Re: Type-safe Prevayler, using generics

Cool! I'm all for a merge!

		karl

29 okt 2011 kl. 00.54 skrev Naveen Chawla:

> Small point, but by using generics, Prevayler has complete type-safety minus casting. Took me longer than expected, but I've attempted this on Prevayler source. I submitted a "fork" on the prevayler git - https://github.com/Navigateur/prevayler - I'm not very good at git, but I think that's how you want contributions submitted. Needs run time testing. Demo and test code modified to match. Summary usage:
> 
> instead of
> Prevayler prevayler
> use
> Prevayler<MyTypeToPrevail> prevayler
> 
> and instead of
> PrevaylerFactory prevaylerFactory
> use
> PrevaylerFactory<MyTypeToPrevail> prevaylerFactory
> 
> For your custom transactions/queries:
> replace
> implements Transaction{
> with
> implements Transaction<MyTypeToPrevail>{
> 
> and
> implements TransactionWithQuery{
> with
> implements TransactionWithQuery<MyTypeToPrevail, MyTypeToReturn>{
> same for Query, SureTransactionWithQuery
> 
> Then, you don't do any casting from Object to prevalent type, nor from ".execute" to return type, as these arrive in native form. 
> ("MyTypeToPrevail" is compiler-checked as implementing Serializable in all the above cases)
> 
> i.e. instead of
> (MyTypeToPrevail)prevalentSystem
> you just use
> prevalentSystem
> and instead of 
> (MyTypeToReturn)prevayler.execute(...
> you just use
> prevayler.execute(...
> 
> It might even run faster due to lack of run time casting on each transaction/query, who knows (not me). Hopefully you can test, and as soon as it works immediately release it as an update, or at least an immediate parallel choice as I really want this version now but with your genuine backing.
> 
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