Pass "this" reference within SessionBean to other classes

Question

Can "this" reference for a SessionBean be passed to other helper classes?
For example,
public class MySb implements SessionBean {
MyClass a = new MyClass();
public void myBusinessMethod() {
a.methodA(this);
It looks strange that MyClass.methodA is expecting a SessionBean as opposed to a EJBObject interface as parameter. I also thought about passing the SessionContext object. Can someone tell me the pros and cons?
Thank you.

Answer 1

Thanks for the reply.
There are disadvantages using the EJBObject directly. However, since the call always comes from the EJBObject instance and the helpers simply call its methods within the same method call. For performance reason, will it hurt to do that? i.e.
public class MyStatefulSessionBean ... {
public void methodA() {
helperA.methodA(this, parms);
void changeState(StateHelper helper){this.helper=helper;}
class helperA {
methodA(EJBObject obj, parms){
obj.changeState(new HelperB);
My other alternative is to pass the SessionContext to the helpers and helpers can call its getObject() to retrieve the remote interface. Then performance suffers and unwanted private method (changeState) has to be exposed to the public interface.