FYI: Reference blog post: http://weblogs.java.net/blog/davidvc/archive/2007/04/jpa_and_rollbac.html
On Wed, Apr 2, 2008 at 3:55 PM, Meindert Deen <[EMAIL PROTECTED]> wrote: > As I understand it, then your second email is correct. If you don't run > the getting and updating of your components in a transaction, your Entity > gets decoupled (JPA default behavior is to decouple the Entities outside of > a transaction), so it will not save any updates done outside of the > transaction. > > > On Wed, Apr 2, 2008 at 2:38 PM, Nino Saturnino Martinez Vazquez Wael < > [EMAIL PROTECTED]> wrote: > > > Hmm thinking over this again. I thought that after you persisted > > something, JPA would handle it for you. So what you are saying are that if I > > get a object from the persistance manager, and then update something > > directly on the POJO i would then have to begin a transaction and commit it? > > > > So just binding using a compoundmodel I would have to have a tx begin > > and commit in the submit method of the form? > > > > Like this: > > > > public void onSubmit() { > > tx.begin; > > tx.commit? > > } > > }; > > > > > > > > > > Meindert Deen wrote: > > > > > my 2 cents, don't know if this is your problem: > > > The transaction based entity manager only commits if the update of the > > > data > > > is within a transaction. So you must wrap your update in a > > > transaction > > > (you said you used Spring, so you can configure this in your Spring > > > xml or > > > use the annotation based transactions.) > > > > > > Hope this helps, > > > > > > Meindert > > > > > > On Wed, Apr 2, 2008 at 12:33 PM, Nino Saturnino Martinez Vazquez Wael > > > < > > > [EMAIL PROTECTED]> wrote: > > > > > > > > > > > > > I know this is not completely related. But here goes anyway. > > > > > > > > I have an application with several different flows. If I switch from > > > > extended to transaction, suddenly the values in my form aren't save > > > > to the > > > > database(but they are saved in memory), I use spring to instantiate > > > > entitymanager and inject. It's very strange that it does not work. > > > > > > > > I believe that the difference between expanded and transaction based > > > > entity manager are something todo with if it's request or session > > > > based > > > > right? I would actually have thought the error to show the other way > > > > around. > > > > > > > > Heres some code of my forms, I use the compoundpropertymodel: > > > > > > > > add(new TextField("lifts").add(NumberValidator.POSITIVE)); > > > > add(new TextField("weight").add(NumberValidator.POSITIVE)); > > > > > > > > Button btnUpdate = new Button("updateRep", new Model("updateRep")) { > > > > @Override > > > > public void onSubmit() { > > > > //make a roundtrip so JPA saves the changes > > > > } > > > > }; > > > > > > > > And web.xml: > > > > > > > > <context-param> > > > > <param-name>contextConfigLocation</param-name> > > > > <param-value>classpath:zeuzContext.xml</param-value> > > > > </context-param> > > > > > > > > > > > > <filter> > > > > > > > > <filter-name>openEntityManagerInViewFilter</filter-name> > > > > <filter-class> > > > > > > > > org.springframework.orm.jpa.support.OpenEntityManagerInViewFilter > > > > </filter-class> > > > > </filter> > > > > > > > > > > > > <filter-mapping> > > > > > > > > <filter-name>openEntityManagerInViewFilter</filter-name> > > > > <url-pattern>/*</url-pattern> > > > > </filter-mapping> > > > > > > > > <listener> > > > > <listener-class> > > > > > > > > org.springframework.web.context.ContextLoaderListener > > > > </listener-class> > > > > </listener> > > > > <filter> > > > > <filter-name>zeuzGroupApplication</filter-name> > > > > <filter-class> > > > > org.apache.wicket.protocol.http.WicketFilter > > > > </filter-class> > > > > <init-param> > > > > <param-name>applicationClassName</param-name> > > > > <param-value> > > > > > > > > zeuzgroup.application.ZeuzGroupApplication > > > > </param-value> > > > > </init-param> > > > > </filter> > > > > > > > > <filter-mapping> > > > > <filter-name>zeuzGroupApplication</filter-name> > > > > <url-pattern>/zeuz/*</url-pattern> > > > > </filter-mapping> > > > > > > > > > > > > > > > > -- > > > > -Wicket for love > > > > > > > > Nino Martinez Wael > > > > Java Specialist @ Jayway DK > > > > http://www.jayway.dk > > > > +45 2936 7684 > > > > > > > > > > > > > > > > --------------------------------------------------------------------- > > > > To unsubscribe, e-mail: [EMAIL PROTECTED] > > > > For additional commands, e-mail: [EMAIL PROTECTED] > > > > > > > > > > > > > > > > > > > > > > > > > > > > > -- > > -Wicket for love > > > > Nino Martinez Wael > > Java Specialist @ Jayway DK > > http://www.jayway.dk > > +45 2936 7684 > > > > > > --------------------------------------------------------------------- > > To unsubscribe, e-mail: [EMAIL PROTECTED] > > For additional commands, e-mail: [EMAIL PROTECTED] > > > > >