Gordon,
Is there a way to check which exactly PK causes this error?
Can it be that there is another FileCategory instance that
is the problem?
thanks,
-marina
Gordon Yorke wrote:
> Nothing jumps out as an issue, if you are not on the latest version of TopLink Essentials I would recommend updating your TopLink Essentials jar and if the problem persists file a glassfish issue with testcase.
> --Gordon
>
> -----Original Message-----
> From: Ellen Kraffmiller [mailto:ekraffmiller_at_hmdc.harvard.edu]
> Sent: Thursday, September 28, 2006 11:24 AM
> To: persistence_at_glassfish.dev.java.net
> Subject: Re: Trting to add new child entity; getting
> OptimisticLockException
>
>
> The version is being left as null - we are never setting it.
> Thanks,
> Ellen
>
> Gordon Yorke wrote:
>
>
>>Hello Ellen,
>> In the constrctor of FileCategory is version being initialized to new Long(X) or being left as null?
>>--Gordon
>>
>>-----Original Message-----
>>From: Ellen Kraffmiller [mailto:ekraffmiller_at_hmdc.harvard.edu]
>>Sent: Thursday, September 28, 2006 10:27 AM
>>To: persistence_at_glassfish.dev.java.net
>>Subject: Re: Trting to add new child entity; getting
>>OptimisticLockException
>>
>>
>>Hi Gordon,
>>I am working with Gustavo on this problem so I thought I'd answer your
>>questions. The version field is defined as:
>>
>> @Version
>> private Long version;
>>(with normal getters and setters)
>>
>>We are using SostgreSQL, and the database column is version, int8.
>>
>>Thanks,
>>Ellen
>>
>>Gordon Yorke wrote:
>>
>>
>>
>>
>>>Hello Gustavo,
>>> What is the version field in FileCategory being initialized to? What type is the version field?
>>>--Gordon
>>>
>>>-----Original Message-----
>>>From: gdurand_at_hmdc.harvard.edu [mailto:gdurand_at_hmdc.harvard.edu]
>>>Sent: Wednesday, September 27, 2006 5:57 PM
>>>To: persistence_at_glassfish.dev.java.net
>>>Subject: Trting to add new child entity; getting OptimisticLockException
>>>
>>>
>>>Hi,
>>>
>>>I'm am trying a very simple example and am getting a problem
>>>(I am using glassfish v2 milestone 1):
>>>
>>>Our DB has a Study entity which has a one to many relationship
>>>with a FileCategory entity.
>>>
>>>When I try to add a FileCategory to an existing study:
>>>
>>> Collection categories = study.getFileCategories();
>>>
>>> FileCategory c = new FileCategory();
>>> c.setName( "test" );
>>>
>>>
>>> c.setStudy(study);
>>> categories.add(c);
>>>
>>> em.merge(study);
>>>
>>>I am getting:
>>>
>>>Exception Details:
>>>oracle.toplink.essentials.exceptions.OptimisticLockException
>>> Exception Description: The object
>>>[edu.harvard.hmdc.vdcnet.study.FileCategory_at_1f1c748] cannot be merged
>>>because it has changed or been deleted since it was last read.
>>>{3}Class> edu.harvard.hmdc.vdcnet.study.FileCategory
>>>
>>>
>>>
>>>Any ideas why this is happening, since the FileCategory doesn't exist
>>>in the first place? (I have seen an example in the O'Reilly book that
>>>pretty much does just this)?
>>>
>>>Thanks,
>>>Gustavo
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>
>>
>>