[appengine-java] Object Manager has been closed on 2 synchronous requests

2010-04-08 Thread Arny
Hi,

I'm getting an JDO/Nucleus exception when running 2 synchronous
requests on different ids of an object:
org.datanucleus.exceptions.NucleusUserException: Object Manager has
been closed

---
This is how my getById looks like:

PersistenceManager pm = getPM();
Stream stream = null;
try {
Stream tmp = pm.getObjectById(Stream.class, id);
stream = pm.detachCopy(tmp);
} finally {
pm.close(); // here the exception occurs
}
return stream;

---

It works fine on single request, but fails on 2 or more.
anyone know how to get around this?

Thanks

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Re: [appengine-java] Object Manager has been closed on 2 synchronous requests

2010-04-08 Thread bimbo jones
hi,

you should only close the persistence manager when your done.
This error occurs because you try to close it a second time.
Once you do the pm.close() all the data will be updated

2010/4/8 Arny arny...@googlemail.com

 Hi,

 I'm getting an JDO/Nucleus exception when running 2 synchronous
 requests on different ids of an object:
 org.datanucleus.exceptions.NucleusUserException: Object Manager has
 been closed

 ---
 This is how my getById looks like:

PersistenceManager pm = getPM();
Stream stream = null;
try {
Stream tmp = pm.getObjectById(Stream.class, id);
stream = pm.detachCopy(tmp);
} finally {
pm.close(); // here the exception occurs
}
return stream;

 ---

 It works fine on single request, but fails on 2 or more.
 anyone know how to get around this?

 Thanks

 --
 You received this message because you are subscribed to the Google Groups
 Google App Engine for Java group.
 To post to this group, send email to
 google-appengine-j...@googlegroups.com.
 To unsubscribe from this group, send email to
 google-appengine-java+unsubscr...@googlegroups.comgoogle-appengine-java%2bunsubscr...@googlegroups.com
 .
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 http://groups.google.com/group/google-appengine-java?hl=en.



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