Re: The wisdom of the object mentors (Was: Searching OO Associations with RDBMS Persistence Models)
From: Bob Badour <bbadour_at_pei.sympatico.ca>
Date: Wed, 31 May 2006 22:36:06 GMT
Message-ID: <qTofg.15713$A26.365644_at_ursa-nb00s0.nbnet.nb.ca>
>> Robert Martin wrote:
>>
>>> Application developers get into trouble when they DONT treat the
>>> database as a detail.
>>
>>
>>
>> Robert, you claim 35 years of application programming experience. Have
>> you ever come across a performance problem when database is accessed
>> via API
>>
>> getItemIdList
>> getItemDetail
>>
>> so that a single jsp page issued a hundred SQL statements instead of a
>> single one? Come on, this one is so common that it surfaces on every
>> performance meeting.
>
> This problem is easily solved via caching.
Date: Wed, 31 May 2006 22:36:06 GMT
Message-ID: <qTofg.15713$A26.365644_at_ursa-nb00s0.nbnet.nb.ca>
Joe Van Dyk wrote:
> Mikito Harakiri wrote: >
>> Robert Martin wrote:
>>
>>> Application developers get into trouble when they DONT treat the
>>> database as a detail.
>>
>>
>>
>> Robert, you claim 35 years of application programming experience. Have
>> you ever come across a performance problem when database is accessed
>> via API
>>
>> getItemIdList
>> getItemDetail
>>
>> so that a single jsp page issued a hundred SQL statements instead of a
>> single one? Come on, this one is so common that it surfaces on every
>> performance meeting.
>
> This problem is easily solved via caching.
You hope, but if one nests the above type of construct, even caching may not save one. Received on Thu Jun 01 2006 - 00:36:06 CEST