Hi Krzysztof, We're hoping to have the book out in a few months. There is no early access program :(
-Jamie On Wed, Apr 16, 2014 at 4:27 AM, Christian Schneider <[email protected]> wrote: > What the log says is that your bundle requires an EntityManagerFactory for > the persistence unit test but can not find one. > > Unfortunately there are several possible reasons and aries jpa does not show > good errors. > > 1. Possibly your Manifest does not contain the Meta-Persistence entry. > > Make sure you have this in the maven bundle plugin config: > <Meta-Persistence>META-INF/persistence.xml</Meta-Persistence> > > 2. There are no providers available hints that aries jpa does not find a > PersitenceProvider service. I had this with hibernate 3.3.x. It published a > service but the > with the jpa 2.1 version of the package. So aries jpa did not see it. Check > the headers of openjpa and aries jpa container if this is the case. > JB told me he is preparing a patch for aries jpa to have a wider import > range for the jpa spec packages. Until then make sure you use an older > version > of the persistence provider that works with jpa 2.0. > > 3. Possibly the persistence context is found but there is an error > initializing it. Aries jpa swallows these errors. There is a patch in this > issue that solves this: > https://issues.apache.org/jira/browse/ARIES-1160 > > From the log It think variant 2 is the most probable. I just tried to > install jpa and openjpa in karaf 3.0.1 but it seems to use jpa 2.0 so that > speaks against this case. > > Christian > > > > On 15.04.2014 22:26, Nick Stuart wrote: > > Hi all, I am having issues getting a very simple JPA example running, and I > am out of ideas on where to head next. > > I pretty much have the same problem described here: > http://karaf.922171.n3.nabble.com/JPA-with-Karaf-td4031000.html > The posts there suggest it should be fixed with 3.0.1 (which I am using), > but it does not appear to be. The very odd thing is that I did get it > working once, but now it's broken again and I don't know why. > > I've installed the following features, transaction,jpa,openjpa,jndi, and > jdbc. I can connect to the database through the JDBC commands and all of > that is working just fine. My bundle will not start though. > > Here are the log messages I get when installing my bundle: > > 2014-04-15 16:11:28,366 | WARN | Local user karaf | container > | 114 - org.apache.aries.jpa.container - 1.0.0 | There are no providers > available. > 2014-04-15 16:11:28,367 | INFO | Local user karaf | Activator > | 244 - com.pww.test.demo - 1.0.0.SNAPSHOT | Hello updated!! > 2014-04-15 16:11:28,372 | INFO | Local user karaf | BlueprintContainerImpl > | 19 - org.apache.aries.blueprint.core - 1.4.0 | Bundle com.pww.test.demo is > waiting for dependencies > [(&(&(org.apache.aries.jpa.proxy.factory=true)(osgi.unit.name=test))(objectClass=javax.persistence.EntityManagerFactory))] > 2014-04-15 16:11:28,373 | WARN | Local user karaf | container > | 114 - org.apache.aries.jpa.container - 1.0.0 | There are no providers > available. > > and the out of running `ls | grep persistence`: > > karaf@root(jdbc)> ls | grep persistence > [javax.persistence.spi.PersistenceProvider] > javax.persistence.provider = > org.apache.openjpa.persistence.PersistenceProviderImpl > javax.persistence.spi.PersistenceProvider = > org.apache.openjpa.persistence.PersistenceProviderImpl > > Not really sure what to look at next. Any thoughts or ideas would be great. > > Thanks! > > > > -- > Christian Schneider > http://www.liquid-reality.de > > Open Source Architect > http://www.talend.com
