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From robert burrell donkin <robertburrelldon...@blueyonder.co.uk>
Subject RE: [betwixt] Exception suppression
Date Tue, 07 Mar 2006 23:31:26 GMT
On Tue, 2006-03-07 at 17:21 -0500, Igor Marakov wrote:
> Robert,
> Do you have an approximate list of exceptions that SHOULD be handled by
> betwixt?

i'm not sure a general list is possible: the semantics of each method
mean that it would need to be done on a case-by-case basis. for some
APIs, an exception may indicate that the object is basically DOA, others
may throw exceptions when the input is outside acceptable bounds. there
are also some APIs which throw exceptions to communicate unusual
circumstances which are not necessarily errors. in this last case, users
may not want the mapping to terminate.

if i'd have designed the interface, i would probably have defaulted to
rethrowing all target exceptions but i'd have been wrong. this is
probably something that should be configurable: factor out a strategy
for processing the exception. have a switch in the configuration and let
users choose.

- robert


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