persistence@glassfish.java.net

Re: J2SE example with toplink-essentials

From: Jakob Braeuchi <jbraeuchi_at_freesurf.ch>
Date: Sat, 01 Apr 2006 21:30:23 +0200

hi marina,

i used milestone 5, but i'll give milestone 6 a try.

thanks
jakob

Marina Vatkina schrieb:
> Jakob,
>
> Please use the latest GlassFish build.
>
> thanks,
> -marina
>
> Jakob Braeuchi wrote:
>> hi,
>>
>> i tried to run the example shown on this page:
>> https://glassfish.dev.java.net/javaee5/persistence/entity-persistence-support.html#Java_SE
>>
>>
>> i had some problems with an NPE when i create the entityManager withoud
>> an additional map:
>>
>> Persistence.createEntityManagerFactory("pu1");
>>
>> Exception in thread "main" java.lang.NullPointerException
>> at
>> oracle.toplink.essentials.internal.ejb.cmp3.JavaSECMPInitializer.callPredeploy(JavaSECMPInitializer.java:140)
>>
>> at
>> oracle.toplink.essentials.internal.ejb.cmp3.JavaSECMPInitializer.initPersistenceUnits(JavaSECMPInitializer.java:282)
>>
>> at
>> oracle.toplink.essentials.internal.ejb.cmp3.JavaSECMPInitializer.initialize(JavaSECMPInitializer.java:301)
>>
>> at
>> oracle.toplink.essentials.internal.ejb.cmp3.JavaSECMPInitializer.initializeFromMain(JavaSECMPInitializer.java:338)
>>
>> at
>> oracle.toplink.essentials.internal.ejb.cmp3.JavaSECMPInitializer.getJavaSECMPInitializer(JavaSECMPInitializer.java:78)
>>
>> at
>> oracle.toplink.essentials.ejb.cmp3.EntityManagerFactoryProvider.getServerSession(EntityManagerFactoryProvider.java:251)
>>
>> at
>> oracle.toplink.essentials.ejb.cmp3.EntityManagerFactoryProvider.createEntityManagerFactory(EntityManagerFactoryProvider.java:96)
>>
>> at
>> javax.persistence.Persistence.createEntityManagerFactory(Persistence.java:59)
>>
>> at
>> javax.persistence.Persistence.createEntityManagerFactory(Persistence.java:48)
>>
>> at client.Client.main(Client.java:48)
>>
>>
>> Persistence.createEntityManagerFactory("pu1", new HashMap()); works.
>>
>> another problem is the the persistence.xml shown on the same page.
>>
>> the properties prefixed with toplink did not work for me:
>>
>> <property name="toplink.jdbc.driver" value="<database driver>"/>
>> <property name="toplink.jdbc.url" value="<database url>"/>
>> <property name="toplink.jdbc.user" value="<user>"/>
>> <property name="toplink.jdbc.password" value="<password>"/>
>>
>> whith these properties (without toplink prefix) the example ran fine:
>>
>> <property name="toplink.platform.class.name"
>> value="oracle.toplink.essentials.platform.database.MySQL4Platform"/>
>>
>> <property name="jdbc.driver" value="com.mysql.jdbc.Driver"/>
>> <property name="jdbc.connection.string"
>> value="jdbc:mysql://localhost:3306/mydb"/>
>> <property name="jdbc.user" value="myuser"/>
>> <property name="jdbc.password" value="mypwd"/>
>>
>>
>> jakob braeuchi
>
>