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From Emmanuel Lecharny <>
Subject Re: Dn should probably not implement Comparable
Date Tue, 15 Feb 2011 19:09:26 GMT
On 2/15/11 8:00 PM, Kiran Ayyagari wrote:
> On Tue, Feb 15, 2011 at 8:53 PM, Emmanuel Lecharny<>  wrote:
>> Hi,
>> the compareTo method has a semantic that probably does not applies to the Dn
>> class : either two DNs are equals, or they are different, but they aren't
>> superior or inferior, except if one is the parent of the other.
>> As we already have a isParent and isChild methods, I suggest we remove the
>> compareTo() methods (which is never used) and not implemen the
>> Comparable<Dn>  interface.
> I suggest we keep this, think of ordering the Entry objects while
> performing an export
> (sorting a huge number of entries won't be the ideal case, but when we
> have a few entries which are fetched in an adhoc manner(i.e without
> performing repetitive one level searches))

The thing is that there is no way to order a list of DNs, as there is no 
such a MatchingRule as DnOrderingMatch. How do you order two DNs which 
RDN don't have the same AttributeType ?

I have checked RFC 4517, and after having read it, I saw that comparing 
two DNs is just meant to check that they are equal, or not. No order is 

Emmanuel L├ęcharny

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