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From "Grant Ingersoll (JIRA)" <>
Subject [jira] Reopened: (LUCENE-1790) Add Boosting Function Term Query and Some Payload Query refactorings
Date Thu, 13 Aug 2009 20:57:15 GMT


Grant Ingersoll reopened LUCENE-1790:

Going to reopen and actually pass along the Term and the position information into both the
new scorePayload() method and into the PayloadFunction, as it may be useful to know this information
when scoring payloads.

> Add Boosting Function Term Query and Some Payload Query refactorings
> --------------------------------------------------------------------
>                 Key: LUCENE-1790
>                 URL:
>             Project: Lucene - Java
>          Issue Type: New Feature
>            Reporter: Grant Ingersoll
>            Assignee: Grant Ingersoll
>            Priority: Minor
>             Fix For: 2.9
>         Attachments: LUCENE-1790.patch, LUCENE-1790.patch, LUCENE-1790.patch
> Similar to the BoostingTermQuery, the BoostingFunctionTermQuery is a SpanTermQuery, but
the difference is the payload score for a doc is not the average of all the payloads, but
applies a function to them instead.  BoostingTermQuery becomes a BoostingFunctionTermQuery
with an AveragePayloadFunction applied to it.
> Also add marker interface to indicate PayloadQuery types.  Refactor Similarity.scorePayload
to also take in the doc id.

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