Spring - @Transactional - What happens in background?
For target beans annotated with @Transactional, Spring will create a TransactionInterceptor, and pass it to the generated proxy object. So when you call the method from client code, you're calling the method on the proxy object, which first invokes the TransactionInterceptor (which begins a transaction), which in turn invokes the method on your ...
java - What does @Transactional do? - Stack Overflow
The transactional only changes your database connection to not auto commit. – OQJF. Commented Jul 10, ...
How to use @Transactional with Spring Data? - Stack Overflow
You may add @Transactional later if you plan to add more logic to your service that deals with another tables / repositories - then there will be a point having it. If no - then your service should use @Transactional if you want to make sure you do not have issues with isolation, that you are not reading something that is not yet commuted for ...
Where does the @Transactional annotation belong? - Stack …
2009年7月3日 · @Transactional Annotations should be placed around all operations that are inseparable. Using @Transactional transaction propagation are handled automatically.In this case if another method is called by current method,then that method will have the option of joining the ongoing transaction. So lets take example: We have 2 model's i.e. Country ...
When should we use @Transactional annotation? - Stack Overflow
2024年3月9日 · @Transactional public void saveEmployee(Employee employee) { repo.save(employee) userTrackerRepo.update() // or any other repo invocation or validation that if fails then save method should do rollback. } Then it make senses to …
java - @Transactional, method inside method - Stack Overflow
2016年2月24日 · I mean, a method should be Transactional when it have to be all done in a same transaction, and this depends for the programmer and the business logic. For example, Option A is correct if the 'generate' method contains logic to be done in the same Transaction , so if something in the generate method fails, all the changes are undone.
How to use @Transactional annotation in Spring boot
2019年5月2日 · Before using @Transactional annotation in my project I have two questions . Best practice to use @Transactional annotation in spring-boot, service layer or DAO layer? If the service layer then where do I use the @Transactional annotation on …
java - Spring Retry with Transactional - Stack Overflow
2018年4月5日 · Starting from spring-retry version 2.0.1 (not released yet) there is new order attribute of @EnableRetry annotation that is equal to Ordered.LOWEST_PRECEDENCE - 1 by default to make sure @Retryable advice will always be ordered before @Transactional advice (when @Transactional advice order is default).
java - javax.transaction.Transactional vs org.springframework ...
Spring has defined its own Transactional annotation to make Spring bean methods transactional, years ago. Java EE 7 has finally done the same thing and now allows CDI bean methods to be transactional, in addition to EJB methods. So since Java EE 7, it also defines its own Transactional annotation (it obviously can't reuse the Spring one).
Annotation @Transactional. How to rollback? - Stack Overflow
2011年10月24日 · It really works this way :-). If you have a service calling several DAOs, the service needs to have a @Transactional annotation as well. Otherwise each DAO call start and commits new transaction before you throw an exception in the service. The bottom line is: the exception must leave (escape) a method marked as @Transactional. –