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Posted to dev@tomee.apache.org by David Blevins <da...@visi.com> on 2007/08/29 09:54:43 UTC
JPA Examples (was: Re: Setup tutorial?)
On Aug 28, 2007, at 2:59 PM, deniskulik wrote:
> David Blevins wrote:
>> On Aug 27, 2007, at 11:50 AM, deniskulik wrote:
>>
>>> I will try to look at how things work with jpa, ejbs, mdbs and etc
>>> more
>>> closely. Can anyone please point me to the place where I could find
>>> more or
>>> less up to date info on how they can be configured?
>>
>> We're working on more examples: http://issues.apache.org/jira/
>> browse/
>> OPENEJB-342
>>
>
> Perhaps I could throw in some examples mentioned on the list if you
> dont
> mind. Already have a couple of persistence examples, just need to
> polish
> them off slightly.
Absolutely, Denis. That'd be fantastic. We love to see new people
helping out, so welcome to the team! :) And definitely feel welcome
to dig into anything, make all the suggestions you want and ask all
the questions you want.
If you let me know your jira id I can add you to the openejb-
contributors group and assign you any example you'd like.
I think we may have some issues with persistence.xml support when
people go off the "happy path". Trying to get an app deployment to
fail due to bad jpa setup and not getting the kind of feedback I
would expect.
-David
Re: JPA Examples (was: Re: Setup tutorial?)
Posted by David Blevins <da...@visi.com>.
On Dec 8, 2007, at 6:25 AM, Jacek Laskowski wrote:
> On Dec 8, 2007 9:14 AM, David Blevins <da...@visi.com> wrote:
>
>> It shows a Stateful bean using an EntityManager with EXTENDED
>> persistence type so the entities won't detach between calls to the
>> Stateful bean as they would if when using TRANSACTION (i.e. jta
>> scoped) persistence.
>
> ...or if using @Stateless. EXTENDED is applicable to @Stateful only.
> One of the reasons @Stateful's so handy.
Exactly. Last night I added a validation JIRA on this exact thought
too:
[OPENEJB-730] Validation: Attempted use of
PersistenceContextType.EXTENDED by non-Stateful bean
Currently, we aren't checking that people are trying to use EXTENDED
with Stateless. I tried it last night and the app totally deployed
without a peep and just failed silently at runtime.
-David
Re: JPA Examples (was: Re: Setup tutorial?)
Posted by Jacek Laskowski <ja...@laskowski.net.pl>.
On Dec 8, 2007 9:14 AM, David Blevins <da...@visi.com> wrote:
> It shows a Stateful bean using an EntityManager with EXTENDED
> persistence type so the entities won't detach between calls to the
> Stateful bean as they would if when using TRANSACTION (i.e. jta
> scoped) persistence.
...or if using @Stateless. EXTENDED is applicable to @Stateful only.
One of the reasons @Stateful's so handy.
p.s. I had a EJB3 presentation on a Poznan University yesterday. It
took me over 3 hours to talk about it - lots of examples and topic
around EJB3 and JPA and I had only scratched the EJB3/JPA surface. I
had done it with Glassfish as it's nicely integrated with NetBeans IDE
6 that provides features for Java EE development beyond those I could
find in Eclipse (I'm not talking about RAD7.5 though that's around the
corner). Ok, gonna start another thread about it.
Jacek
--
Jacek Laskowski
http://www.JacekLaskowski.pl
Re: JPA Examples (was: Re: Setup tutorial?)
Posted by David Blevins <da...@visi.com>.
On Nov 24, 2007, at 6:45 PM, openejber wrote:
>
> my replies were kept blocked last couple of days....
>
> indeed, i'd like to see a JPA example below,
>
> - a non-servlet normal unit test class looking up and casting an ejb
> bean's
> local proxy object(namely OPENEJB IntraVM mode?), which does CRUD on
> an
> entity
> - a local ejb interface defining CRUD methods
> - a bmt-ejb bean injected with the persistence context consisting of
> that
> entity, and the bean implementing that ejb interface
> - finally, the entity class itself
Have a new example here that shows JPA usage. Ant and Maven build
scripts included.
http://svn.apache.org/repos/asf/openejb/trunk/openejb3/examples/injection-of-entitymanager/
It shows a Stateful bean using an EntityManager with EXTENDED
persistence type so the entities won't detach between calls to the
Stateful bean as they would if when using TRANSACTION (i.e. jta
scoped) persistence.
-David
Re: JPA Examples (was: Re: Setup tutorial?)
Posted by openejber <fa...@yahoo.com>.
CORRECTION: a cmt-ejb bean instead of a bmt-ejb bean
my replies were kept blocked last couple of days....
indeed, i'd like to see a JPA example below,
- a non-servlet normal unit test class looking up and casting an ejb bean's
local proxy object(namely OPENEJB IntraVM mode?), which does CRUD on an
entity
- a local ejb interface defining CRUD methods
- a bmt-ejb bean injected with the persistence context consisting of that
entity, and the bean implementing that ejb interface
- finally, the entity class itself
thx!
--
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Re: JPA Examples (was: Re: Setup tutorial?)
Posted by openejber <fa...@yahoo.com>.
my replies were kept blocked last couple of days....
indeed, i'd like to see a JPA example below,
- a non-servlet normal unit test class looking up and casting an ejb bean's
local proxy object(namely OPENEJB IntraVM mode?), which does CRUD on an
entity
- a local ejb interface defining CRUD methods
- a bmt-ejb bean injected with the persistence context consisting of that
entity, and the bean implementing that ejb interface
- finally, the entity class itself
thx!
David Blevins wrote:
>
>
> On Nov 20, 2007, at 12:37 AM, Jacek Laskowski wrote:
>
>> On Nov 20, 2007 2:21 AM, David Blevins <da...@visi.com> wrote:
>>
>>> We don't have any JPA examples yet. Dario has some in his blog
>>> though:
>>
>> Hi,
>>
>> So what's persistence.xml for in ejb-examples? There's
>> <class>org.apache.openejb.examples.servlet.JpaBean</class> and the
>> class looks as @Entity:
>>
>> @Entity
>> public class JpaBean {
>> @Id
>> @GeneratedValue(strategy = GenerationType.IDENTITY)
>> @Column(name = "id")
>> private int id;
>>
>> What examples would you think of?
>
> I forgot about Dain's servlet examples. They only run in Tomcat and
> have no unit tests.
>
> I was thinking about OPENEJB-360 which would show an ejb using jpa
> along with a unit test to show embedded testing.
>
> -David
>
>
>
--
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Re: JPA Examples (was: Re: Setup tutorial?)
Posted by David Blevins <da...@visi.com>.
On Nov 20, 2007, at 12:37 AM, Jacek Laskowski wrote:
> On Nov 20, 2007 2:21 AM, David Blevins <da...@visi.com> wrote:
>
>> We don't have any JPA examples yet. Dario has some in his blog
>> though:
>
> Hi,
>
> So what's persistence.xml for in ejb-examples? There's
> <class>org.apache.openejb.examples.servlet.JpaBean</class> and the
> class looks as @Entity:
>
> @Entity
> public class JpaBean {
> @Id
> @GeneratedValue(strategy = GenerationType.IDENTITY)
> @Column(name = "id")
> private int id;
>
> What examples would you think of?
I forgot about Dain's servlet examples. They only run in Tomcat and
have no unit tests.
I was thinking about OPENEJB-360 which would show an ejb using jpa
along with a unit test to show embedded testing.
-David
Re: JPA Examples (was: Re: Setup tutorial?)
Posted by Jacek Laskowski <ja...@laskowski.net.pl>.
On Nov 20, 2007 2:21 AM, David Blevins <da...@visi.com> wrote:
> We don't have any JPA examples yet. Dario has some in his blog though:
Hi,
So what's persistence.xml for in ejb-examples? There's
<class>org.apache.openejb.examples.servlet.JpaBean</class> and the
class looks as @Entity:
@Entity
public class JpaBean {
@Id
@GeneratedValue(strategy = GenerationType.IDENTITY)
@Column(name = "id")
private int id;
What examples would you think of?
Jacek
--
Jacek Laskowski
http://www.JacekLaskowski.pl
Re: JPA Examples (was: Re: Setup tutorial?)
Posted by David Blevins <da...@visi.com>.
On Nov 19, 2007, at 2:23 PM, Jacek Laskowski wrote:
> On Nov 19, 2007 9:53 PM, openejber <fa...@yahoo.com> wrote:
>
>> are these JPA Examples for openejb3 accessible now?:confused:
>> couldn't find
>> from the Sep. beta release.
>
> Yes, they are at
> http://svn.apache.org/repos/asf/openejb/trunk/openejb3/examples. Grab
> them with
>
> svn co http://svn.apache.org/repos/asf/openejb/trunk/openejb3/
> examples
> openejb3-examples
>
> and give them a shot with
>
> mvn test
>
> Look at ejb-examples directory.
>
> I'm just working on another one for ejb3 interceptors so if you tell
> us what example you need I can easily create some for you. Just let us
> know.
We don't have any JPA examples yet. Dario has some in his blog though:
http://javanotebook.com/2007/09/28/openejb_3_and_tomcat_6.html
-David
Re: JPA Examples (was: Re: Setup tutorial?)
Posted by openejber <fa...@yahoo.com>.
both links point to the same repos (Revision 596492), right?! sure i'll come
back for more helps once get into trouble. thx!
--
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Re: JPA Examples (was: Re: Setup tutorial?)
Posted by Jacek Laskowski <ja...@laskowski.net.pl>.
On Nov 19, 2007 9:53 PM, openejber <fa...@yahoo.com> wrote:
> are these JPA Examples for openejb3 accessible now?:confused: couldn't find
> from the Sep. beta release.
Yes, they are at
http://svn.apache.org/repos/asf/openejb/trunk/openejb3/examples. Grab
them with
svn co http://svn.apache.org/repos/asf/openejb/trunk/openejb3/examples
openejb3-examples
and give them a shot with
mvn test
Look at ejb-examples directory.
I'm just working on another one for ejb3 interceptors so if you tell
us what example you need I can easily create some for you. Just let us
know.
Jacek
--
Jacek Laskowski
http://www.JacekLaskowski.pl
Re: JPA Examples (was: Re: Setup tutorial?)
Posted by openejber <fa...@yahoo.com>.
are these JPA Examples for openejb3 accessible now?:confused: couldn't find
from the Sep. beta release.
thx!
--
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Re: JPA Examples (was: Re: Setup tutorial?)
Posted by David Blevins <da...@visi.com>.
On Aug 29, 2007, at 1:54 AM, deniskulik wrote:
> David Blevins wrote:
>>
>>
>> If you let me know your jira id I can add you to the openejb-
>> contributors group and assign you any example you'd like.
>>
>> I think we may have some issues with persistence.xml support when
>> people go off the "happy path". Trying to get an app deployment to
>> fail due to bad jpa setup and not getting the kind of feedback I
>> would expect.
>>
>> -David
>>
>>
>
> Hi David
>
> My jira id is deniskulik, count me in for jpa examples first and I
> will
> start going through the rest of them later.
Hi Denis,
I went ahead and added pretty basic jpa example. It's not very
complicated on the JPA side and if you're still looking to contribute
any expansion of it would be great. Some entity relationships would
be fantastic.
-David
Re: JPA Examples ([jira] OPENEJB-360)
Posted by David Blevins <da...@visi.com>.
On Sep 5, 2007, at 11:09 PM, Jacek Laskowski wrote:
> On 8/29/07, deniskulik <de...@ukonline.co.uk> wrote:
>
>> My jira id is deniskulik
>
> It's in openejb-contributor group. Welcome aboard!
Yea, welcome! I've also assign you OPENEJB-360 "Example: Using JPA"
If you don't think you'll get around to it, just let us know and
we'll put it back into the pool.
-David
Re: JPA Examples (was: Re: Setup tutorial?)
Posted by Jacek Laskowski <ja...@laskowski.net.pl>.
On 8/29/07, deniskulik <de...@ukonline.co.uk> wrote:
> My jira id is deniskulik
It's in openejb-contributor group. Welcome aboard!
Jacek
--
Jacek Laskowski
http://www.JacekLaskowski.pl
Re: JPA Examples (was: Re: Setup tutorial?)
Posted by deniskulik <de...@ukonline.co.uk>.
David Blevins wrote:
>
>
> If you let me know your jira id I can add you to the openejb-
> contributors group and assign you any example you'd like.
>
> I think we may have some issues with persistence.xml support when
> people go off the "happy path". Trying to get an app deployment to
> fail due to bad jpa setup and not getting the kind of feedback I
> would expect.
>
> -David
>
>
Hi David
My jira id is deniskulik, count me in for jpa examples first and I will
start going through the rest of them later.
Denis
--
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