I see. Yes, EventManager needs to be provided to the DataDomain. So this is not a bug in Cayenne, and I am not sure how we can "fix" it. Injection of EventManager is tied to the lifecycle, so using an arbitrary EM doesn't seem to be a good solution. Maybe we'll simply document this behavior via Javadocs....

A side note regarding the *default* EventManager, there are plans to deprecate and avoid using it in Cayenne internally, as the singleton makes configuration much less flexible.

Andrus

On Oct 4, 2007, at 4:09 PM, Emilian Bold wrote:

I finally figured out what my bug was (it wasn't CAY-796 actually).

See https://issues.apache.org/cayenne/browse/CAY-871

Emilian

On 9/17/07, Emilian Bold <[EMAIL PROTECTED]> wrote:
Thanks, that's great. I'll wait for the official 2.0.4 as I've found a
workaround in my situation (still trying to figure out the exact
cause, I think some rich-client is serializing CayenneDataObjects
directly instead of client classes).

Emilian


On 9/15/07, Andrus Adamchik <[EMAIL PROTECTED]> wrote:
Ok, I fixed CAY-796 for 1.2, 2.0, 3.0 branches. To get a fixed
version you can either build the code from Subversion [1,2] or wait
till 2.0.4 comes out.

Cheers,
Andrus

[1] http://svn.apache.org/repos/asf/cayenne/main/branches/ STABLE-2.0/
[2] http://cayenne.apache.org/legacy-ant-build.html


On Sep 12, 2007, at 7:54 PM, Andrus Adamchik wrote:
Hi there,

Yeah, looks like CAY-796 [1] to me. I could swear we fixed it, but
looks like we did not. Ok, adding that to a TODO list...

In the meantime try to check the "Use Shared Cache" checkbox in the
Modeler - this would hopefully take care of the problem (and
probably improve your performance if you could live with a bit of
object caching in your app).

Andrus


[1] https://issues.apache.org/cayenne/browse/CAY-796


On Sep 12, 2007, at 6:18 PM, Emilian Bold wrote:

Hy,

I keep getting this exception:

java.lang.NullPointerException
at org.apache.cayenne.access.DataRowStore.sendUpdateNotification
(DataRowStore.java:673)
at org.apache.cayenne.access.DataRowStore.processSnapshotChanges
(DataRowStore.java:538)
     at
org.apache.cayenne.access.DataRowStore.snapshotsUpdatedForObjects
(DataRowStore.java:278)
at org.apache.cayenne.access.ObjectResolver.objectsFromDataRows
(ObjectResolver.java:121)
     at
org.apache.cayenne.access.ObjectResolver.synchronizedObjectsFromDa taR
ows(ObjectResolver.java:97)
     at
org.apache.cayenne.access.DataDomainQueryAction.interceptObjectCon ver
sion(DataDomainQueryAction.java:319)
     at org.apache.cayenne.access.DataDomainQueryAction.execute
(DataDomainQueryAction.java:116)
at org.apache.cayenne.access.DataDomain.onQuery (DataDomain.java:730)
     at org.apache.cayenne.util.ObjectContextQueryAction.runQuery
(ObjectContextQueryAction.java:217)
     at org.apache.cayenne.access.DataContextQueryAction.execute
(DataContextQueryAction.java:54)
at org.apache.cayenne.access.DataContext.onQuery (DataContext.java:
1387)
     at org.apache.cayenne.access.DataContext.performQuery
(DataContext.java:1376)
...

on Cayenne 2.0.2.

This seems to happen always for the same Local EJB, while other Local EJBs that use Cayenne in the same way seem to work. From a previous
email, it seems this has something to do with the serialization of
the
objectStore.

What can I do to get rid of this ?

Thanks,
Emilian Bold




--
Emilian Bold
+40 740235562
http://www.emilianbold.ro

Java and NetBeans Platform-loving consulting services from
Timisoara, Romania.







--
Emilian Bold
+40 740235562
http://www.emilianbold.ro

Java and NetBeans Platform-loving consulting services from Timisoara, Romania.



--
Emilian Bold
+40 740235562
http://www.emilianbold.ro

Java and NetBeans Platform-loving consulting services from Timisoara, Romania.


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