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https://issues.apache.org/jira/browse/LUCENE-1608?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12701683#action_12701683
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Doron Cohen commented on LUCENE-1608:
-------------------------------------
I thought I had written a class exactly for this purpose but I was wrong - my
class was different in that it had an actual value source, just that it was
sparse - values for quite many docs were missing. It is similar in a way, but
different since here the input is a query.
But I did promise... so I wrote a quick wrapper for a query to create a value
source.
That value source can be used to create a value source query.
Although the patch coming soon is tested and all, I am not considering to
commit this patch, because it is not clean.
I would like to reorganize this package to take better care of this request and
other related issues (like LUCENE-850) and to make it worth for Solr to move to
use this package. (last time I checked it wasn't). But this is a different
issue...
> CustomScoreQuery should support arbitrary Queries
> -------------------------------------------------
>
> Key: LUCENE-1608
> URL: https://issues.apache.org/jira/browse/LUCENE-1608
> Project: Lucene - Java
> Issue Type: New Feature
> Components: Query/Scoring
> Reporter: Steven Bethard
> Assignee: Doron Cohen
> Priority: Minor
>
> CustomScoreQuery only allows the secondary queries to be of type
> ValueSourceQuery instead of allowing them to be any type of Query. As a
> result, what you can do with CustomScoreQuery is pretty limited.
> It would be nice to extend CustomScoreQuery to allow arbitrary Query objects.
> Most of the code should stay about the same, though a little more care would
> need to be taken in CustomScorer.score() to use 0.0 when the sub-scorer does
> not produce a score for the current document.
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