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Groups > comp.lang.java.programmer > #30238
| From | Robert Klemme <shortcutter@googlemail.com> |
|---|---|
| Newsgroups | comp.lang.java.programmer |
| Subject | Re: redesign exception |
| Date | 2014-10-29 18:59 +0100 |
| Message-ID | <cbco8kFtjp7U1@mid.individual.net> (permalink) |
| References | (9 earlier) <6fa2df26-9917-49b8-8366-087afdcc06f8@googlegroups.com> <cbbjkiFjvvcU1@mid.individual.net> <m2qics$d01$1@dont-email.me> <m2r654$j6g$1@speranza.aioe.org> <m2r85a$t4j$1@dont-email.me> |
On 29.10.2014 18:29, Martin Gregorie wrote: > I believe a good case can be made that invalid data isn't really an > Exception because having both good and bad data input is part of normal > processing and therefore something like a boolean VALID/INVALID return > from the checking method is alll that's needed. Throwing exceptions > should be reserved for processing errors, e.g. a public holiday check on > an in-range future date discovering that the valid public holiday list > doesn't cover all permitted future dates, or finding that the input > represents a security violation serious enough to require attention from > somebody other than the user who input it. We could discuss quite a bit about this... If the interfacing code does not ensure valid input is passed on than it is totally appropriate for lower layers of code to flag this as a processing error (usually via a RuntimeException like InvalidArgumentException or NPE). A checking method with a boolean (or more sophisticated) return value can only ever be a useful helper but the code receiving data still needs to throw if the contract is violated. There is really no other way. Kind regards robert
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redesign exception boxzou@gmail.com - 2014-10-25 19:16 -0700
Re: redesign exception Joerg Meier <joergmmeier@arcor.de> - 2014-10-26 08:09 +0100
Re: redesign exception rossum <rossum48@coldmail.com> - 2014-10-26 09:15 +0000
Re: redesign exception Joerg Meier <joergmmeier@arcor.de> - 2014-10-26 10:36 +0100
Re: redesign exception Eric Sosman <esosman@comcast-dot-net.invalid> - 2014-10-26 09:23 -0400
Re: redesign exception boxzou@gmail.com - 2014-10-26 12:56 -0700
Re: redesign exception Eric Sosman <esosman@comcast-dot-net.invalid> - 2014-10-26 18:10 -0400
Re: redesign exception boxzou@gmail.com - 2014-10-26 17:39 -0700
Re: redesign exception boxzou@gmail.com - 2014-10-26 12:06 -0700
Re: redesign exception Joerg Meier <joergmmeier@arcor.de> - 2014-10-26 20:41 +0100
Re: redesign exception boxzou@gmail.com - 2014-10-26 12:46 -0700
Re: redesign exception boxzou@gmail.com - 2014-10-26 13:12 -0700
Re: redesign exception Leif Roar Moldskred <leifm@huldreskog.localdomain> - 2014-10-26 16:50 -0500
Re: redesign exception boxzou@gmail.com - 2014-10-26 17:21 -0700
Re: redesign exception Martin Gregorie <martin@address-in-sig.invalid> - 2014-10-27 01:05 +0000
Re: redesign exception boxzou@gmail.com - 2014-10-26 19:38 -0700
Re: redesign exception Leif Roar Moldskred <leifm@huldreskog.localdomain> - 2014-10-27 00:13 -0500
Re: redesign exception boxzou@gmail.com - 2014-10-27 04:59 -0700
Re: redesign exception Marketa Jadalova <m-jadalova3@gmail.com> - 2014-10-27 16:55 +0000
Re: redesign exception Leif Roar Moldskred <leifm@huldreskog.localdomain> - 2014-10-27 12:46 -0500
Re: redesign exception boxzou@gmail.com - 2014-10-27 15:48 -0700
Re: redesign exception Leif Roar Moldskred <leifm@huldreskog.localdomain> - 2014-10-27 22:16 -0500
Re: redesign exception Robert Klemme <shortcutter@googlemail.com> - 2014-10-27 23:54 +0100
Re: redesign exception boxzou@gmail.com - 2014-10-27 17:20 -0700
Re: redesign exception boxzou@gmail.com - 2014-10-28 07:12 -0700
Re: redesign exception Robert Klemme <shortcutter@googlemail.com> - 2014-10-29 08:34 +0100
Re: redesign exception Martin Gregorie <martin@address-in-sig.invalid> - 2014-10-29 11:17 +0000
Re: redesign exception Silvio <silvio@internet.com> - 2014-10-29 15:33 +0100
Re: redesign exception Leif Roar Moldskred <leifm@huldreskog.localdomain> - 2014-10-29 11:35 -0500
Re: redesign exception boxzou@gmail.com - 2014-10-29 17:51 -0700
Re: redesign exception Leif Roar Moldskred <leifm@huldreskog.localdomain> - 2014-10-29 20:45 -0500
Re: redesign exception boxzou@gmail.com - 2014-10-30 04:12 -0700
Re: redesign exception Silvio <silvio@internet.com> - 2014-10-30 12:38 +0100
Re: redesign exception boxzou@gmail.com - 2014-10-30 06:23 -0700
Re: redesign exception boxzou@gmail.com - 2014-10-29 17:01 -0700
Re: redesign exception Marketa Jadalova <m-jadalova3@gmail.com> - 2014-10-29 16:55 +0000
Re: redesign exception Martin Gregorie <martin@address-in-sig.invalid> - 2014-10-29 17:29 +0000
Re: redesign exception Robert Klemme <shortcutter@googlemail.com> - 2014-10-29 18:59 +0100
Re: redesign exception Martin Gregorie <martin@address-in-sig.invalid> - 2014-10-29 22:05 +0000
Re: redesign exception boxzou@gmail.com - 2014-10-29 18:04 -0700
Re: redesign exception Leif Roar Moldskred <leifm@huldreskog.localdomain> - 2014-10-29 20:56 -0500
Re: redesign exception boxzou@gmail.com - 2014-10-30 04:19 -0700
Re: redesign exception boxzou@gmail.com - 2014-10-30 04:27 -0700
Re: redesign exception boxzou@gmail.com - 2014-10-30 04:35 -0700
Re: redesign exception boxzou@gmail.com - 2014-10-29 18:01 -0700
Re: redesign exception boxzou@gmail.com - 2014-10-29 17:00 -0700
Re: redesign exception boxzou@gmail.com - 2014-10-29 16:56 -0700
Re: redesign exception boxzou@gmail.com - 2014-10-26 12:52 -0700
Re: redesign exception Silvio <silvio@internet.com> - 2014-10-27 09:03 +0100
Re: redesign exception boxzou@gmail.com - 2014-10-27 05:06 -0700
Re: redesign exception Silvio <silvio@internet.com> - 2014-10-27 13:32 +0100
Re: redesign exception boxzou@gmail.com - 2014-10-27 07:01 -0700
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