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From Aitor Iturriondobeitia <laudio.i...@gmail.com>
Subject Re: openjpa, maven and persistence.xml. help me please
Date Tue, 19 Feb 2013 09:49:34 GMT
thanks
i have more information about this.
i think that is not jpa problem. My poersistencefile is into the META-INF.
I think tha is maven problem.
when i intall (compile) my applicaion without the parent it runs ok but
when i intall from the parent it does't run
what do you think about this? do you occur anythig?
thanks


2013/2/18 Kevin Sutter <kwsutter@gmail.com>

> Welcome to the OpenJPA project!  Depending on your environment, getting the
> Enhancement processing to find your persistence.xml can be tricky
> sometimes.  I'm assuming you have looked at the available documentation for
> getting this setup properly [1].  The key is probably in the error message
> you received:
>
> "..Ensure that you have a
> META-INF/persistence.xml file, that it is available in your classpath, or
> that the properties file you are using for configuration is available."
>
> The contents of your persistence.xml looks fine, so the issue is probably
> with just finding your persistence.xml.  You have to ensure that this is
> available via your classpath that is used for your enhancement processing.
> With maven, it's sometimes useful to run with the -X option to see how your
> properties, environment variables, and classpaths are getting setup.
>
> Another idea that is simple is to use the javaagent approach for getting
> the enhancement processing done.  This is especially useful for test
> purposes, but can also be used for jse production usage.
>
> Sorry that we don't have a definitive answer for you.  It looks like some
> experimentation and understanding of your specific environment will be
> required to get the enhancement done.  Good luck!  Please post back with
> either success or continued issues.  Thanks.
>
> This has nothing to do with your enhancement processing, but I would
> suggest adding another property to your persistence.xml which will help
> with foreign key processing:
> <property name="openjpa.jdbc.SynchronizeMappings"
> value="buildSchema(ForeignKeys=true)"/>
>
> Kevin
>
>
> [1]  http://openjpa.apache.org/entity-enhancement.html
>
> On Mon, Feb 18, 2013 at 10:37 AM, laudio.info <laudio.info@gmail.com>
> wrote:
>
> > Hello
> > i am trying to make my fisrt openjpa project.
> > i am using maven.
> > i have create the persistence.xml file (bellow) but when i try to compile
> > my projects appears one error:
> > [INFO] [openjpa:test-enhance {execution: enhancer}]
> > [INFO]
> > ------------------------------------------------------------------------
> > [ERROR] FATAL ERROR
> > [INFO]
> > ------------------------------------------------------------------------
> > [INFO] MetaDataFactory could not be configured
> > (conf.newMetaDataFactoryInstance() returned null). This might mean that
> no
> > configuration properties were found. Ensure that you have a
> > META-INF/persistence.xml file, that it is available in your classpath, or
> > that the properties file you are using for configuration is available. If
> > you are using Ant, please see the <properties> or <propertiesFile>
> > attributes of the task's nested <config> element. This can also occur if
> > your OpenJPA distribution jars are corrupt, or if your security policy is
> > overly strict.
> > [INFO]
> > ------------------------------------------------------------------------
> > [INFO] Trace
> > <openjpa-2.1.1-r422266:1148538 fatal user error>
> > org.apache.openjpa.util.MetaDataException: MetaDataFactory could not be
> > configured (conf.newMetaDataFactoryInstance() returned null). This might
> > mean that no configuration properties were found. Ensure that you have a
> > META-INF/persistence.xml file, that it is available in your classpath, or
> > that the properties file you are using for configuration is available. If
> > you are using Ant, please see the <properties> or <propertiesFile>
> > attributes of the task's nested <config> element. This can also occur if
> > your OpenJPA distribution jars are corrupt, or if your security policy is
> > overly strict.
> >  at
> >
> >
> org.apache.openjpa.meta.MetaDataRepository.initializeMetaDataFactory(MetaDataRepository.java:1904)
> >  at
> >
> >
> org.apache.openjpa.meta.MetaDataRepository.endConfiguration(MetaDataRepository.java:1885)
> >  at
> >
> >
> org.apache.openjpa.lib.conf.Configurations.configureInstance(Configurations.java:518)
> >  at
> >
> >
> org.apache.openjpa.lib.conf.Configurations.configureInstance(Configurations.java:443)
> >
> > My persistence.xml file is into the META-INF directory and has this:
> > <?xml version="1.0" encoding="UTF-8"?>
> > <persistence xmlns="http://java.sun.com/xml/ns/persistence"
> version="2.0">
> >   <persistence-unit name="example" transaction-type="RESOURCE_LOCAL">
> >
> >
> <provider>org.apache.openjpa.persistence.PersistenceProviderImpl</provider>
> >     <class>com.caf.db.jpa.entities.Myrequest</class>
> >     <class>com.caf.db.jpa.entities.Myresponse</class>
> >     <properties>
> >      <property name="openjpa.jdbc.SynchronizeMappings"
> value="buildSchema"
> > />
> >   <property name="openjpa.ConnectionDriverName"
> > value="org.apache.derby.jdbc.EmbeddedDriver" />
> >   <property name="openjpa.ConnectionURL"
> > value="jdbc:derby:C:\Curro\My\prototipoWorkspace\MyDB\MyDB" />
> >   <property name="openjpa.ConnectionUserName" value="" />
> >   <property name="openjpa.ConnectionPassword" value="" />
> >     </properties>
> >   </persistence-unit>
> > </persistence>
> >
> > thanks
> >
>

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