Hey,
I have an issue while trying to update one object in a collection,
using JDO.
Here are the facts:
o i have a class (let's call it BigClass), that has an embedded
class(SmallClass) containing an ArrayList.
o I DONT use/need a transaction
o I query the database to get a List of BigClass items that should
be modified. I iterate through each of them and I...
o I remove an element from the list in the SmallClass embedded in
the current BigClass, the changes are not ALWAYS persisted
o if I print (log) the object after the change, it looks modified,
but if i check the DataViewer, the object was not updated
o i even tried using JDOHelper.makeDirty on the BigClass, with the
fieldName SmallClass, and it still doesn't work.
Some relevant code:
Query q =
pm.newQuery(BigClass.class,"id==:ids");
List<BigClass>
participatingUsers=(List<BigClass>)
q.execute(participantIDs);
//Update the participants
ListIterator<BigClass>
it=participatingUsers.listIterator();
BigClass participant;
boolean modified;
while(it.hasNext())
{
participant=it.next();
participant.list.remove(smth);
JDOHelper.makeDirty(participant,"collection");
}
....
modify other objects
....
pm.close()
Another thing is that some of the changes I make after this part are
persisted...
So, if you have any suggestions, shoot pls!
Cosmin
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