Full-stack dev quiz question #34

Full-stack dev quiz question #34

Spring libraries are back at dba-presents.com. Thirty fourth question is about Spring Retry.

What will happen if you run doSomething() method of this class:

@Service
 public class MyService {
     private static final int MAX_FAILURES = 2;
     private int numberOfExecutions = 0;

     @Retryable (
             maxAttempts = 2,
             backoff = @Backoff(delay = 200),
             include = SQLException.class
     )
     public String doSomething() {
         numberOfExecutions++;
         // succeed after MAX_FAILURES times in a row
         if (numberOfExecutions > MAX_FAILURES) {
             return "success";
         }
         throw new RuntimeException();
     }
}

Choose the correct option:

1. It will succeed.
2. It will fail with RuntimeException.
3. It will fail with SQLException.

For the correct answer scroll down

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The correct answer is: b. For more information read Repeating actions with Spring Retry.