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Internet Computing: Assignments & Quiz for Weeks 12-14, Pace Univ., Fall 2006 - Prof. Lixi, Assignments of Computer Science

Pace UniversityComputer Science
Prof. Lixin Tao

The tasks for weeks 12-14 of the cs644/it632/cs397k: internet computing with distributed components course at pace university, fall 2006. Students are required to read chapters from the textbook and j2ee tutorial, complete an assignment, explore design patterns, take an online quiz, and participate in discussion board forums. The assignment involves writing a stateful session bean, and the quiz covers ejbs.

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CRN:71995/72666/73088 Pace University Fall, 2006
CS644/IT632/CS397K: Internet Computing with Distributed
Components
The due day for all the tasks specified here is December 10, 2006.
Tasks to be completed in Weeks 12 through 14 (11/20 – 12/10):
1. Read Chapter 9 of the textbook. Try out all projects covered in your reading.
2. Read Chapter 1 of J2EE Tutorial.
3. Assignment 4: Write a stateful session bean that takes one word at a time and
appends it to the previous words received to make a sentence. Return the entire
sentence each time a word is added (textbook exercise 2 on page 342). Due date is
December 10.
4. Explore and study with Google search the concepts of the following design
patterns: Observation Pattern, Proxy Patter, MVC pattern, Delegation Pattern (a
good starting point is
http://en.wikipedia.org/wiki/Category:Software_design_patterns).
5. From 9AM of December 8 to 10PM of December 10, take the 30-minute online
Quiz 3 at Course Documents. There will be four multiple-choice questions on
EJBs.
6. In course Discussion Board forum Week12-14, reply to each of the following
questions:
a. Why EJB-based application servers could deliver better performance for
enterprise hosted applications?
b. Are Web services going to replace EJB technology?

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CRN:71995/72666/73088 Pace University Fall, 2006

CS644/IT632/CS397K: Internet Computing with Distributed

Components

The due day for all the tasks specified here is December 10, 2006.

Tasks to be completed in Weeks 12 through 14 (11/20 – 12/10):

  1. Read Chapter 9 of the textbook. Try out all projects covered in your reading.
  2. Read Chapter 1 of J2EE Tutorial.
  3. Assignment 4 : Write a stateful session bean that takes one word at a time and appends it to the previous words received to make a sentence. Return the entire sentence each time a word is added (textbook exercise 2 on page 342). Due date is December 10.
  4. Explore and study with Google search the concepts of the following design patterns: Observation Pattern, Proxy Patter, MVC pattern, Delegation Pattern (a good starting point is http://en.wikipedia.org/wiki/Category:Software_design_patterns).
  5. From 9AM of December 8 to 10PM of December 10, take the 30-minute online Quiz 3 at Course Documents. There will be four multiple-choice questions on EJBs.
  6. In course Discussion Board forum Week12-14 , reply to each of the following questions: a. Why EJB-based application servers could deliver better performance for enterprise hosted applications? b. Are Web services going to replace EJB technology?