Help coderanch get a
new server
by contributing to the fundraiser
  • 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 Pie Elite all forums
this forum made possible by our volunteer staff, including ...
Marshals:
  • Campbell Ritchie
  • Jeanne Boyarsky
  • Ron McLeod
  • Paul Clapham
  • Liutauras Vilda
Sheriffs:
  • paul wheaton
  • Rob Spoor
  • Devaka Cooray
Saloon Keepers:
  • Stephan van Hulst
  • Tim Holloway
  • Carey Brown
  • Frits Walraven
  • Tim Moores
Bartenders:
  • Mikalai Zaikin

Transaction scope

 
Ranch Hand
Posts: 112
  • Mark post as helpful
  • send pies
    Number of slices to send:
    Optional 'thank-you' note:
  • Quote
  • Report post to moderator
How do you design a consumer which calls 2 web services from different sources and then combine results from them to give a final result.
The question is that the consumer is responsible for transaction scope. So if one of the service call fails then the other service call should be reverted.
Any help will be appreciated
 
Ranch Hand
Posts: 491
5
  • Mark post as helpful
  • send pies
    Number of slices to send:
    Optional 'thank-you' note:
  • Quote
  • Report post to moderator
1. When I read this question, I told my self it's time to read those WS-* Even if I read it, I did not really understand them.
2. I guess the what would be involved for the sake of theory.

Distributed transactions with WS-AtomicTransaction and JTA
https://www.ibm.com/developerworks/webservices/library/ws-transjta/

 
Ranch Hand
Posts: 2198
1
  • Mark post as helpful
  • send pies
    Number of slices to send:
    Optional 'thank-you' note:
  • Quote
  • Report post to moderator
Hi!
The pattern is called compensating transaction, I believe.
Briefly, it means that if service A makes some operation B available, then it should also make an operation C available that is able to revert the effect of invoking operation B.
This way, a client of service A can call operation B and, if things fail when invoking some other operation on the same or another service, operation C to restore the state in service A as it was before the operation B was called.
Best wishes!
 
Could you hold this kitten for a sec? I need to adjust this tiny ad:
We need your help - Coderanch server fundraiser
https://coderanch.com/t/782867/Coderanch-server-fundraiser
reply
    Bookmark Topic Watch Topic
  • New Topic