| RE: [eclipselink-users] project.xml and JPA annotations |
You can assign a CMP3Policy using the following code in your
SessionCustomizer,
Project project = session.getProject();
for (Iterator iterator =
project.getDescriptors().values().iterator(); iterator.hasNext();){
ClassDescriptor descriptor = (ClassDescriptor)iterator.next();
if (descriptor.getCMPPolicy() == null) {
descriptor.setCMPPolicy(new CMP3Policy());
}
}
EclipseLink does assign this to all descriptors during JPA deployment,
however the customizers are the last thing to run during deployment, so any
descriptors added need to have this set. EclipseLink could probably do this
check after the customizers run, so feel free to log a bug for that.
fcalfo wrote:
>
> Thanks - I think I'm getting close - I setup the SessionCustomizer to add
> the descriptors from the Workbench project but when I try to use the
> EntityManager find method to read an object that was mapped in the
> Workbench project, I get a NullPointerException:
>
> java.lang.NullPointerException
> at
> org.eclipse.persistence.internal.jpa.EntityManagerImpl.findInternal(EntityManagerImpl.java:477)
> at
> org.eclipse.persistence.internal.jpa.EntityManagerImpl.find(EntityManagerImpl.java:428)
> at
> org.eclipse.persistence.internal.jpa.EntityManagerImpl.find(EntityManagerImpl.java:336)
>
>
> Somehow, the cmpPolicy is being set automatically for the JPA annotated
> classes to: org.eclipse.persistence.internal.jpa.CMP3Policy
>
> but it is null on the descriptor from the Workbench project.
>
> Is there something else I have to define in the Workbench Project or
> persistence defaults etc to get this to work?
>
>
> Sebastien Tardif-2 wrote:
>>
>> Workaround described here:
>> http://forums.oracle.com/forums/thread.jspa?forumID=48&threadID=887041
>>
>>
>
>
-----
---
http://wiki.eclipse.org/User:James.sutherland.oracle.com James Sutherland
http://www.eclipse.org/eclipselink/
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TopLink
Wiki: http://wiki.eclipse.org/EclipseLink EclipseLink ,
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http://www.nabble.com/EclipseLink-f26430.html EclipseLink
Book: http://en.wikibooks.org/wiki/Java_Persistence Java Persistence
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