As far as I can see from CVS, CollectionPrefetcher.buildPrefetchQuery(...) only
checks among 1:N references:
protected Query buildPrefetchQuery(Collection ids)
{
CollectionDescriptor cds = getCollectionDescriptor();
QueryByCriteria query = buildPrefetchQuery(ids,
cds.getForeignKeyFieldDescriptors(getItemClassDescriptor()));
...
where cds.getForeignKeyFieldDescriptors(getItemClassDescriptor()) will return empty
array because class CollectionDescriptor does
not override method getForeignKeyFieldDescriptors() implemented in base class
ObjectReferenceDescriptor (which only knows about
'decomposed' FKs).
All the Best,
Andy
----- Original Message -----
From: "Andy Malakov" <[EMAIL PROTECTED]>
To: "OJB Users List" <[EMAIL PROTECTED]>
Sent: Tuesday, December 02, 2003 12:06 PM
Subject: Query prefetching non-decomposed M:N relationships is unimplemented?
Hello All,
Can you please confirm that association prefetching mechanism in OJB queries currently
(CVS) does not support M:N associations?
Thank you,
Andy
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