Your understanding of that other message is correct.
As the JDORI plugin mechanism does not provide any abstraction of performing selections.
This is a deficit of SUN's JDORI and not of OJB!
The bad news is that there is no way to get around this problem.
SO all you can do for the moment is to wait for our own full JDO implementation that will not have such limitations.
cheers, thomas
Bastian Breithaupt wrote:
Hello!
I have a table with some 6000 rows and I have to make a query to select some 20 rows. I have read this thread: http://www.mail-archive.com/[EMAIL PROTECTED]/msg00626.html from the ojb-user list, which says, that first all rows of a tabel are read into memory (in my understanding...)
In fact, my query takes quite a while to be finished (3-5 secs); this is my code:
manager = factory.getPersistenceManager(); manager.currentTransaction().begin(); Extent extent = manager.getExtent( Class.forName( myClass ) , true); query = manager.newQuery( extent , filter ); result = (Collection)query.execute(); manager.currentTransaction().commit();
Any hints on how to build a fatser query with ojb and jdo?
Thanks a lot for your help
Bastian ______________________________________________________________________________ Erdbeben im Iran: Zehntausende Kinder brauchen Hilfe. UNICEF hilft den Kindern - helfen Sie mit! https://www.unicef.de/spe/spe_03.php
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