components packaged in your WAR. Mine are in a dependent JAR, not the
WAR itself. My jar file is pulled in via a maven dependency as
follows:
<dependency>
<groupId>svntools</groupId>
<artifactId>svntools-data</artifactId>
<version>1.2.1</version>
</dependency>
And my persistence.xml IS in the dependent jar. I've tried extracting
the persistence.xml out of the jar and putting it in the normal
location (/srv/main/resources/META-INF) and it DOES get packaged in
the WAR, but it still doesn't seem to make a difference to the GWT
War; I get the same exception when calling one of the services that
use it.
Should my next step be to copy all the source for the DAOs and
repackage it directly in my WAR? ...or should the GWT war be able to
use them from their packaged JAR directly?
On Aug 30, 11:22 am, Juan Pablo Gardella <gardellajuanpa...@gmail.com>
wrote:
> I have in the war
> file<https://bitbucket.org/gardellajuanpablo/gwt-sample/src/8aba86d82778/s...>a
> persistence.xml and don't have problems.
>
> 2011/8/30 randal cobb <rco...@gmail.com>
>
>
>
>
>
>
>
> > Yes, I've looked at that thread in several google searches. I think my
> > issue is that I'm using the jar possibly incorrectly in the GWT application.
> > There IS a persistence.xml file with "svntools-data" defined in it, but
> > it's packaged in the jar file with the OpenJPA entities and DAO components;
> > not as loose objects in the GWT War project. Here's my persistence.xml file
> > that, again, is packaged in the jar file; and again, it (the openjpa jar)
> > does work as expected in other projects not using GWT... I have an old JSP
> > based utility that is using it which I'm trying to modernize with GWT, so
> > the OpenJPA jar has been working for a couple of months. Here's the
> > relevant portion of my persistence.xml with the <provider> section as
> > indicated in your suggested thread.
>
> > <persistence-unit name="svntools-data"
>
> > transaction-type="RESOURCE_LOCAL">
>
> > <provider>
>
> > org.apache.openjpa.persistence.PersistenceProviderImpl
>
> > </provider>
>
> > <class>com.adp.mas.svntools.server.data.Defaults</class>
>
> > <class>com.adp.mas.svntools.server.data.Repositories</class>
>
> > <class>com.adp.mas.svntools.server.data.Excludes</class>
>
> > <class>com.adp.mas.svntools.server.data.MergeFolders</class>
>
> > <class>com.adp.mas.svntools.server.data.SystemCrontab</class>
>
> > <properties>
>
> > <property name="openjpa.ConnectionDriverName"
>
> > value="org.hsqldb.jdbc.JDBCDriver" />
>
> > <property name="openjpa.ConnectionURL"
>
> > value="jdbc:hsqldb:hsql://localhost/svntoolsdb" />
>
> > <property name="openjpa.ConnectionUserName" value="SA" />
>
> > <property name="openjpa.jdbc.DBDictionary"
>
> > value="hsql(SimulateLocking=true,SchemaCase=upper)" />
>
> > <property name="openjpa.jdbc.SynchronizedMappings"
>
> > value="buildSchema(ForeignKeys=true)" />
>
> > <property name="openjpa.Log"
>
> > value="DefaultLevel=WARN, Tool=INFO, SQL=TRACE" />
>
> > <property name="openjpa.RuntimeUnenhancedClasses"
>
> > value="supported" />
>
> > </properties>
>
> > </persistence-unit>
>
> > I think my issue is more that the GWT war can't find the jar'ed
> > persistence.xml file.
>
> > On Tue, Aug 30, 2011 at 10:52 AM, Juan Pablo Gardella <
> > gardellajuanpa...@gmail.com> wrote:
>
> >> This is not related to GWT, you don't define a persistence provider with
> >> the name *svntools-data. *Check this post
> >> <http://stackoverflow.com/questions/1158159/no-persistence-provider-fo...>to
> >> see similar problem, but with Hibernate.
>
> >> 2011/8/30 MadOtis <rco...@gmail.com>
>
> >>> Hello all,
>
> >>> I'm running into a little bit of a problem. I'm trying to use some
> >>> jar packaged OpenJPA entities in a GWT servelet service but I keep
> >>> getting a persistence exception. The OpenJPA entities are, again,
> >>> packaged in a separate jar file and are provided by a different
> >>> project (they all work great in other projects). Within the service,
> >>> I'm converting the OpenJPA entities into DTO objects, so I'm not
> >>> trying to pass actual connected JPA entities from the service back to
> >>> the client side of the house. I do have other services that do not
> >>> use OpenJPA that work as expected; it's just the handful of services
> >>> that are using the DAO/Entities from the jar. The war will not be
> >>> hosted in App Engine (rather a stand-alone war on Tomcat or some more
> >>> robust JEE container ), so I believe having to do a one-off version of
> >>> this jar for datanucleus shouldn't be needed (I hope).
>
> >>> I've tried extracting the persistence.xml file from the jar and hand-
> >>> placing it in the respective locations in the war project, but it
> >>> seems to not make any difference. Here's the relevant portion of the
> >>> stacktrace I get when the services try to fire (which tells me the
> >>> OpenJPA Entity Manager can't find the provider from persistence.xml):
>
> >>> at
> >>> org.mortbay.io.nio.SelectChannelEndPoint.run(SelectChannelEndPoint.java:
> >>> 395)
> >>> at org.mortbay.thread.QueuedThreadPool
> >>> $PoolThread.run(QueuedThreadPool.java:488)
> >>> Caused by: java.lang.ExceptionInInitializerError
> >>> at
> >>> com.adp.mas.svntools.server.data.DefaultsDAO.findAll(DefaultsDAO.java:
> >>> 193)
> >>> at
>
> >>> com.adp.mas.svntools.server.SVNMergeServiceImpl.getDefaults(SVNMergeService Impl.java:
> >>> 18)
> >>> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> >>> at
>
> >>> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:
> >>> 39)
> >>> at
>
> >>> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImp l.java:
> >>> 25)
> >>> at java.lang.reflect.Method.invoke(Method.java:597)
> >>> at
> >>> com.google.gwt.user.server.rpc.RPC.invokeAndEncodeResponse(RPC.java:
> >>> 569)
> >>> ... 22 more
> >>> Caused by: javax.persistence.PersistenceException: No persistence
> >>> providers available for "svntools-data" after trying the following
> >>> discovered implementations: NONE
> >>> at
>
> >>> javax.persistence.Persistence.createEntityManagerFactory(Persistence.java:
> >>> 182)
> >>> at
>
> >>> javax.persistence.Persistence.createEntityManagerFactory(Persistence.java:
> >>> 72)
> >>> at
>
> >>> com.adp.mas.svntools.server.data.EntityManagerHelper.<clinit>(EntityManager Helper.java:
> >>> 20)
>
> >>> Can anyone point me to any sort of documentation or example on how to
> >>> properly utilize an OpenJPA jar in a GWT War?
>
> >>> Thanks in advance!
> >>> Randy
>
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