@AfterReturning

Reference: Spring Docs - @AfterReturning

What is After Returning Advice?

• Executes after the specified method has completed normal execution and returned

  • Executes only when the target method completes normally without throwing an exception

• Mainly used to manipulate the return value of the target method or to perform tasks such as logging

Options

• pointcut

  • Specifies which methods to apply advice to

    • AspectJ pointcut expressions can be used to select methods

  • ex)

    @AfterReturning(pointcut = "execution(* com.example.service.MyService.*(..))")
    public void afterReturningAdvice() {
        // advice content
    }

• returning

  • Specifies a variable to receive the return value of the target method

    • Within the advice, the variable can be used to access the target method's return value

  • ex)

    @AfterReturning(pointcut = "execution(* com.example.service.MyService.*(..))", returning = "result")
    public void afterReturningAdvice(Object result) {
        // Access the target method's return value through the result variable
    }

• argNames

  • Specifies argument names of the method designated in the pointcut, allowing access to arguments within the advice

    • Can be used when argument names need to be known

  • ex)

    @AfterReturning(pointcut = "execution(* com.example.service.MyService.someMethod(..))", returning = "result", argNames = "param1,param2")
    public void afterReturningAdvice(Object result, String param1, int param2) {
        // Access the return value and parameters through result, param1, param2 variables
    }