Win a copy of The Little Book of Impediments (e-book only) this week in the Agile and Other Processes forum!
  • Post Reply
  • Bookmark Topic Watch Topic
  • New Topic

Business Delegate in business tiers

 
Shogo Ito
Greenhorn
Posts: 25
  • Mark post as helpful
  • send pies
  • Quote
  • Report post to moderator
I understand Business Delegate (BD) is for presentation-tier to hide the detail of accessing business logic. Can this be applied inter-EJBs? An EJB uses BD to hide an access detail to another EJB. Or is there any specific pattern for this?

Thanks!
 
Ramon Gill
Ranch Hand
Posts: 344
  • Mark post as helpful
  • send pies
  • Quote
  • Report post to moderator
Shogo,
A Business Delegate can use a Service Locator(also a singleton) to look up access to session beans. A Business Delegate maps to a Session Facade (session bean).

Ray
SCJP, SCWCD, SCBCD, SCEA (part 1), IBM-484, IBM-486
 
With a little knowledge, a cast iron skillet is non-stick and lasts a lifetime.
  • Post Reply
  • Bookmark Topic Watch Topic
  • New Topic