Hi,
I have followed the advise
on http://code.google.com/p/google-guice/wiki/JPA and it seems to work when
I set @Transactional directly on my DAO. However, I have trouble
implementing this in a transaction-per-request fashion. My first attempt is
to use a filter:
@Transactional
>
> class TransactionFilter implements Filter {
>
>
> final Provider<EntityManager> entityManager;
>
> @Inject
>
> public TransactionFilter(Provider<EntityManager> entityManager) {
>
> this.entityManager = entityManager;
>
> }
>
> @Transactional
>
> @Override
>
> public void doFilter(ServletRequest arg0, ServletResponse arg1, FilterChain
> arg2) throws IOException, ServletException {
>
> arg2.doFilter(arg0, arg1);
>
> }
>
Bound AFTER:
> filter("/*").through(PersistFilter.class);
in my module. It just does not seem to have an effect.
How do people ensure one transaction per request in a servlet environment ?
Kind regards
Johannes
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