Spring nested transactions

Question

In my Spring Boot project I have implemented following service method:

@Transactional
public boolean validateBoard(Board board) {
    boolean result = false;
            


        

Answer 1

Your problem is a method's call from another method inside the same proxy.It's self-invocation. In your case, you can easily fix it without moving a method inside another service (why do you need to create another service just for moving some method from one service to another just for avoid self-invocation?), just to call the second method not directly from current class, but from spring container. In this case you call proxy second method with transaction not with self-invocatio.

This principle is useful for any proxy-object when you need self-invocation, not only a transactional proxy.

@Service
class SomeService ..... {
    -->> @Autorired
    -->> private ApplicationContext context;
    -->> //or with implementing ApplicationContextAware

    @Transactional(any propagation , it's not important in this case)
    public boolean methodOne(SomeObject object) {
      .......
       -->> here you get a proxy from context and call a method from this proxy
       -->>context.getBean(SomeService.class).
            methodTwo(object);
      ......
   }

    @Transactional(any propagation , it's not important in this case)public boolean 
    methodTwo(SomeObject object) {
    .......
   }
}

when you do call context.getBean(SomeService.class).methodTwo(object); container returns proxy object and on this proxy you can call methodTwo(...) with transaction.