[
https://issues.apache.org/jira/browse/LUCENE-3830?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13268444#comment-13268444
]
Robert Muir commented on LUCENE-3830:
-------------------------------------
Why does mappingcharfilter itself cache FST arcs?
This seems like a slow thing to do per-reader. Shouldnt this be done
when you build the NormalizeCharMap instead?
> MappingCharFilter could be improved by switching to an FST.
> -----------------------------------------------------------
>
> Key: LUCENE-3830
> URL: https://issues.apache.org/jira/browse/LUCENE-3830
> Project: Lucene - Java
> Issue Type: Improvement
> Reporter: Dawid Weiss
> Assignee: Michael McCandless
> Priority: Minor
> Labels: gsoc2012, lucene-gsoc-12
> Fix For: 4.0
>
> Attachments: LUCENE-3830.patch, LUCENE-3830.patch,
> PerfTestMappingCharFilter.java
>
>
> MappingCharFilter stores an overly complex tree-like structure for matching
> input patterns. The input is a union of fixed strings mapped to a set of
> fixed strings; an fst matcher would be ideal here and provide both memory and
> speed improvement I bet.
--
This message is automatically generated by JIRA.
If you think it was sent incorrectly, please contact your JIRA administrators:
https://issues.apache.org/jira/secure/ContactAdministrators!default.jspa
For more information on JIRA, see: http://www.atlassian.com/software/jira
---------------------------------------------------------------------
To unsubscribe, e-mail: dev-unsubscr...@lucene.apache.org
For additional commands, e-mail: dev-h...@lucene.apache.org
