如何使Web服务的调用链具有事务性？

Question

Let's says that I want to make two calls: one to service A and the second one to service B .

How should I make those two calls in a transactional way ? For example, I call service A (it inserts some data into DB) and after that I try to call service B , but this fails; how should I rollback the insertion made when I called the service A ?

Should I call a "rollback" method?

What if also this call will not work?

Answer 1

Spring framework provides an abstract layer on top of different underlying transaction management APIs.

Read this: http://docs.spring.io/spring-framework/docs/4.2.x/spring-framework-reference/html/transaction.html

@Transactional(readOnly = true)
public class DefaultFooService implements FooService {

    public Foo getFoo(String fooName) {
        // do something
    }

    // these settings have precedence for this method
    @Transactional(readOnly = false, propagation = Propagation.REQUIRES_NEW)
    public void updateFoo(Foo foo) {
        // do something
    }
}