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https://issues.apache.org/jira/browse/LUCENE-1794?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12743774#action_12743774
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Robert Muir commented on LUCENE-1794:
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Shai, I will take a look at your patch as soon as I am at a real computer.
thanks for your work in advance, we maybe should put it on another issue though
just to keep the scope of this one reasonably contained.
{quote}
And ... we may want to constraint setPreviousTokenStream to Streams, or
TokenStream or a generic type of thing, to avoid casting and be more type-safe.
{quote}
see QueryAutoStopWordAnalyzer in my patch for a counter-example to this. in
this case, it is a Set, because it is dependent upon field.
> implement reusableTokenStream for all contrib analyzers
> -------------------------------------------------------
>
> Key: LUCENE-1794
> URL: https://issues.apache.org/jira/browse/LUCENE-1794
> Project: Lucene - Java
> Issue Type: Improvement
> Components: contrib/analyzers
> Reporter: Robert Muir
> Assignee: Robert Muir
> Priority: Minor
> Fix For: 2.9
>
> Attachments: LUCENE-1794-reusing-analyzer.patch, LUCENE-1794.patch,
> LUCENE-1794.patch, LUCENE-1794.patch, LUCENE-1794.patch, LUCENE-1794.patch,
> LUCENE-1794.patch
>
>
> most contrib analyzers do not have an impl for reusableTokenStream
> regardless of how expensive the back compat reflection is for indexing speed,
> I think we should do this to mitigate any performance costs. hey, overall it
> might even be an improvement!
> the back compat code for non-final analyzers is already in place so this is
> easy money in my opinion.
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