Re: Inheritence delete exception

I checked that our repository_user file does not contain auto_XXX for an
reference-desc and collection-desc, are these mandatory and could be cause
of problems?

mananthakris wrote:
> 
> Hi, 
> 
> We are using same table for different subclasses using a varchar column
> and define  ojbConcreteClass  to find the actual class.
> 
> When we try to delete a object in a relationship , i see an error
> "unregistered object for delete:" . I saw a previous forum question,
> suggestion for the error and implemented writing locks for all objects in
> transaction, but we still have the error.
> 
> In our case we have an object AssessmentGroup and an object Question in
> 1:n relationship ( Question has different types of questions /subclasses
> in a same table differentiated with classidentity column of the table).
> 
> This error occurs when we delete a MultipleChoice sublclass of Question
> and remove its relationship with AssessmentGroup.
> 
> Detailed logs shows we are locking
> AssessmentGroup,MultipleChoice(subclass) before delete, 
> 
> but the exception shows even when we are writing
> db.deletePersistent(multiplechoiceobj) , it is trying to delete base class
> internally. Do you think this is expected behaviour? Are we supposed to
> lock base class inspite of knowing which exact class we are deleting?
> 
> The exception is
> 
> org.apache.ojb.odmg.Image$ImageException: Unexpected behaviour,
> unregistered object to delete:
> com.tk20.bo.evaluationinstrument.Question{100007f1388e5e10fe3fa0849-7ff1},
> main object is
> com.tk20.bo.template.AssessmentGroup{100007f1388e5e10fe3fa0849-7ff3},
> envelope object is
> org.apache.ojb.odmg.ObjectEnvelope@10a5314[Identity=com.tk20.bo.template.AssessmentGroup{100007f1388e5e10fe3fa0849-7ff3},ModificationState=org.apache.ojb.odmg.states.StateOldClean]
> 
> 
> We are using obj 1.0.4 odmg api with mysql db.Attached is the
> repository_user.xml
>  http://www.nabble.com/file/5190/repository_user.xml repository_user.xml 
> 

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