Looks like a bug. In any event probably worth investigating.

Andrus


On Oct 4, 2007, at 7:06 PM, Michael Gentry wrote:

I have a nested DataContext:

DataContext childContext = parentContext.createChildDataContext();

I have a Master and 3 Details (1-to-many) in the parent DC (in a
committed state), and pull the Master into the nested DC using
localObject().  If I then do the following:

Master childMaster = (Master)
childContext.localObject(parentMaster.getObjectId(), null);

Detail d = (Detail) childContext.newObject(Detail.class);
d.setXXXXXXXX(...); // do sets
childMaster.addToDetails(d);

childContext.commitChangesToParent();

childContext.deleteObject(d);
childMaster.removeFromDetails(d);
childContext.commitChangesToParent();

I get an exception on the last commitChangesToParent():

Exception in thread "main" org.apache.cayenne.CayenneRuntimeException:
[v.3.0M1 Jul 16 2007 22:25:33] Can't build a query for temporary id:
<ObjectId:Detail, TEMP:000004B078EB2838>

Is this to be expected?  If I change commitChangesToParent() to
commitChanges() it works ...

Thanks,

/dev/mrg


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