Re: [Prevayler-coders] Exception handling philosophy

[Klaus W. <kla...@gm...>]

Hi Justin,

Could you explain these a bit more and give some examples?

Thanks, Klaus.


On Sun, Apr 20, 2008 at 2:09 PM, Justin T. Sampson <ju...@kr...> wrote:
> Howdy,
>
>  I'm getting close to finishing the Git migration. While looking
>  through the prevayler.org svn commits, I found more of my ideas about
>  exception handling. Jake will be happy to hear that I had indeed
>  eventually eliminated SkaringaException. :) As of the svn head,
>  PrevaylerException, PrevaylerIOException, and PrevaylerError are gone,
>  with a new PrevalenceError serving some of their purposes. And here's
>  an interesting comment from that class:
>
>     // Exception-handling notes:
>     //
>     // Don't expect checked and unchecked Exceptions to have different semantic
>     // importance
>     //
>     // Never drop or wrap an Error
>     //
>     // Never throw a new checked Exception
>     //
>     // Throw a PrevalenceError for any abstraction-violating occurrence in
>     // operation
>     //
>     // Throw a RuntimeException for any configuration problems
>     //
>     // Never allow the system to continue operating in an inconsistent state
>     //
>     // Never hang
>
>  Thoughts?
>
>  Cheers,
>  Justin
>
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