Solved

Abstract Factory pattern -practical use

Posted on 2006-11-19
9
663 Views
Last Modified: 2006-11-22
Dear experts

Can some one explain a practical scenario where Abstract factory could be used. (other than DAO). if any one has implimented abstract factory in their current project, i would grealty appreciate if they could share their experience.

thanks
J
0
Comment
Question by:jaggernat
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
  • 3
  • 3
  • 3
9 Comments
 
LVL 10

Expert Comment

by:mbvvsatish
ID: 17977309
i havent used it in my projects till now.
but here is a real world example
http://www.design-nation.net/en/archives/000411.php
0
 
LVL 10

Accepted Solution

by:
mbvvsatish earned 250 total points
ID: 17977347
0
 
LVL 8

Expert Comment

by:reach2piyush
ID: 17977919
A classic scenario is from Swing for setting the Look & feel for various elements like Buttons / Text Boxes / Frames etc.

Consider setting the look and feel as an factory class based on a selection criteria for Motif / Windows, etc.
to create different factory classes for Button.

Button has a factory class to create different type of buttons
0
Independent Software Vendors: We Want Your Opinion

We value your feedback.

Take our survey and automatically be enter to win anyone of the following:
Yeti Cooler, Amazon eGift Card, and Movie eGift Card!

 
LVL 10

Author Comment

by:jaggernat
ID: 17980708
thanks

this is my j2ee project flow.

jsp --> business delegate (use singleton) --> service locator -->ejb --> DAO --> ibatis --> db2.

where do you guys think i can make use of abstract factory patern? any ideas/inputs appreciated

thanks
0
 
LVL 8

Assisted Solution

by:reach2piyush
reach2piyush earned 250 total points
ID: 17984436
abstract factory is ana creational pattern, most of the times it can be used along with your domain model objects

Consider a banking domain model, You may have Individual / Corporate / Joint Accounts
& then all these types can be further classified as Savings Account / Current Account / Credit Account, etc.

In case you decide to model these as classes rather than attributes, then you can use Abstract Factory to create an instance of IndividualSavingsAccount & so on..
An AccountFactory will give you IndividualFactory / CorporateFactory ...
IndividualFactory will give you  IndividualSavingsAccount...
0
 
LVL 10

Author Comment

by:jaggernat
ID: 17989053
ok thanks

does EjbHome fall under Abstract Factory? I think it falls under Factory method pattern right?

J
0
 
LVL 8

Expert Comment

by:reach2piyush
ID: 17992328
yup.. i also have the same idea.
EJbHome exhibits Factory pattern rather than Abstract Factory for creating EBJ Remote objects
0
 
LVL 10

Expert Comment

by:mbvvsatish
ID: 17993457
yeah thats correct.
0
 
LVL 10

Author Comment

by:jaggernat
ID: 18000727
thanks
0

Featured Post

Secure Your Active Directory - April 20, 2017

Active Directory plays a critical role in your company’s IT infrastructure and keeping it secure in today’s hacker-infested world is a must.
Microsoft published 300+ pages of guidance, but who has the time, money, and resources to implement? Register now to find an easier way.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Suggested Solutions

Introduction Java can be integrated with native programs using an interface called JNI(Java Native Interface). Native programs are programs which can directly run on the processor. JNI is simply a naming and calling convention so that the JVM (Java…
Introduction This article is the second of three articles that explain why and how the Experts Exchange QA Team does test automation for our web site. This article covers the basic installation and configuration of the test automation tools used by…
Viewers learn about the third conditional statement “else if” and use it in an example program. Then additional information about conditional statements is provided, covering the topic thoroughly. Viewers learn about the third conditional statement …
Viewers learn about the scanner class in this video and are introduced to receiving user input for their programs. Additionally, objects, conditional statements, and loops are used to help reinforce the concepts. Introduce Scanner class: Importing…

756 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question