sorry it was a useless post....instead of using a JSF managed bean I can simply use an Entity bean and I have the mapping built-in with Seam.
The purpose of Seam is to have a unified component model. Therefore you can declare a Seam java bean component to act as your
JSFbean and seamlessly (appropriate wording :-)) inject that bean into an EJB using @In annotation.
I suggest you read Seam documentation and experiment with the examples before posting questions on this forum.