Hi, It is indeed to do with caching. Let us have a one-to-many relation : A has many Bs. We modify A (but leave it's related B's alone), and A remains in the cache. We then create a B, and associate it with A (e.g. b.setA(A) ) - but we *don't* add it to A's collection of B's. If we then retrieve A from the Cache as a result of another query. If refresh = false, then the collection of B's will *not* contain our new B. If refresh = true, the the collecton will contain the new B - in other words the collection is refreshed when the object is retrieved from the cache.
The use of CollectionProxies prevents the actual materialization of all object in colleciton until needed i.e. the full query is not actually executed until the contents of the collection is accessed. Cheers, Charles. > -----Original Message----- > From: Andy Czerwonka [mailto:[EMAIL PROTECTED] > Sent: 22 October 2003 23:53 > To: OJB Users List > Subject: refresh=true OR refresh=false > > > In looking at the documentation, there isn't really anything > descriptive > regarding this attribute on collections/references. I'd like > to turn it > off, but I'm afraid. Should I be? Can someone help me > understand this > a little better so that I know what's going on? Is this a > cache thing? > > -andy > > > --------------------------------------------------------------------- > To unsubscribe, e-mail: [EMAIL PROTECTED] > For additional commands, e-mail: [EMAIL PROTECTED] > > This email and any attachments are strictly confidential and are intended solely for the addressee. If you are not the intended recipient you must not disclose, forward, copy or take any action in reliance on this message or its attachments. If you have received this email in error please notify the sender as soon as possible and delete it from your computer systems. Any views or opinions presented are solely those of the author and do not necessarily reflect those of HPD Software Limited or its affiliates. At present the integrity of email across the internet cannot be guaranteed and messages sent via this medium are potentially at risk. All liability is excluded to the extent permitted by law for any claims arising as a re- sult of the use of this medium to transmit information by or to HPD Software Limited or its affiliates. --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
