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]
> >
> >
>
