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From "Stephen Colebourne" <scolebou...@btopenworld.com>
Subject Re: [collections] [proposal] Bag interface change
Date Thu, 25 Dec 2003 00:48:18 GMT
Change subject so it passes mail filters ;-)

From: "Stephen Colebourne" <scolebourne@btopenworld.com>
> I am proposing to change the Bag interface.
>
http://jakarta.apache.org/commons/collections/api/org/apache/commons/collect
> ions/Bag.html
>
> Add:
> equals(Object) - Two Bags are equal if they contain the same number of
> occurrences of all the same elements.
> hashCode() - The hashCode is defined as the sum total of each elements
> hashcode, where the hashcode for an element is defined as (e==null   ? 0 :
> e.hashCode()) ^ noOccurances)
>
> This will enable Bags to be compared.
>
> I am tempted to change the rest of the interface, to fix the violations of
> Collection, however that is probably a bad idea.
>
> Stephen



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