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From Simon Pepping <spepp...@leverkruid.eu>
Subject Re: [VOTE] Merge XGC color branch into Trunk
Date Wed, 03 Nov 2010 10:03:09 GMT
On Wed, Nov 03, 2010 at 08:44:41AM +0100, Jeremias Maerki wrote:
> On 01.11.2010 21:29:14 Vincent Hennebert wrote:
> > More importantly, I keep thinking that there’s a design flaw in
> > ColorWithAlternatives. Its equals method breaks the contract defined on
> > Object.equals since it’s not symmetric. This is bound to cause
> > hard-to-track issues in client code. Also, the way equals is implemented
> > will make it systematically return false if an instance of
> > ColorWithAlternatives is being compared with an instance of a sub-class,
> > which may not be the desirable result.
> > 
> > Either ColorWithAlternatives is not a Color and therefore should not
> > extend the Color class; or its equals method should be changed to follow
> > the contract and the comparison of ColorWithAlternatives instances
> > should be implemented differently.
> Haven't I already brought this up and documented on the Wiki?
> http://wiki.apache.org/xmlgraphics/ColorHandling
> I guess I'll have to revisit the decisions from back then if two people
> are not happy with the current approach.

Indeed, you did. Sorry for missing that. Partly inspired by the recent
discussion about findbugs, I would prefer avoiding violations of OO


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