It exists for Hibernate, and it was easy to write because of OO. If you disagree, prove me wrong. Otherwise concede the point.
By "easy to write", do you mean using the framework or making the framework?
You have the burden of showing something being "easy". Remember: "Equal, subjective, or unknown until proven otherwise". I can accept that my preferences may be purely a subjective mindfit. If you believe OO is some universal truth and/or a slum-dunk improvement, then it is your burden to show it.