How EJB works?

Hi everyone,
Can anyone help me in understanding exact internal sequence when an Entity bean get called. What I think is -
1) We call create() or findByPK() method of Home interface (implemented by container) which returns RMI stub (remote reference) of Remote Interface (again implemented by contrainer).
2) This is required RMI stub which is always needed to call any RMI object (Entity Bean in our case).
3) We call methods of Entity bean using this RMI stub. ( where RMI skelton is again generated by container)
Is this correct? Is the remote reference is stub? How RMI being internally used by EJB?
Punit Pandey