Hands-On High Performance with Spring 5

Types of advice

In the preceding section, we learned different terminologies of AOP and how to define the pointcut expression. In this section, we will learn about the different types of advice in Spring AOP:

• @Before: This advice is executed before the join point and it is defined in aspect using the @Before annotation. The declaration is shown in the following code:

@Pointcut("execution(* com.packt.springhighperformance.ch03.bankingapp.service.TransferService.transfer(..))")public void transfer() {}@Before("transfer()")public void beforeTransfer(JoinPoint joinPoint){  LOGGGER.info("validate account balance before transferring amount");}

If the @Before method throws an exception, the transfer target method would not get called. This is a ...