[stellation-res] Error Handling In Stellation

[Onorio Catenacci <Catenacci@xxxxxxxx>]

Hi Jonathan,

In discussing error handling, you might find the following paper 
(documenting a Pattern Language for Error Handling) to be interesting and 
useful.

<http://www.objectarchitects.de/arcus/cookbook/exhandling/index.htm>

--
Onorio Catenacci


At 01:55 PM 1/11/03 -0500, you wrote:
> Some time ago Mark floated a suggestion about using AspectJ. I would like to
> start making use of it, and in particular I would like to use it to ensure
> that we have consistent handling for all exceptions that we throw.
>
> As I see it, we have the following major classes of exceptions.
>
> 1. Programming errors
> These derive from "impossible" paths that became possible or from warranted
> paranoid checking that turns out to be needed. For these exceptions, I would
> like to ensure that we do the following:
>
>    a) Log the exception.
>    b) Produce a stack trace
>
> 2. User errors
> These derive directly or indirectly from bad user input. I would like to
> ensure that we do the following:
>    a) Log the exception
>    b) For command line programs, tell the user what is wrong. It may be
> possihble to handle user error reporting for GUI programs as well, but it
> will take some careful analysis to determine if this can be clearly enough
> codified.
>
> 3. Data corruption errors
> Again make sure that we do the following:
>
>    a) Log the exception.
>    b) Produce a stack trace
>
> 4. Non-local transfer of control
> These exceptions need no special handling when they are thrown.