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  • 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
  • Where does the @Transactional annotation belong?
    @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
  • java - What does @Transactional do? - Stack Overflow
    The transactional only changes your database connection to not auto commit – OQJF Commented Jul 10,
  • java - @Transactional, method inside method - Stack Overflow
    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
  • What are advantages of using @Transactional(readOnly = true)?
    From the explanation of Oliver Gierke - the Spring Data author: Reading methods like findAll() and findOne(…) are using @Transactional(readOnly = true) which is not strictly necessary but triggers a few optimizations in the transaction infrastructure (setting the FlushMode to MANUAL to let persistence providers potentially skip dirty checks when closing the EntityManager)
  • 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
  • Annotation @Transactional. How to rollback? - Stack Overflow
    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 –
  • java - @Async and @Transactional - Stack Overflow
    @Transactional commonly works with thread-bound transactions managed by PlatformTransactionManager, exposing a transaction to all data access operations within the current execution thread Note: This does not propagate to newly started threads within the method @Transactional is powered by Aspect-Oriented Programming Therefore, processing
  • c - What is transactional memory? - Stack Overflow
    Transactional Memory is the concept of using transactions rather than locks to synchronise processes that execute in parallel and share memory At a very simplified level, to synchronise with locks you identify sections of code (called critical sections ) that must not be executed simultaneously by different threads and acquire and release
  • java - @Transactional method calling another method without . . .
    If you call a method with a @Transactional annotation from a method with @Transactional belonging to the same Spring Bean, then the called method's transactional behavior will not have any impact on the transaction But if you call a method with a transaction definition from another method with a transaction definition, and they belong to





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