Simply export your datasource service using the XADataSource interface, and
import it with a jndi name like:
osgi:service/javax.sql.XADataSource/(foo=bar)
The JPA container will detect the XA interface and do the wrapping
automatically.
Date: Sat, 20 Oct 2012 15:25:20 +0200
From: christian.eugs...@gmx.net
To: user@aries.apache.org
Subject: Re: Aries eclipselink.adapter
Hi Tim, thank you for your considerations. I have ordered the
book some time ago but I am still waiting for it to arrive. To
your proposes: I would like to have the JPA container do the enlistment.
How do I achieve this?
Thanks!
Christian
Am 20.10.12 11:55, schrieb Timothy
Ward:
Hi,
I'm afraid I haven't had time to do a full review, but from the
log I see that your datasource services are both being
registered by blueprint using the DataSource interface.
Unless you're enlisting the JTA datasource with transactions
yourself then this looks like the source of the problem. If you
want the Aries runtime to do the enlistment then you need to
register the datasource as an XADataSource.
There are then two options:
1. You can let the transaction wrappers bundle do the
enlistment and add (xa=true) to your JTA-data-source jndi name
2. You can let the JPA container do the enlistment by changing
the JTA-data-source jndi name to use XADataSource as the
interface. This will only work for Aries JPA 1.0 and higher.
If you are after more information about setting up OSGi
applications with JPA then there's a whole chapter about it in
Enterprise OSGi in Action, along with chapters about tools,
testing, web applications and remoting. You can get it at
http://www.manning.com/cummins and get 37% off using the code
eosgi37.
I hope this helps you get set up ok.
Regards,
Tim
Date: Mon, 15 Oct 2012 01:55:59 +1030
From: a...@solveitsoftware.com
To: user@aries.apache.org
Subject: Re: Aries eclipselink.adapter
Thank you, Timothy.
I use the current release 1.0.0 of aries
http://aries.apache.org/downloads/currentrelease.html
I have attached the blueprint context files - blueprint seems
to be the only way at the moment to use declarative, AOP
style, transactions support.
And the test class invoked in blueprint-test.xml
blueprint-datasource.xml -- blueprint context of the database
bundle
blueprint-employee.xml - blueprint of employee bundle
blueprint-test - blueprint of the integration test routines
bundle
persistence-jta.xml - the JPA/JTA persistence unit
configuration
I must confess, that I don't know what is auto-enlisting
datasource.
Regards,
Anatoly
PS I also attached the log of the test with the deliberately
induced sql error. The rollback is announced, but all the
insert statements, except for the offending one, still get
committed, including the cascade insertions.
So, no actual rollback is performed.
On 12/10/2012 9:40 PM, Timothy Ward wrote:
Hi Anatoly,
I'd be interested in seeing the configuration for the
transactions that failed to roll back, and in knowing what
version of Aries JPA you were using. If you don't give the
JPA container an auto-enlisting datasource then you can end
up with non-transactional behaviour.
This is why we have the transaction-wrappers bundle.
Tim
> Date: Fri, 12 Oct 2012 09:46:39 +1030
> From: a...@solveitsoftware.com
> To: user@aries.apache.org
> Subject: Re: Aries eclipselink.adapter
>
> Yeah, that's what I did a month ago:
>
> ~/projects/aries/jpa/jpa-container-eclipselink-adapter
> --- pom.xml (revision 1388340)
> +++ pom.xml (working copy)
> @@ -81,7 +81,10 @@
> <dependency>
> <groupId>org.apache.aries</groupId>
>
<artifactId>org.apache.aries.util</artifactId>
> + <version>1.0.0</version>
> +<!--
> <version>0.4</version>
> +-->
> <scope>provided</scope>
> </dependency>
> </dependencies>
>
> Still, the transactions don't work as expected neither
with eclipselink
> nor with openjpa.
> For instance, if two methods participate in the
transaction (the same of
> tx id testified that that was the case),
> and the second fails, then the first one still got
committed.
> The message was that transaction is nominated to
rollback, but then
> Rollback exception followed.
>
> I send the message some time ago to the user list
asking if anyone knows
> why the eclipse link adapter has never been included
into the release.
> And what the actual status of it.
> Anyway, as far as my experience go the the aries
container failed for me
> on transactional support.
>
>
> On 11/10/2012 8:51 PM, Christian Eugster wrote:
> > Hi,
> >
> > I managed this by changing the version range of
aries.util in the pom.
> >
> > But now I have another problem. After packaging I
tried to run an
> > example in the osgi-container. I get a
ComponentDefinitionException
> > saying Unable to validate xml: Caused by
SAXParseException saying:
> > cvc-complex-type.2.3: Element 'blueprint' cannot
have character
> > [children], because the type's content is
element-only.
> >
> > My blueprint looks like following:
> >
> > <?xml version="1.0" encoding="utf-8"?>
> > <blueprint xmlns="http://www.osgi.org/xmlns/blueprint/v1.0.0";
> > xmlns:tx="http://aries.apache.org/xmlns/transactions/v1.0.0";
> > xmlns:jpa="http://aries.apache.org/xmlns/jpa/v1.1.0";>
> > >
> > <bean
> > id="testDAOBean"
> > class="ch.persistence.TestDAOImpl"
> > >
> > <tx:transaction method="*"
value="Required"/>
> > <jpa:context property="em"
unitname="herakles"/>
> > </bean>
> > </blueprint>
> >
> > as I see, there are no character children. But
what am I doing wrong?
> >
> > Thank you for help!
> >
> >
> >
>
>
> --
> Anatoly Osiko
> Software Engineer, Integration
> SolveIT Software Pty Ltd
>
> Adelaide | Brisbane | Chisinau | Melbourne | Perth
>
> D: +61 8 7071 4918
> T: +61 8 8221 5533
> M: +61 4 1980 0386
> F: +61 8 8221 5677
>
> SolveIT Software Building
> Level 1, 99 Frome Street,
> Adelaide, SA 5000
>
> www.SolveITSoftware.com
>
>
--
Anatoly Osiko
Software Engineer, Integration
SolveIT Software Pty Ltd
Adelaide | Brisbane | Chisinau | Melbourne | Perth
D: +61 8 7071 4918
T: +61 8 8221 5533
M: +61 4 1980 0386
F: +61 8 8221 5677
SolveIT Software Building
Level 1, 99 Frome Street,
Adelaide, SA 5000
www.SolveITSoftware.com
