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Hibernate version:2

Mapping documents:any

Code between sessionFactory.openSession() and session.close():n/a

Full stack trace of any exception that occurs:n/a

Name and version of the database you are using:MySQL 4.0.12

The generated SQL (show_sql=true):n/a

Debug level Hibernate log excerpt:n/a

Hello,

I am reading Hibernate in Action. I plan to use the HibernateUtil version as outlined starting on page 301 of the book. I also plan to use the DAO pattern. I like the archtecture of this because the resulting code is clean. However, I have one question, where should I rollback a failed transaction? you suggest to comiton nn a filter

Thanks,

Jamey...

Well, it really depends on your exception handling. Usually (and especially with Hibernate3, where they are the default) I'd catch a RuntimeException at the highest layer and act accordingly. They are always fatal, so the best is a clean exit. It's more difficult to design an application that has some business related recovery functionality. So, wrap your fatal exceptions in RuntimeException, if you are using an EJB container, it will automatically rollback a global transaction if a RuntimeException is thrown.