Thanks datanucleus!
I thought about the @Unowned annotation but I didn't have the
datanucleus-appengine-2.0.0-RC2.jar in my eclipse build path...
Unfortunately I'm not out of the woods yet. I downloaded and built the
jars from the the svn trunk, and I modified my entities to match
exactly the mapping defined in the JPAManyToManyTest.java from the
unit tests in that project, but when I run my application locally via
eclipse, I get this exception:
Caused by: com.google.appengine.datanucleus.EntityUtils
$ChildWithoutParentException: Detected attempt to establish This(2) as
the parent of That(3) but the entity identified by That(3) has already
been persisted without a parent. A parent cannot be established or
changed once an object has been persisted.
at
com.google.appengine.datanucleus.EntityUtils.checkParentage(EntityUtils.java:
577)
at
com.google.appengine.datanucleus.scostore.FKSetStore.add(FKSetStore.java:
171)
at org.datanucleus.store.types.sco.backed.Set.add(Set.java:562)
Seems like at runtime the @Unowned is being ignored? Not sure if this
is a classpath issue or maybe something to do with running it locally
in Eclipse using the GAE plugin? I'm not really sure what else to look
for at this point so if you have any ideas for anything else I can
check I'd really appreciate it.
THanks again for the response...
On Jan 22, 11:11 am, datanucleus <andy_jeffer...@yahoo.com> wrote:
> To make a relation unowned (in v2) you mark (both sides if
> bidirectional) as @Unowned
> Unowned M-N work fine with SVN trunk code, though there may have been
> some things incomplete in RC versions
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