[LUCENE-3830] MappingCharFilter could be improved by switching to an FST. - ASF JIRA

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Type: Improvement
Status: Patch Available
Priority: Minor
Resolution: Fixed
Affects Version/s: None
Fix Version/s: 4.0-ALPHA
Component/s: None
Labels:
- gsoc2012
- lucene-gsoc-12

Lucene Fields:

New

Description

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.

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LUCENE-3830.patch
30/Apr/12 17:03
28 kB
Michael McCandless
LUCENE-3830.patch
03/May/12 22:52
35 kB
Michael McCandless
PerfTestMappingCharFilter.java
03/May/12 22:52
10 kB
Michael McCandless
LUCENE-3830.patch
04/May/12 16:22
35 kB
Michael McCandless

Issue Links

is related to

LUCENE-3971 MappingCharFilter rarely has wrong correctOffset (for finalOffset)

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Assignee:: Michael McCandless

Reporter:: Dawid Weiss

Votes:: 0 Vote for this issue

Watchers:: 1 Start watching this issue

Dates

Created:: 28/Feb/12 09:41

Updated:: 15/Sep/24 22:24

Resolved:: 06/May/12 13:14