Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]


Groups > comp.lang.java.programmer > #28432

Re: @java.lang.DontOverride

Path csiph.com!v102.xanadu-bbs.net!xanadu-bbs.net!feeder.erje.net!eu.feeder.erje.net!eternal-september.org!feeder.eternal-september.org!news.eternal-september.org!mit.eternal-september.org!.POSTED!not-for-mail
From Simon Lewis <simonlewis2001@gmail.com>
Newsgroups comp.lang.java.programmer
Subject Re: @java.lang.DontOverride
Date Sun, 11 May 2014 11:03:12 +0200
Organization Lewis
Lines 15
Message-ID <87bnv47kmn.fsf@gmail.com> (permalink)
References <override-20140511031054@ram.dialup.fu-berlin.de>
Mime-Version 1.0
Content-Type text/plain; charset=utf-8
Content-Transfer-Encoding 8bit
Injection-Info mit.eternal-september.org; posting-host="4a26d5f9613c414e2e4817c03702b3c3"; logging-data="19502"; mail-complaints-to="abuse@eternal-september.org"; posting-account="U2FsdGVkX1+WWeaVl1NXmKDbBA1pHk1MFwbjnmcLruo="
User-Agent Gnus/5.13 (Gnus v5.13) Emacs/24.3 (gnu/linux)
Cancel-Lock sha1:L570Lv4Gwf63ZUymlt/cTcxPJ9k= sha1:XZ50GrZ+D6Oj8hmwFEJvVlYh+wY=
Xref csiph.com comp.lang.java.programmer:28432

Show key headers only | View raw


ram@zedat.fu-berlin.de (Stefan Ram) writes:

> class Example extends javax.swing.JComponent
> { public boolean isValid(){ return true; }}
>
>   I do not want to override any method of JComponent with my method.
>   I just want to add a new method. But now or in future versions of
>   Swing there might be an »isValid« method in JComponent. So I'd like
>   to have a @java.lang.DontOverride annotation with the following
>   meaning: »Aborts compilation if any base class has a non-private
>   method of the same name.« Why do we have @java.lang.Ovverride, but
>   not the opposite? Or have I missed something?

A rare requirement but you could just try and call the superclass method
and catch any exception that results and call your own one.

Back to comp.lang.java.programmer | Previous | Next | Find similar | Unroll thread


Thread

Re: @java.lang.DontOverride Simon Lewis <simonlewis2001@gmail.com> - 2014-05-11 11:03 +0200

csiph-web