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From Michael Heuer <heue...@acm.org>
Subject Re: [collections] [proposal] Bag interface change
Date Mon, 29 Dec 2003 20:58:26 GMT

Stephen Colebourne wrote:

> I am proposing to change the Bag interface.
> http://jakarta.apache.org/commons/collections/api/org/apache/commons/collections/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'm seeing a problem related to this change with an unit test for a class
that extends AbstractBagDecorator, but this failure doesn't show up in the
[collections] unit tests.

Will investigate further.

   michael


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