Hi Jakob, Gerhard
In ReferencePrefetcher#associateBatched:
...
while (iter.hasNext())
{
owner = iter.next();
fkValues = ord.getForeignKeyValues(owner,cld);
id = new Identity(null, topLevelClass, fkValues);
relatedObject = pb.getObjectByIdentity(id);
field.set(owner, relatedObject);
}
...
Should this also be ensuring a non null foreign key value?
Carl.
-----Original Message-----
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]
Sent: Wednesday, October 15, 2003 3:59 PM
To: OJB Users List
Subject: Re: Antwort: RE: How to map optional 1:1 relationship
Hi Jakob,
I just checked and you are right.
Nevertheless I find a lot of statements like SELECT ... FROM ... WHERE
id='' in my P6Spy logs, where id is a not nullable primary key. I was
assuming these were generated from resolving references with FK=null, but
it turns out this is wrong. Looks like I'll have to do a little more
research to find the reason for these selects...
Regards,
Gerhard
Jakob Braeuchi <[EMAIL PROTECTED]>
15.10.2003 16:10
Bitte antworten an "OJB Users List"
An: OJB Users List <[EMAIL PROTECTED]>
Kopie:
Thema: Re: Antwort: RE: How to map optional 1:1 relationship
hi gerhard,
imo this is already implemented. see
PersistenceBrokerImpl#getReferencedObject:
...
// BRJ: check if we have non null pk values
// TBD we should also check primitives
// to avoid creation of unmaterializable proxies
for (int i = 0; i < pkVals.length; i++)
{
if (pkVals[i] != null)
{
allPkNull = false;
break;
}
}
// BRJ: if all pk values are null there's no referenced object
if (allPkNull)
{
return null;
}
...
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