClosed() {
>         return accountClosed;
>     }
>
>    public void deposit(double amount){
>       this.balance +- amount;
>   }
> }
>
> public aspect AccountAspect {
>    pointcut demo(Account account, double credit) : execution(void
> Account.deposit(double)) &&
>
> target(account) &&
>
> args(credit);
>
>   before(Account account, double credit) : demo(account, credit){
>
>         if(account.isAccountClosed()){
>                //i need something here to stop the deposit method from
> executing.
>        }
>  }
> }
>
>
> Hi friends,
>
>     I have my class Account and Aspect AccountAspect as shown above. The
> account class has a method called deposit. It also has an attribute called
> isAccountClosed. what i need to do is, whenever the deposit method is
> called, i need to check whether the account is closed and if it is closed, i
> need to stop executing the code inside the depoist method. I do not know how
> i can get this done in AspectJ. My main program which calls these methods is
> a class called Bank.java, it just calls the methods in the Account class. I
> would really appreciate it if someone could help me out here.
>
> Thanks in advance,
> Nuwan
>
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-- 
Eric Bodden
Sable Research Group
McGill University, Montréal, Canada