[#LUCENE-446] search.function - (1) score based on field value, (2) simple score customizability

Lucene - Java

search.function - (1) score based on field value, (2) simple score customizability

Created: 05/Oct/05 05:23 AM Updated: 19/Jun/07 08:14 AM

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Component/s:

Affects Version/s:

None

Fix Version/s:

2.2

Time Tracking:

Not Specified

File Attachments:

File Name	Date Attached	Attached By	Size
function.patch.txt	2007-06-05 02:33 AM	Doron Cohen	117 kB
function.patch.txt	2007-05-05 07:04 AM	Doron Cohen	93 kB
function.patch.txt	2007-05-03 03:09 AM	Doron Cohen	93 kB
function.zip	2005-12-01 04:56 AM	Yonik Seeley	9 kB
function.zip	2005-12-01 02:56 AM	Yonik Seeley	9 kB

Issue Links:

Reference

This issue relates to:

SOLR-192 Move FunctionQuery to Lucene

This issue is related to:

LUCENE-850 Easily create queries that transform subquery scores arbitrarily

Lucene Fields:	Patch Available
Resolution Date:	05/Jun/07 04:39 PM

Description

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FunctionQuery can return a score based on a field's value or on it's ordinal value.

FunctionFactory subclasses define the details of the function. There is currently a LinearFloatFunction (a line specified by slope and intercept).

Field values are typically obtained from FieldValueSourceFactory. Implementations include FloatFieldSource, IntFieldSource, and OrdFieldSource.

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Work Log

Change History

Subversion Commits

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Repository	Revision	Date	User	Message
ASF	#544546	Tue Jun 05 16:29:35 UTC 2007	doronc	~~LUCENE-446~~: Added Solr's search.function for scores based on field values, plus CustomScoreQuery for simple score (post) customization.
				Files Changed
				ADD /lucene/java/trunk/src/test/org/apache/lucene/search/function ADD /lucene/java/trunk/src/test/org/apache/lucene/search/function/TestFieldScoreQuery.java ADD /lucene/java/trunk/src/java/org/apache/lucene/search/function/ByteFieldSource.java ADD /lucene/java/trunk/src/java/org/apache/lucene/search/function/ValueSource.java ADD /lucene/java/trunk/src/test/org/apache/lucene/search/function/TestCustomScoreQuery.java MODIFY /lucene/java/trunk/src/java/org/apache/lucene/util/ToStringUtils.java ADD /lucene/java/trunk/src/java/org/apache/lucene/search/function/CustomScoreQuery.java ADD /lucene/java/trunk/src/java/org/apache/lucene/search/function/IntFieldSource.java ADD /lucene/java/trunk/src/test/org/apache/lucene/search/function/FunctionTestSetup.java ADD /lucene/java/trunk/src/test/org/apache/lucene/search/function/TestOrdValues.java ADD /lucene/java/trunk/src/java/org/apache/lucene/search/function/FieldCacheSource.java MODIFY /lucene/java/trunk/src/java/org/apache/lucene/search/FieldCacheImpl.java ADD /lucene/java/trunk/src/java/org/apache/lucene/search/function MODIFY /lucene/java/trunk/src/java/org/apache/lucene/search/FieldCache.java ADD /lucene/java/trunk/src/java/org/apache/lucene/search/function/package.html ADD /lucene/java/trunk/src/java/org/apache/lucene/search/function/ValueSourceQuery.java ADD /lucene/java/trunk/src/java/org/apache/lucene/search/function/DocValues.java ADD /lucene/java/trunk/src/java/org/apache/lucene/search/function/ShortFieldSource.java ADD /lucene/java/trunk/src/java/org/apache/lucene/search/function/FloatFieldSource.java ADD /lucene/java/trunk/src/java/org/apache/lucene/search/function/ReverseOrdFieldSource.java MODIFY /lucene/java/trunk/CHANGES.txt ADD /lucene/java/trunk/src/java/org/apache/lucene/search/function/OrdFieldSource.java ADD /lucene/java/trunk/src/java/org/apache/lucene/search/function/FieldScoreQuery.java