I read a lot about the M$ sync framework for database synchronization. It seems all the magic is the change tracking feature provided by M$ SQL Server. IMO, Envers provide a detailed change tracking feature(It's called "Change Data Capture" in M$'s documentation). It should be possible to create a data sync framework based on Entity with the powerful Hibernate Envers.

I think someone may have the same idea and I google a lot for such a solution. However, I found nothing about it. Could anybody say something about this idea?