Hi Marcin,
I just tried to reproduce it with the code from HEAD, and it seems to
work
(CayenneContextClientChannelEventsTst.testSyncManyToManyRelationship1).
Don't know if you have an opportunity to upgrade from 3.0-PROTO to
HEAD (this will require package changes to Apache, and also using the
new Modeler from HEAD). If not, please either submit your test case
via Jira or send it to me directly. Let's take a look.
Andrus
On Aug 6, 2006, at 3:35 AM, Marcin Skladaniec wrote:
Hi everyone !
I have a problem with some counts in flattened many to many
relationships. (remote persistence, v.3.0-PROTO July 5 2006)
Generally the problem is when object exist in two contexts and the
many to many relationship is modified.
To reproduce this :
CayenneContext context = new CayenneContext(channel, true, true);
CLocation location = (CLocation) context.newObject
(CLocation.class);
CSpiece spiece = (CSpiece) context.newObject(CSpiece.class);
context.commitChanges();
logger.warn("location has spieces : "+location.getSpieces
().size()); //prints 0 as supposed.
CayenneContext context2 = new CayenneContext(channel, true,
true);
CLocation loc = (CLocation)context2.localObject
(location.getObjectId(), null);
CSpiece sp = (CSpiece)context2.localObject(spiece.getObjectId(),
null);
loc.addToSpieces(sp);
context2.commitChanges();
logger.warn("loc has spieces : "+loc.getSpieces().size
()); // prints 1 as expected
logger.warn("location has spieces : "+location.getSpieces
().size());// prints 2, and here lies the problem.
printing all spieces for location gives two results :
1 - <[EMAIL PROTECTED],
id=<ObjectId:Spieceid=280>, state=committed,
[EMAIL PROTECTED]>
2 - <[EMAIL PROTECTED],
id=<ObjectId:Spieceid=280>, state=committed,
[EMAIL PROTECTED]>
Of course in context this object exists only once.
If new context is spawned everything works fine, but I cant use new
context in this case.
There is no problem as well when removing from relationship.
Is it a bug, or I'm doing something wrong here ?
Marcin
PS I have a small standalone project which reproduces this problem,
if it would be needed please e-mail me.
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ish
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