title: hibernate: create Entity(with annotations) in runtime
body: <p>Is it possible to create hibernate Entity class(with annotations) during runtime? It should be related with the table that is also added in runtime. It is important that the Entity should be visible by the Hibernate.
  Is it possible in general, could you please give me any advices on the problem? 
  I understand, that reflection is the keyword, but looking for some more words.
  Regards.</p>