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https://issues.apache.org/jira/browse/LUCENE-2034?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12774029#action_12774029
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Uwe Schindler commented on LUCENE-2034:
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Even in core it will be a separate class, because it makes tokenStream() and
reusableTokenStream() final, so users want to create an old style Analyzer
cannot do this. So we need a good name even for core.
> Massive Code Duplication in Contrib Analyzers - unifly the analyzer ctors
> -------------------------------------------------------------------------
>
> Key: LUCENE-2034
> URL: https://issues.apache.org/jira/browse/LUCENE-2034
> Project: Lucene - Java
> Issue Type: Improvement
> Components: contrib/analyzers
> Affects Versions: 2.9
> Reporter: Simon Willnauer
> Priority: Minor
> Fix For: 3.0
>
> Attachments: LUCENE-2034.patch, LUCENE-2034.patch, LUCENE-2034.patch
>
>
> Due to the variouse tokenStream APIs we had in lucene analyzer subclasses
> need to implement at least one of the methodes returning a tokenStream. When
> you look at the code it appears to be almost identical if both are
> implemented in the same analyzer. Each analyzer defnes the same inner class
> (SavedStreams) which is unnecessary.
> In contrib almost every analyzer uses stopwords and each of them creates his
> own way of loading them or defines a large number of ctors to load stopwords
> from a file, set, arrays etc.. those ctors should be removed / deprecated and
> eventually removed.
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