Keep in mind that fetch groups don't actually work the way you think they do. You don't get any efficiency from excluding basic properties from fetching because Appengine always fetches the full content of every entity.
Relationship fetch groups, on the other hand, probably work closer to the way you would expect. Jeff On Thu, Jan 28, 2010 at 12:44 AM, datanucleus <andy_jeffer...@yahoo.com> wrote: >> if google app engine has implemented fetch groups as defined in JSR-000243 >> Java Data Objects >> 2.2 Maintenance Release 2 ? > > GAE/J uses DataNucleus for the core persistence layer (and GAE/J > providing the layer communicating with the datastore), and DataNucleus > is the "reference implementation" for JDO 2.0, 2.1, 2.2, 2.3, so yes > has implemented that functionality, as per > http://www.datanucleus.org/products/accessplatform_2_0/jdo/fetchgroup.html > > -- > 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 google-appengine-j...@googlegroups.com. > To unsubscribe from this group, send email to > google-appengine-java+unsubscr...@googlegroups.com. > 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 google-appengine-j...@googlegroups.com. To unsubscribe from this group, send email to google-appengine-java+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-appengine-java?hl=en.
