No, the mapper will go over everything. If the number of entities is small, you are better off placing an indexed property on ONLY these fields, then just iterating over them with a cursor and either a local client making multiple HTTP calls to your App Engine app or chained task queues.
-- Ikai Lan Developer Programs Engineer, Google App Engine Blogger: http://googleappengine.blogspot.com Reddit: http://www.reddit.com/r/appengine Twitter: http://twitter.com/app_engine On Sun, Nov 7, 2010 at 5:58 AM, aswath satrasala <[email protected] > wrote: > Hello, > I want to perform few aggregations on entities of a kind that are filtered > by the property. > The entities I want to perform the aggregation is small compared to the > complete entity set. > Is there any way to pass the filters to the mapper, so that only those > entities are retrieved and aggregation is performed > > *Regards > -Aswath > http://vs-accounting.appspot.com > Accounting for Indian markets.* > > -- > You received this message because you are subscribed to the Google Groups > "Google App Engine for Java" group. > To post to this group, send email to > [email protected]. > To unsubscribe from this group, send email to > [email protected]<google-appengine-java%[email protected]> > . > For more options, visit this group at > http://groups.google.com/group/google-appengine-java?hl=en. > -- You received this message because you are subscribed to the Google Groups "Google App Engine for Java" group. To post to this group, send email to [email protected]. To unsubscribe from this group, send email to [email protected]. For more options, visit this group at http://groups.google.com/group/google-appengine-java?hl=en.
