i have added some basic transaction semantics support to the
wicket-contrib-database.
for now, i've just got TRANSACT_OPERATIONS and TRANSACT_REQUEST.
you can set the value globally with
Database.setDefaultTransactionSemantics() or per-db-session
with DatabaseSession.setTransactionSemantics().
i haven't added anything about mark-rollback. what exactly does that do?
Igor Vaynberg wrote:
I am using a single-transaction-per-request pattern - in my case I want to
rollback the transaction even if there was a ui error - that way the user
isnt confused as to why he got an error but the changes got saved.
When I was using h3 I had a
Interface hibernatesessionlocator() {
session getsession();
void markrollback();
boolean hassession();
}
I have an implementation of it that upon the first request to getsession()
creates a session, begins a transaction, and sticks the session into a
request attribute.
The app can retrieve a session or mark it for rollback using the locator.
Then I had a filter that would at the end of the request either rollback or
commit the transaction and close the session.
The only diff with ejb3 is that you don't need the locator to create
entitymanager/transaction as it is done for you.
-Igor
-----Original Message-----
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of
[EMAIL PROTECTED]
Sent: Friday, July 29, 2005 10:29 AM
To: [email protected]
Subject: RE: [Wicket-user] Hibernate/EJB3.0
Getting my hands on a WAR to see how you integrated hibernate
would be great. I'd be very appreciative.
Unfortunately, I am not starting from scratch and I am trying
to see how well wicket grafts onto an existing project that
has many DAO's that return POJO beans. We are currently
moving them into EJB3 objects and the whole process is still
quite new to me.
I would be interested to see where/how you are building the Hibernate
(EntityManager?) connection. From what Igor is saying it
sounds like the connection is built up in the Wicket
application and the objects are loaded on the attatch events.
Perhaps we can flesh out this aspect of wicket in the wiki a bit more.
-Paul
-----Original Message-----
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of
Phil Kulak
Sent: Friday, July 29, 2005 12:30 PM
To: [email protected]
Subject: Re: [Wicket-user] Hibernate/EJB3.0
I'll be committing a new version of CDApp shortly using
rewritten databinding and Hibernate3 integration. If you're
not into the whole CVS thing, I can post a WAR somewhere so
that you can get a feel for it.
On 7/29/05, Igor Vaynberg <[EMAIL PROTECTED]> wrote:
Paul,
Im not aware of any official docs yet. I am currently using
wicket as
a
presentation tier for ejb3 project, and its pretty easy to
integrate.
IMHO there are two main areas that need integration: application
object, and
detachable models for entities.
In the constructor's application object i get all needed
service bean
references or locators and set them as member variables. So now
anywhere in
your wicket components you can do
((MyApplicationClass)getApplication()).getService().doSomething();
and your getService() can be implemented either as getService() {
return
service; } or getService() { return
serviceLocator.locate(); } you can
implement helper funcs in your page subclass to eliminate casting.
As far as detachable models go in the onAttach() you can do pretty
much the
same thing:
public void onAttach() {
obj=((MyApplicationClass)RequestCycle.get().getApplication()).
getService
().load(....);
}
Igor
________________________________
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of
[EMAIL PROTECTED]
Sent: Friday, July 29, 2005 8:52 AM
To: [email protected]
Subject: [Wicket-user] Hibernate/EJB3.0
Greetings,
I'm evaluating several web frameworks including Wicket for
an internal
project and I was wondering if there was some documentation on
Hibernate or
EJB3.0 somewhere that I am missing. I found the
wicket-contrib package
at
http://wicket-stuff.sourceforge.net/ as well as the
HibernateObjectModel object in there. I also saw a quick run down on
Phil's
weblog: http://jroller.com/page/pKulak/ that seems like a good start
but I'm
failing to see how it all fits together. Is there an example
application
(PetStore-ish?) that uses EJB3 or Hibernate available to look at?
Overall I really like the direction of this project. Keep
up the good
work.
-Paul
-------------------------------------------------------
SF.Net email is Sponsored by the Better Software Conference &
EXPO September 19-22, 2005 * San Francisco, CA * Development
Lifecycle Practices Agile & Plan-Driven Development *
Managing Projects & Teams * Testing & QA Security * Process
Improvement & Measurement * http://www.sqe.com/bsce5sf
_______________________________________________
Wicket-user mailing list
[email protected]
https://lists.sourceforge.net/lists/listinfo/wicket-user
-------------------------------------------------------
SF.Net email is sponsored by: Discover Easy Linux Migration
Strategies from IBM. Find simple to follow Roadmaps,
straightforward articles, informative Webcasts and more! Get
everything you need to get up to speed, fast.
http://ads.osdn.com/?ad_idt77&alloc_id492&op=ick
_______________________________________________
Wicket-user mailing list
[email protected]
https://lists.sourceforge.net/lists/listinfo/wicket-user
-------------------------------------------------------
SF.Net email is sponsored by: Discover Easy Linux Migration Strategies
from IBM. Find simple to follow Roadmaps, straightforward articles,
informative Webcasts and more! Get everything you need to get up to
speed, fast. http://ads.osdn.com/?ad_idt77&alloc_id492&opÌk
_______________________________________________
Wicket-user mailing list
[email protected]
https://lists.sourceforge.net/lists/listinfo/wicket-user
-------------------------------------------------------
SF.Net email is sponsored by: Discover Easy Linux Migration Strategies
from IBM. Find simple to follow Roadmaps, straightforward articles,
informative Webcasts and more! Get everything you need to get up to
speed, fast. http://ads.osdn.com/?ad_id=7477&alloc_id=16492&op=click
_______________________________________________
Wicket-user mailing list
[email protected]
https://lists.sourceforge.net/lists/listinfo/wicket-user
