• Post Reply
  • Bookmark Topic Watch Topic
  • New Topic

Design Pattern Question

 
Wayne Hatayama
Greenhorn
Posts: 12
  • Mark post as helpful
  • send pies
  • Quote
  • Report post to moderator
While scanning the exam objects for 1.3 and 1.4, I notice that two patterns from 1.3 were dropped from 1.4 - value object and data access object. Are these pattern obsolete?

Wayne Hatayama
 
Kathy Sierra
Cowgirl and Author
Rancher
Posts: 1589
5
  • Mark post as helpful
  • send pies
  • Quote
  • Report post to moderator
Howdy -- we felt that DAO (Data Access Object) just wasn't specific to Servlets, so we dropped it from this exam. It''s definitely not obsolete!

But Value Object is now something that Sun calls the Transfer Object, so... it's still valid and still there, just using a different name

cheers,
Kathy

[edited by Kathy because I first called it "Data Transfer Object", not "Transfer Object". Data Transfer Object, Transfer Object, and Value Objects are all names for the same pattern... don't get me started ]
[ October 06, 2004: Message edited by: Kathy Sierra ]
 
  • Post Reply
  • Bookmark Topic Watch Topic
  • New Topic