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From Leszek Gawron <lgaw...@mobilebox.pl>
Subject Re: OT: O/R collection mapping [was: SQLTransformer]
Date Tue, 06 Sep 2005 13:35:04 GMT
Vadim Gritsenko wrote:
> Leszek Gawron wrote:
> 
>> - Marathon class:
>>   - name
>>   - place
>>   - date
>>   - thoseWhoFinishedTheRace collection which is a sorted list of those 
>> Persons who managed to get to the finish line. The list is sorted in 
>> an order of finishing so thoseWhoFinishedTheRace().get( 0 ) is the 
>> winner.
>>
>> In this example the collection is not _sorted_ - it is _ordered_ with 
>> information not available to Person bean. The use of index field is 
>> mandatory - it's not bad database design.
> 
> 
> It is bad - good design will have 'finished' timestamp ;-P
LOL. Still there are several usecases when you do not have a field to 
sort on like "a list of shirts I like best starting from the most 
favourite one". :)

-- 
Leszek Gawron                                      lgawron@mobilebox.pl
IT Manager                                         MobileBox sp. z o.o.
+48 (61) 855 06 67                              http://www.mobilebox.pl
mobile: +48 (501) 720 812                       fax: +48 (61) 853 29 65

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