Is it based on mongoDb java driver ?
Can I use it when the domain model is scala program in version 1.2.2RC1+ of play framework?
Please note that questions that may have been answered before may not be relevant to play framework version 1.2.2RC1+.
Morphia does run on top of/uses the mongodb java driver. All java ORM solutions do. I don't see why it would be a problem to run it in Scala. I have no experience with the "play framework".