I forgot the codez...

In spring you can use the @Transactional annotation to marcate public methods as transactions. Any exception thrown in such an exception causes a rollback... Any exception? No, spring only does so on runtime exceptions. Checked exceptions are allowed and do not result in a rollback. And even then, you can allow some transactions to rollback, or not, with the proper properties for the transactions. For examle, @Transactional(rollbackFor="MyCheckedException.class") will rollback for a specific checked exception, and similarly, you can use @Transactional(noRollbackFor="MyUncheckedException.class") for unchecked exceptions. Of course, you might want to make it a little simpler on yourself. This article on stackoverflow shows us a different way: we can use our own transaction handler by overriding spring's. Let's have a sample interface which defines whether an exception should perform a rollback: interface ConfigurableRollback shouldRollbackOnE...