On Thursday 01 September 2005 19:26, Larry Meadors wrote: > iBATIS is 100% thread-safe. > > Larry > > > PS: can you point me to a good example of a Spring-based DAO > implementation?
Hm...IMHO one good example would be the JPetstore sample app that comes with the Spring distribution, for instance. Good in particular, as its not overly complex, plus you can compare it to the 'traditional' iBATIS JPetStore app. The architecture has slightly changed (the former 'service' functionality now rather completely wandered underneath 'domain.logic', in the Facade implementation, which is IMHO ok in this case, as it's mostly delegating everything anyway). This is one of the samples I profited the most from when evaluating Spring. Another good starting point would be Matt Raible's AppFuse, which is basically for Hibernate and a little bit more complex. Those two are kind of my 'reference samples' when it comes to Spring :-) Note that in both cases, the DAOs are very lean and don't contain any messy synchronization code. But IMHO the really cool thing about IoC (not to mention the AOP functionality) is that you finally can achieve really loose coupling throughout your entire app, and its simple. In fact, we could replace virtually anything in our current app by a different implementation, declaratively (apart from providing the new implementation class, implemen- ting the same interface). Another benefit is that Spring is non-intrusive by design and you can happily stick to the technology stack you already know it works. For instance, we still use Struts/Tiles instead of Spring MVC or JSF. Clearly worth a look, but be warned: if you've used it once, you won't ever want to go back :-) -- Chris. --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
