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From "Thomas Neidhart (JIRA)" <>
Subject [jira] [Commented] (COLLECTIONS-439) TreeBag with comparator does not store non-key duplicates.
Date Fri, 08 Feb 2013 08:47:14 GMT


Thomas Neidhart commented on COLLECTIONS-439:

Hi Claude,

this sounds good, would you mind creating a separate issue for the iterator, so that we can
better keep track of the changes.


> TreeBag with comparator does not store non-key duplicates.
> ----------------------------------------------------------
>                 Key: COLLECTIONS-439
>                 URL:
>             Project: Commons Collections
>          Issue Type: Improvement
>          Components: Bag
>    Affects Versions: 3.2.1
>            Reporter: Claude Warren
>         Attachments:
> When storing objects that are sorted by a Comparator, if the differences in the objects
are not in the comparator the same version of the object is returned.  I expected that the
sorted bag would work like a DB table with a non-unique key -- ordered but duplicate only
determined by Object.equals().
> I have implemented this type of bag using a TreeMap of List.  My implementation uses
the Jena ExtendedIterator to make building the iterator() and array() methods easier.
> Will attach the code.

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