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Alex Rivera
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I'm developing a web app with Spring MVC and hibernate for persistence. Given my DAO where GenericDao has a SessionFactory member attribute: @Repository public class Dao extends GenericDao { public void save(Object o) { getCurrentSession().save(o); } } And a Service class @Service public class MyService { @Autowired Dao dao; @Transactional public void save(Object o) { dao.save(o); } } I want to inform my user if a persistence exception occurs (constraint, duplicate, etc). As far as I know, the @Transactional annotation only works if the exception bubbles up and the transaction manager rolls back so I shouldn't be handling the exception in that method. Where and how should I catch an exception that would've happened in the DAO so that I can present it to my user, either directly or wrapped in my own exception? I want to use spring's transaction support.
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