Hi expert,
I am now at a stage where I need to handle transaction management in my
JEE JPA
maven hibernate project.
However, I just read that using hibernate sessionFactory is not so 'easy' as compare to EJB EntityManager.
Correct me if I am wrong.
Another way is to use Spring but I have no experience in Spring and if EJB can do the job I hope I can use EJB...hopefully it's
alot easier.
The problem I am facing is that I am trying to use sessionFactory on the insertion methods etc etc and seems to be repeating the code throughout.
The other problem is that it is a 'long conversation' with 'chaining' of 1 method to another and I am abit lost how to get this part correct cos I am receiving the error below :
java.lang.IllegalStateException: Transaction already active
at org.hibernate.engine.transaction.internal.TransactionImpl.begin(TransactionImpl.java:52)
at Business.RegisterService.isTutorExists(RegisterService.java:111)
at Business.RegisterService.register(RegisterService.java:30)
at controller.tutorController.doPost(tutorController.java:90)
Thus, I hope someone can tell me how to...
I am using
Tomcat 8 and MySQL.
Tks.
