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Yonik Seeley commented on SOLR-3017:
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bq. Are we concerned about breaking code that may be calling StopFilterFactory.create()
Nope. I've just committed this change in trunk. There wasn't a good reason to use a more
specific type (and it was not used anywhere).
> Allow edismax stopword filter factory implementation to be specified
> --------------------------------------------------------------------
>
> Key: SOLR-3017
> URL: https://issues.apache.org/jira/browse/SOLR-3017
> Project: Solr
> Issue Type: Improvement
> Affects Versions: 4.0
> Reporter: Michael Dodsworth
> Priority: Minor
> Fix For: 4.0
>
> Attachments: SOLR-3017-without-guava-alternative.patch, SOLR-3017.patch, SOLR-3017.patch,
edismax_stop_filter_factory.patch
>
>
> Currently, the edismax query parser assumes that stopword filtering is being done by
StopFilter: the removal of the stop filter is performed by looking for an instance of 'StopFilterFactory'
(hard-coded) within the associated field's analysis chain.
> We'd like to be able to use our own stop filters whilst keeping the edismax stopword
removal goodness. The supplied patch allows the stopword filter factory class to be supplied
as a param, "stopwordFilterClassName". If no value is given, the default (StopFilterFactory)
is used.
> Another option I looked into was to extend StopFilterFactory to create our own filter.
Unfortunately, StopFilterFactory's 'create' method returns StopFilter, not TokenStream. StopFilter
is also final.
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