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From Steven Bethard <beth...@stanford.edu>
Subject Re: Why is CustomScoreQuery limited to ValueSourceQuery type?
Date Tue, 21 Apr 2009 16:58:49 GMT
On 4/21/2009 12:47 AM, Doron Cohen wrote:
> CustomScoreQuery expects the VSQs to have a score for document matching the
> (main) subQuery - this does not hold for arbitrary queries.

Sure, but it could easily assign 0.0 scores for sub-queries that didn't
match, no?

Steve

> On Sat, Apr 18, 2009 at 2:35 AM, Steven Bethard <bethard@stanford.edu>wrote:
> 
>> CustomScoreQuery only allows the secondary queries to be of type
>> ValueSourceQuery instead of allowing them to be any type of Query. Why
>> is that? Is there something that makes it hard to implement for
>> arbitrary queries?
>>
>> Steve
>>
>> P.S. I played around with this briefly, and simply replacing all
>> ValueSourceQuery references with Query references yields only one simple
>> compile error, where ValueSourceQuery.createWeight() is being used
>> instead of Query.weight() for some reason.
>>
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> 


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