This week's book giveaway is in the OCPJP forum. We're giving away four copies of OCA/OCP Java SE 7 Programmer I & II Study Guide and have Kathy Sierra & Bert Bates on-line! See this thread for details.
An Enity Bean can call another entity bean. Usually the entity beans are called from the session beans where the business logic will be in session bean. When you call from client, it is preferred to call thru the session bean to many Entity beans which are local to the container so that the expensive cleint calls could eb reduced. Thanks Sri