[appengine-java] Re: Query a collection of entities with their IDs

Hi Marton. Yes, this performs a batch get which retrieves all entities in parallel, which should be much more efficient than fetching sequentially with getObjectById. - Jason 2009/9/21 Marton Papp mapr...@gmail.com Hi Max, I am surprised that this actually works. :) I could not find the

[appengine-java] Re: Query a collection of entities with their IDs

Max, thanks, this works pretty well for me :-) On Sep 9, 3:14 am, Max Ross maxr+appeng...@google.com wrote: You can do the equivalent of a low level batch get with jdoql: Query q = pm.newQuery(select from + Flight.class.getName() + where id == :ids); @SuppressWarnings(unchecked)

[appengine-java] Re: Query a collection of entities with their IDs

Hi Max, I am surprised that this actually works. :) I could not find the documentation describing this feature. Do you know how is this implemented? Is it more efficient than just calling getObjectByIdentity N (=listOfKeys.size()) times? Thanks, Marton On Sep 8, 9:14 pm, Max Ross

[appengine-java] Re: Query a collection of entities with their IDs

http://groups.google.com/group/google-appengine-java/browse_thread/thread/e881ba0220ed8e9a/5a46b73f435f342a Please try not to double-post in the future. Thanks, - Jason 2009/9/6 Zhi Le Zou zouzh...@gmail.com Hi, I have a class Foo defined as below: public