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From: "Arne Vajhøj" <arne.vajhøj@1:261/38.remove-fzq-this>
Subject: Re: hashCode
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Date: Mon, 20 Aug 2012 18:58:36 GMT
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  To: Robert Klemme
From: Arne Vajhoj <arne@vajhoej.dk>

On 8/13/2012 1:17 PM, Robert Klemme wrote:
> On 12.08.2012 22:59, Arne Vajhoj wrote:
>> But the code should actually work.
>
> Yes, sort of - depending on whether O(1) is a requirement or not.

That is a rare functional requirement.

(common non-functional)

>                                                                 Still,
> the idea to implement hashCode() in Object in a way to return a constant
> to avoid necessity of overriding it is crazy - especially since you then
> cannot efficiently use Object as hash key - which you can today.

Actually the more I think about the question the more logical it sounds!

We are looking at two alternatives: A) default functions properly but good 
performance requires an override B) default gives good performance but may need 
an override to function properly

#A actually sounds more the Java way to me.

Arne

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