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I want to know what actually happens when you annotate a method with @Transactional? Of course, I know that Spring will wrap that method in a Transaction. But, I have the following doubts: I heard...
But if you use @transactional on your method then all those DAO calls will be wrapped in a single begin() - commit() cycle. Of course, in case you use @Transactional the DAOs must not use the begin() and commit() methods I think.
I wanted to know when we should use @Transactional in Spring Boot Services. Since JpaRepository's save() method is annotated with @Tranasactional is it required for me to add that annotation in my
1 - Na documentação do Spring é descrito o uso de @Transactional do Spring nas classes de regra de negócio(ProdutosService por exemplo) tem algum motivo especial para se usar essa anotação nessas c...
Here is a worked example, CircuitStateRepository is a spring-data JPA repository. BeanS calls a transactional=read-only Bean1, which does a lookup and calls transactional=read-write Bean2 which saves a new object. Bean1 starts a read-only tx.
Can someone explain the isolation & propagation parameters in the @Transactional annotation via a real-world example? Basically when and why should I choose to change their default values?
We use @Transactional annotation when we create/update one more entity at the same time. If the method which has @Transactional throws an exception, the annotation helps to roll back the previous inserts.