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Hello,
We've got a system that needs to update thousands (possibly hundreds
of thousands) of Objects.
After reading OJB FAQ I thought that
PersistenceBroker.getIteratorByQuery(query) would be the best solution
in this case. Query runs fine and returns RsIterator. However the
problems start when I try to iterate and process few thousands of
records eventually I get OutOfMemoryError (out of java heap). I did
profiling and found that QueryReferenceBroker object holds a big
ArrayList called prefetchingListeners that grows rapidly while
iterating. I think that's because OJB keeps all objects to commit when
PersistenceBroker is closed.
What I do is I call the following statement after each iteration:
((PersistenceBrokerInternal)
pb).getReferenceBroker().removePrefetchingListeners();
That helped but that's obviously not the best way of doing it and I
don't know how thread-safe it is.
Is there any more appropriate way of doing that?
Thank you,
Vasily
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