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From Grant Ingersoll <gsing...@syr.edu>
Subject Re: Lazy Field Loading
Date Fri, 31 Mar 2006 20:42:53 GMT
OK, #4 it is.  I will most likely submit a patch this weekend.


Andrzej Bialecki wrote:
> Yonik Seeley wrote:
>> On 3/31/06, Erik Hatcher <erik@ehatchersolutions.com> wrote:
>>  
>>> I prefer option #4 myself.   Also note that a similar issue with
>>> patches exists within JIRA:
>>>
>>>         <https://issues.apache.org:443/jira/browse/LUCENE-509>
>>>     
>>
>> Yes, I'd personally find a way to retrieve just fields x,y, and z more
>> useful than lazy loading.
>> It  seems like lazy loading could be useful if you do something with
>> field values that is conditional on the value of other fields... a
>> case I haven't run into.
>>   
>
> Use cases in Nutch would also indicate that #4 is the most convenient 
> option, and rule out options #1 and #3 (and perhaps #2 due to 
> efficiency). Various fields from Lucene indexes are used for e.g. 
> sorting, where sorting field is selected by users during run time. 
> Some field values help with Hits presentation, while other values 
> should only be retrieved when requesting all hit's "metadata" - again, 
> using the same index. So, option #4 would be really useful.
>

-- 

Grant Ingersoll 
Sr. Software Engineer 
Center for Natural Language Processing 
Syracuse University 
School of Information Studies 
335 Hinds Hall 
Syracuse, NY 13244 

http://www.cnlp.org 
Voice:  315-443-5484 
Fax: 315-443-6886 


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