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Web Service Objective Clarification

J J Wright
Ranch Hand

Joined: Jul 02, 2008
Posts: 254
Business tier objective 4.3 is as follows:

"Explain how Java EE supports the deployment of server-side components implemented as web services and the advantages and disadvantages of adopting such an approach."

Seeing as this is a business tier objective I�m assuming they�re talking about the JAX-RPC and JAX-WS stateless session bean programming models. But when they talk about advantages and disadvantages there has to be a comparison involved somewhere.

How are other people interpreting this? Is it meant be a comparison of the advantages/disadvantages of the servlet/stateless session bean programming models?

Any thoughts would be welcome.

Kind regards,


Sandeep Krish
Ranch Hand

Joined: Jan 02, 2007
Posts: 59
Considering Deployment = Usage, You can use SSB and POJOs to create Web services. None of the design patterns I came across have used Servlet as a WS end point (Please let me know if you have come across any such case) JAX-RPC and JAX-WS are the technologies used to by the app server internally so this question is about SSB and POJO from my point of view.
[ October 23, 2008: Message edited by: Sandeep Krish ]
Ranganathan Kaliyur Mannar

Joined: Oct 16, 2003
Posts: 1101

Based on Whizlabs mock exams, the questions seem to be about @WebService and @WebMethod annotations.


J J Wright
Ranch Hand

Joined: Jul 02, 2008
Posts: 254
This is true. I've been looking at the ePractice questions from Sun for this objective; they also center on JAX-WS specification in one way or another.
Lann Lu
Ranch Hand

Joined: May 31, 2008
Posts: 45
One possible comparison I think would be
Contract Last approach vs. Contract First approach.

Look at Spring Web Services.

I agree. Here's the link:
subject: Web Service Objective Clarification
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