Hi
Gordon,
many
thanks for your fast response!
To
answer your question:
1.
For
testing I try to use eclipselink in Java SE enviroment, without
application server.
In
production there will be a apache tomcat (but not used as Java EE
server)
2.
I
think so, here is my persistence.xml
<?xml version="1.0"
encoding="UTF-8"?>
<persistence xmlns="http://java.sun.com/xml/ns/persistence" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
version="1.0" xsi:schemaLocation="http://java.sun.com/xml/ns/persistence
http://java.sun.com/xml/ns/persistence/persistence_1_0.xsd">
<persistence-unit name="">
<provider>org.eclipse.persistence.jpa.PersistenceProvider</provider>
<class>com.emd.testpersistence.PhaMatLoc</class>
<class>com.emd.testpersistence.PhaMatSales</class>
<class>com.emd.testpersistence.PhaMaterial</class>
<class>com.emd.testpersistence.PhaProduct</class>
<class>com.emd.testpersistence.SecVUserPrivDissolve</class>
<properties>
<property name="eclipselink.session-name"
value="my-session"/>
<property name="eclipselink.logging.level"
value="FINE"/>
<property name="eclipselink.jdbc.driver"
value="oracle.jdbc.OracleDriver"/>
<property name="eclipselink.jdbc.url"
value="jdbc:oracle:thin:@d11n02p02.merck.de:1521:rc02"/>
</properties>
</persistence-unit>
with toplink essentials I didn't need to use
<provider>...</provider>
But here it doesn't seem to work.
3.
Yes, I see no other exception. And Eclipselink seems to do already
something before, I get messages like
[EPS Config]: 2008.03.11
02:34:35.782--ServerSession(471035)--Thread(Thread[main,5,main])--The
column name for element [private java.lang.String
com.emd.testpersistence.PhaMatLoc.lcomp] is being defaulted to:
LCOMP.
before the exception comes.
4.
Currently
I use eclipselink-incubation-1.0M5, using
eclipselink-incubation-20080228 results in the following error:
Exception in thread "main" Local
Exception Stack:
Exception [EclipseLink-30005]
(Eclipse Persistence Services - 1.0 (Build SNAPSHOT - 20080228)):
org.eclipse.persistence.exceptions.PersistenceUnitLoadingException
Exception Description: An
exception was thrown while searching for persistence archives with
ClassLoader: sun.misc.Launcher$AppClassLoader@133056f
Internal Exception:
javax.persistence.PersistenceException: Exception [EclipseLink-28018] (Eclipse
Persistence Services - 1.0 (Build SNAPSHOT - 20080228)):
org.eclipse.persistence.exceptions.EntityManagerSetupException
Exception Description:
Predeployment of PersistenceUnit [] failed.
Internal Exception:
java.util.ConcurrentModificationException
at
org.eclipse.persistence.exceptions.PersistenceUnitLoadingException.exceptionSearchingForPersistenceResources(PersistenceUnitLoadingException.java:121)
at
org.eclipse.persistence.jpa.PersistenceProvider.createEntityManagerFactory(PersistenceProvider.java:86)
at
javax.persistence.Persistence.createEntityManagerFactory(Persistence.java:83)
at
com.emd.testpersistence.MyEntityManager.main(MyEntityManager.java:89)
Caused by: javax.persistence.PersistenceException: Exception [EclipseLink-28018] (Eclipse
Persistence Services - 1.0 (Build SNAPSHOT - 20080228)):
org.eclipse.persistence.exceptions.EntityManagerSetupException
Exception Description:
Predeployment of PersistenceUnit [] failed.
Internal Exception:
java.util.ConcurrentModificationException
at
org.eclipse.persistence.internal.jpa.EntityManagerSetupImpl.predeploy(EntityManagerSetupImpl.java:809)
at
org.eclipse.persistence.internal.jpa.JavaSECMPInitializer.callPredeploy(JavaSECMPInitializer.java:130)
at
org.eclipse.persistence.internal.jpa.JavaSECMPInitializer.initPersistenceUnits(JavaSECMPInitializer.java:198)
at
org.eclipse.persistence.internal.jpa.JavaSECMPInitializer.initialize(JavaSECMPInitializer.java:213)
at
org.eclipse.persistence.jpa.PersistenceProvider.createEntityManagerFactory(PersistenceProvider.java:72)
... 2 more
Caused by: Exception
[EclipseLink-28018] (Eclipse Persistence Services - 1.0 (Build
SNAPSHOT - 20080228)): org.eclipse.persistence.exceptions.EntityManagerSetupException
Exception Description:
Predeployment of PersistenceUnit [] failed.
Internal Exception:
java.util.ConcurrentModificationException
at
org.eclipse.persistence.exceptions.EntityManagerSetupException.predeployFailed(EntityManagerSetupException.java:209)
... 7 more
Caused by: java.util.ConcurrentModificationException
at
java.util.HashMap$HashIterator.nextEntry(Unknown Source)
at
java.util.HashMap$ValueIterator.next(Unknown Source)
at
org.eclipse.persistence.internal.jpa.metadata.MetadataProcessor.processAnnotations(MetadataProcessor.java:239)
at
org.eclipse.persistence.internal.jpa.deployment.PersistenceUnitProcessor.processORMetadata(PersistenceUnitProcessor.java:272)
at
org.eclipse.persistence.internal.jpa.EntityManagerSetupImpl.predeploy(EntityManagerSetupImpl.java:766)
... 6 more
best
regards,
Alex
-----
Ursprüngliche Mail ----
Von: Gordon Yorke
<gordon.yorke@xxxxxxxxxx>An:
EclipseLink User Discussions
<eclipselink-users@xxxxxxxxxxx>Gesendet:
Dienstag, den 11. März 2008, 14:16:56 Uhr
Betreff: Re:
[eclipselink-users] No Persistence provider for EntityManager - Error
when using EclipseLink
Hello Alex,
What application
server are you running in? Are you specifying the
Persistence provider in your persistence.xml file? Is that
the only
exception that you see? Are you using the latest
nightly from EclipseLink?
--Gordon
Alex_S wrote:
> Hi
everybody,
>
>
> I have tried to switch my
application from Toplink Essentials to
> Eclipselink, but it
currently doesn't work.
>
> After replacing the jar
library and doing the necessary changes in
> persistence.xml and
source code I always get an
>
> Exception in thread "main"
javax.persistence.PersistenceException: No
> Persistence
provider for EntityManager named default
>
at
>
javax.persistence.Persistence.createEntityManagerFactory(Persistence.java:89)
>
at
com.emd.testpersistence.MyEntityManager.main(MyEntityManager.java:89)
>
>
>
Thx for help,
> Alex
>
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