• 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

SpringMVC and Transactions

 
Ranch Hand
Posts: 44
  • Mark post as helpful
  • send pies
    Number of slices to send:
    Optional 'thank-you' note:
  • Quote
  • Report post to moderator
Hi

I am working on spring MVC application and i want to delete the record from DB. I am starting the transaction in referenceData() and closing in onSubmit() mehtods. Code is below, Please advice is that right way to define trnsaction boundries in Controller. Should we handle transactions in Controllers for MVC applications.

<blockquote>code:
<pre name="code" class="core"> protected Map referenceData(HttpServletRequest request) throws Exception {
// start a transaction
tx = (ResourceTransactionManager) ctx.getBean("transactionManager");
DefaultTransactionDefinition def = new DefaultTransactionDefinition();
TransactionStatus status = tx.getTransaction(def);
HashMap model = new HashMap();
List list = userServiceImpl.findAllUsers();
model.put("users", list);
return model;
}

/** returns ModelAndView(getSuccessView()) */
public ModelAndView onSubmit(HttpServletRequest request, HttpServletResponse response, Object command,
BindException errors) throws Exception {

UserImpl userImpl = (UserImpl) command;
userServiceImpl.removeUser(userImpl);
//Commit transaction
tx.commit(status);

return new ModelAndView(getSuccessView());
}
</pre>
</blockquote>
 
ranger
Posts: 17347
11
Mac IntelliJ IDE Spring
  • Mark post as helpful
  • send pies
    Number of slices to send:
    Optional 'thank-you' note:
  • Quote
  • Report post to moderator
Personally, and this is just my opinion. I thought declaring transactions at your service/use case level is the place to do it, and I personally would use @Transactional, but that is my preference. Rather than manually code transaction support, which couples it with that code. Which we want to avoid tight coupling, otherwise we wouldn't be using Spring.

If you don't like @Transactional, then what about declaring Transactions through Spring AOP. Then it is 100% decoupled from your code.

Mark
 
Don't get me started about those stupid light bulbs.
reply
    Bookmark Topic Watch Topic
  • New Topic