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.
-------------------------->
ish
http://www.ish.com.au
Level 1, 30 Wilson Street Newtown 2042 Australia
phone +61 2 9550 5001 fax +61 2 9550 4001
