Yeah, I would definitely suggest to upgrade. Upgrade should be rather
straightforward. Follow the UPGRADE-NOTES.txt.
Andrus
On Sep 8, 2010, at 5:58 AM, Hans Pikkemaat wrote:
> Hi,
>
> This seems to be an issue in cayenne 2.0.4.
>
> In 3.0 it works fine.
>
> There are reasons why I cannot simply upgrade to 3.
> Is there a work around for this problem to get it to work in cayenne 2.0.4?
>
> tx
>
> Hans
>
> On 9/8/10 10:31 AM, Hans Pikkemaat wrote:
>> Hi,
>>
>> I did not explain my test case in enough detail.
>>
>> I have table testhpi, testhpi2 and testhpi3.
>>
>> There are relationships
>>
>> testhpi: testhpi2Array
>> testhpi: testhpi3Array
>> testhpi2: testhpi3Array
>>
>> I use a joint prefetches
>>
>>
>> query.addPrefetch("testhpi2Array").setSemantics(PrefetchTreeNode.JOINT_PREFETCH_SEMANTICS);
>>
>> query.addPrefetch("testhpi2Array.testhpi3Array").setSemantics(PrefetchTreeNode.JOINT_PREFETCH_SEMANTICS);
>>
>> At some point I run the query and get correct results.
>> It runs one big query where all records are retrieved.
>>
>> But at some point I also retrieve the testhpi3 records through the
>> teshtpi.testhpi3Array releationship.
>> There is no prefetch for this one so a separate query is run and I get the
>> correct results. Actually I
>> get the same objects as in the big query.
>>
>> Now it comes.
>>
>> I delete a record from testhpi3 and reinsert it.
>>
>> If I now run the first query the query is executed and the objects are
>> refreshed.
>> One object is replaced with a new one as it was deleted and re-inserted.
>> This is all good.
>>
>> But if I run the second query it is not re-executed (no prefetch?) and I get
>> an old result.
>> This seems logical as there is no prefetch.
>> So I added the prefetch
>>
>>
>> query.addPrefetch("testhpi2Array").setSemantics(PrefetchTreeNode.JOINT_PREFETCH_SEMANTICS);
>>
>> But now I get this exception
>>
>> Exception in thread "main" org.apache.cayenne.CayenneRuntimeException:
>> [v.2.0.4 October 12 2007] Query exception.
>> at
>> org.apache.cayenne.access.DataDomainQueryAction.nextQueryException(DataDomainQueryAction.java:428)
>> at org.apache.cayenne.access.DataNode.performQueries(DataNode.java:280)
>> at
>> org.apache.cayenne.access.DataDomainQueryAction.runQuery(DataDomainQueryAction.java:301)
>> at
>> org.apache.cayenne.access.DataDomainQueryAction.access$000(DataDomainQueryAction.java:60)
>> at
>> org.apache.cayenne.access.DataDomainQueryAction$1.transform(DataDomainQueryAction.java:273)
>> at
>> org.apache.cayenne.access.DataDomain.runInTransaction(DataDomain.java:836)
>> at
>> org.apache.cayenne.access.DataDomainQueryAction.runQueryInTransaction(DataDomainQueryAction.java:270)
>> at
>> org.apache.cayenne.access.DataDomainQueryAction.execute(DataDomainQueryAction.java:110)
>> at org.apache.cayenne.access.DataDomain.onQuery(DataDomain.java:746)
>> 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:1395)
>> at
>> org.apache.cayenne.access.DataContext.performQuery(DataContext.java:1384)
>> at cayenne.TryStuff.go(TryStuff.java:60)
>> at cayenne.TryStuff.main(TryStuff.java:100)
>> Caused by: java.lang.IllegalArgumentException: No inheritance - there must
>> be only one override set
>> at
>> org.apache.cayenne.access.jdbc.DataRowPostProcessor.<init>(DataRowPostProcessor.java:126)
>> at
>> org.apache.cayenne.access.jdbc.DataRowPostProcessor.createPostProcessor(DataRowPostProcessor.java:113)
>> at
>> org.apache.cayenne.access.jdbc.SelectAction.performAction(SelectAction.java:84)
>> at
>> org.apache.cayenne.access.DataNodeQueryAction.runQuery(DataNodeQueryAction.java:59)
>> at org.apache.cayenne.access.DataNode.performQueries(DataNode.java:273)
>> ... 13 more
>>
>> What am I doing wrong?
>>
>> tx
>>
>> Hans
>>
>> On 9/7/10 4:23 PM, Hans Pikkemaat wrote:
>>> Indeed very strange.
>>>
>>> I'm trying to reproduce now using a simple table structure but here
>>> it works fine.
>>>
>>> If I find something I'll let you know.
>>>
>>> Hans
>
>
