gwt - Queries in Google App Engine using JDOQL -

I have problems in using object oriented databases instead of traditional relatives. I persistance for GDO as a holding platform And using Google App Engine How can I model my classes correctly to support relationships? I can create an insert query in SQL, but it is not supported on Google's Bigtable database. For example, is this approach right?

  Classroom Parents {@ Attentant (Mapped) = "Parents") List & lt; Child & gt; children; } Class child {@ Presant parent parent; }    What should be the JDOUL query to get all the child items of parents? I would be very grateful for some advice thank you   
 
  GAE support merge-join You can see Brett Slatkin's iOS 200 9 "Building Scalable, Complex App on the App Engine"  
   

 


  






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