Confirmation Required for session bean(Q-SCBCD Exam Kit)Manning Pub

[Awishek sinha]

1. Which of the following methods can be called from the code of a stateless session
bean�s client?
a. ejbCreate()
b. remove()
c. create()
d. ejbRemove()
e. createDiscount()
Answer: B, C

I believe the answer should be b,c,e
as it has been asked about the valid methods from session bean client (can be called using reference of Home & Component interface) so createDiscount can be a business method that can be declared in component interface & its implementation can be in bean class as the spec says
The name of business method in bean class should not begin with ejb(can begin with create)
Let me know your opinion?

[Sanjeev BhimaRao]

To me the question sounds like, which method can be called from the client of a stateless session bean. Stateless session bean creates cannot have any other name apart from create. Hence, B and C are the right answers.

[Awishek sinha]

But Can't we have a business method named createDiscount in session bean class as ejb spec can allow me have this named method.(specs says we cannot have business method starting with name ejb..)

[Amol Nayak]

The question looks like which methods on a Home interface of Stateless session bean.

According to the spec (section 7.11.6) only one create is allowed in
the home of Stateless session bean.

Spec says:
The following are the requirements for the session bean�s remote home interface:
� The interface must extend the javax.ejb.EJBHome interface.
� The methods defined in this interface must follow the rules for RMI/IIOP. This means that their
argument and return values must be of valid types for RMI/IIOP, and that their throws
clauses must include the java.rmi.RemoteException.
� The remote home interface is allowed to have superinterfaces. Use of interface inheritance is
subject to the RMI/IIOP rules for the definition of remote interfaces.
� A session bean�s remote home interface must define one or more create<METHOD> methods.
[B]A stateless session bean must define exactly one create method with no arguments.[/B]
� Each create method must be named create<METHOD>, and it must match one of the
ejbCreate<METHOD> methods defined in the session bean class. The matching ejbCreate<
METHOD> method must have the same number and types of arguments. (Note that the
return type is different.) The methods for a stateless session bean must be named �create�
and �ejbCreate�.
� The return type for a create<METHOD> method must be the session bean�s remote interface
type.
� All the exceptions defined in the throws clause of an ejbCreate<METHOD> method of the
session bean class must be defined in the throws clause of the matching create<METHOD>
method of the remote home interface.
� The throws clause must include javax.ejb.CreateException.

So last one is not a correct answer. Hope that clears your doubt.

[Awishek sinha]

I too agree if it's using HomeInterface we can call only create() & remove() but question does not say home
Which of the following methods can be called from the code of a stateless session
bean�s client?(not specified only home interface)
Let me know if i comrehend the question wrong

[Amol Nayak]

In that case the question is not framed properly, From the methods given it looks like it should be Home interface.
The real exam would not have question where language is not clear.