[
https://issues.apache.org/jira/browse/LUCENE-943?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Ronnie Kolehmainen updated LUCENE-943:
--------------------------------------
Attachment: LocaleBasedSortComparator.diff
Attached is an example SortComparator based on Locale and some tests.
> ComparatorKey in Locale based sorting
> -------------------------------------
>
> Key: LUCENE-943
> URL: https://issues.apache.org/jira/browse/LUCENE-943
> Project: Lucene - Java
> Issue Type: New Feature
> Components: Search
> Reporter: Ronnie Kolehmainen
> Priority: Minor
> Attachments: LocaleBasedSortComparator.diff
>
>
> This is a reply/follow-up on Chris Hostetter's message on Lucene developers
> list (aug 2006):
> http://mail-archives.apache.org/mod_mbox/lucene-java-dev/200608.mbox/[EMAIL
> PROTECTED]
> > perhaps it would be worthwhile for comparatorStringLocale to convert the
> > String[] it gets back from FieldCache.DEFAULT.getStrings to a new
> > CollationKey[]? or maybe even for FieldCache.DEFAULT.getStrings to be
> > deprecated, and replaced with a
> > FieldCache.DEFAULT.getCollationKeys(reader,field,Collator)?
> I think the best is to keep the default behavior as it is today. There is a
> cost of building caches for sort fields which I think not everyone wants.
> However for some international production environments there are indeed
> possible performance gains in comparing precalculated keys instead of
> comparing strings with rulebased collators.
> Since Lucene's Sort architecture is pluggable it is easy to create a custom
> locale-based comparator, which utilizes the built-in caching/warming
> mechanism of FieldCache, and may be used in SortField constructor.
> I'm not sure whether there should be classes for this in Lucene core or not,
> but it could be nice to have the option of performance vs. memory consumption
> in localized sorting without having to use additional jars.
--
This message is automatically generated by JIRA.
-
You can reply to this email to add a comment to the issue online.
---------------------------------------------------------------------
To unsubscribe, e-mail: [EMAIL PROTECTED]
For additional commands, e-mail: [EMAIL PROTECTED]
