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From "Steven Rowe (JIRA)" <j...@apache.org>
Subject [jira] Commented: (LUCENE-1435) CollationKeyFilter: convert tokens into CollationKeys encoded using IndexableBinaryStringTools
Date Wed, 18 Mar 2009 21:13:50 GMT

    [ https://issues.apache.org/jira/browse/LUCENE-1435?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12683174#action_12683174
] 

Steven Rowe commented on LUCENE-1435:
-------------------------------------

It's in contrib/miscellaneous/

I used AnalyzingQueryParser in the tests to allow CollationKeyFilter to be applied to the
terms in the range query - the standard QueryParser doesn't analyze range terms.

From:

http://lucene.apache.org/java/2_4_1/api/org/apache/lucene/queryParser/analyzing/AnalyzingQueryParser.html

bq. Overrides Lucene's default QueryParser so that Fuzzy-, Prefix-, Range-, and WildcardQuerys
are also passed through the given analyzer, but wild card characters (like *) don't get removed
from the search terms. 

This is a (test-only) cross-contrib dependency.  I'm not sure why I didn't have trouble with
compilation - I haven't looked at this in months.  I'll take a look later on tonight.

> CollationKeyFilter: convert tokens into CollationKeys encoded using IndexableBinaryStringTools
> ----------------------------------------------------------------------------------------------
>
>                 Key: LUCENE-1435
>                 URL: https://issues.apache.org/jira/browse/LUCENE-1435
>             Project: Lucene - Java
>          Issue Type: New Feature
>    Affects Versions: 2.4
>            Reporter: Steven Rowe
>            Assignee: Michael McCandless
>            Priority: Minor
>             Fix For: 2.9
>
>         Attachments: LUCENE-1435.patch, LUCENE-1435.patch, LUCENE-1435.patch
>
>
> Converts each token into its CollationKey using the provided collator, and then encodes
the CollationKey with IndexableBinaryStringTools, to allow it to be stored as an index term.
> This will allow for efficient range searches and Sorts over fields that need collation
for proper ordering.

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