Using warp-persist @Transactional

This is not directly related to wicket but I guess that many might be using warp-persist in their project.

I am using @Transactional annotation to mark my methods in the service layer. Everything was working as expected until … until I did something like this:

public class UserService {
  public User createNewUser (String name) {
    ...
    createNewUser(name, defaultPermission);
    ...
  }

  @Transactional
  private User createNewUser (String name, Permission permission) {
    ...
  }
}

The surprise here is that in this case the transaction will never be created! The @Transactional works only on non private methods since private methods can not be intercepted for transaction wrapping.

This is well documented here. A classic case of RTFM