I forgot to mention that you may have a look on irc://irc.codehaus.org/castor . Werner and myself are frequently online and try to answer your questions if our work allows us to spend time on castor.
Ralf Shiva P. Kodityala schrieb: > Thank you, Ralf. I am going through those classes. There are number of Test* > classes > > Could you pls let me know which classes/mapping.xml/database.xml to follow. > Any readme files that would be helpful? > > Thanks > Shiva > > > > -----Original Message----- > From: Ralf Joachim [mailto:[EMAIL PROTECTED] > Sent: Friday, December 09, 2005 10:00 AM > To: [email protected] > Subject: Re: [castor-user] Query Performance > > > Hi Shiva, > > I suggest you to have a look at our performance test framework (PTF) > under src/tests/ptf/jdo. PTF demonstrats different access situations and > loading strategies on a tree of objects with 1:n relations. Especially > you may want to look for the strategy I call OID loading as this can > improve your load performance by a factor of 10 depending on your object > hierarchy. > > Having said that PTF is only included in the source distribution of > castor and is configured to run against a mysql database. The result of > some runs of PTF on a 2GHz PC with different refactorings are also > included. For the latest results have a look at: > src/tests/ptf/jdo/rel1toN/results-tx-poly.txt. > > Regards > Ralf > Castor JDO, committer > > Shiva P. Kodityala schrieb: > >>Yes, I read that. >> >>I have little complex mapping: >> >>TableAClass has some fields and array of TableBClass objects; TableBClass has >>some fields and array of TableCClass objects. >> >>Trying to query TableAClass objects (Indirectly getting TableBClass and >>TableCClass objects underneath). >> >>I don't know whether I am doing lazy loading or something. How do I set it? >> >>Thanks >> >> >> >> >> >> >>-----Original Message----- >>From: Werner Guttmann [mailto:[EMAIL PROTECTED] >>Sent: Friday, December 09, 2005 8:51 AM >>To: [email protected] >>Subject: RE: [castor-user] Query Performance >> >> >>In general, can I assume that you have read >> >>http://castor.codehaus.org/jdo-best-practice.html >> >>In particular, what kind of relationships to you use ? Are you using >>lazy loading ? Etc. >> >>Werner >> >> >> >>wg> -----Original Message----- >>wg> From: Shiva P. Kodityala [mailto:[EMAIL PROTECTED] >>wg> Sent: Friday, December 09, 2005 5:39 PM >>wg> To: [email protected] >>wg> Subject: [castor-user] Query Performance >>wg> >>wg> >>wg> A query results in tens of thousands of rows. How should I >>wg> improve the performance? Making use of constant >>wg> Database.ReadOnly; Using castor release 0.9.9. Is there >>wg> any way to fetch results in bulk instead of one row by another? >>wg> >>wg> Thanks >>wg> >>wg> ------------------------------------------------- >>wg> If you wish to unsubscribe from this list, please send an >>wg> empty message to the following address: >>wg> >>wg> [EMAIL PROTECTED] >>wg> ------------------------------------------------- >>wg> >>wg> >> >>------------------------------------------------- >>If you wish to unsubscribe from this list, please >>send an empty message to the following address: >> >>[EMAIL PROTECTED] >>------------------------------------------------- >> >> >>------------------------------------------------- >>If you wish to unsubscribe from this list, please >>send an empty message to the following address: >> >>[EMAIL PROTECTED] >>------------------------------------------------- > > -- Syscon Ingenieurbüro für Meß- und Datentechnik GmbH Ralf Joachim Raiffeisenstraße 11 D-72127 Kusterdingen Germany Tel. +49 7071 3690 52 Mobil: +49 173 9630135 Fax +49 7071 3690 98 Email: [EMAIL PROTECTED] Web: www.syscon-world.de ------------------------------------------------- If you wish to unsubscribe from this list, please send an empty message to the following address: [EMAIL PROTECTED] -------------------------------------------------
