• Post Reply Bookmark Topic Watch Topic
  • New Topic
programming forums Java Mobile Certification Databases Caching Books Engineering Micro Controllers OS Languages Paradigms IDEs Build Tools Frameworks Application Servers Open Source This Site Careers Other all forums
this forum made possible by our volunteer staff, including ...
  • Campbell Ritchie
  • Tim Cooke
  • Paul Clapham
  • Devaka Cooray
  • Bear Bibeault
  • Junilu Lacar
  • Knute Snortum
  • Liutauras Vilda
Saloon Keepers:
  • Ron McLeod
  • Stephan van Hulst
  • Tim Moores
  • Tim Holloway
  • Piet Souris
  • salvin francis
  • Carey Brown
  • Frits Walraven

Client callback or polling should be done in processing layer or interaction layer or both layers?

Ranch Hand
Posts: 1869
  • Mark post as helpful
  • send pies
  • Quote
  • Report post to moderator
In Ivan's notes, p.403, session title "Design an asynchronous document style web service", there is a flow chart diagram showing that the processing layer delegates the interaction layer, which determines if a client call back or polling is necessary. So, from this diagram, the interaction layer does the client callback or polling.

But on p.404, Ivan's notes says "Another way of showing the same thing...." (a sequential diagram), the diagram shows that the client polls response from the interaction layer. Or, the processing layer callback the client.

So, which diagram should I follow?
    Bookmark Topic Watch Topic
  • New Topic