I have a problem with persistence in a Spring service. A Rest-Controller R receives a request, and calls a service S via a complex way through some layers of code. The service method in S declares a transaction; this should be the first time a transaction should be started. But the service behaves like a transaction already had been started before, and some of my data objects would be part of the session (which they must not). How can I determine if a transaction is already active? I have tried to inject EntityManager and/or JpaTransactionManager; but both seem to be of no help.
How can I check whether I am in a transaction or not?
I want to be sure of that before I go hunting through all these layers searching for possible suspects.
You can check if transaction is active using TransactionSynchronizationManager.isActualTransactionActive()
. But you should call it before a service method executing.
Also you can get status of current transaction using
TransactionStatus status = TransactionAspectSupport.currentTransactionStatus();
Besides, maybe a good point for you is to enable logging of transactions.
log4j.logger.org.hibernate.transaction=DEBUG
log4j.logger.org.springframework.transaction=DEBUG
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