Michael McCandless created LUCENE-8459:
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Summary: Add SearcherTaxonomyManager constructor taking already
opened readers
Key: LUCENE-8459
URL: https://issues.apache.org/jira/browse/LUCENE-8459
Project: Lucene - Core
Issue Type: Bug
Components: modules/facet
Reporter: Michael McCandless
Assignee: Michael McCandless
Fix For: master (8.0), 7.5
Today it either takes {{IndexWriter}} or {{Directory}} (and it opens its own
{{DirectoryReader}}s) ... but I'd like to pass in my own reader so that e.g. I
can use a {{FilterDirectoryReader}}. This is useful e.g. for tracking fun low
level stats like how many term dictionary lookups your queries are doing.
My first attempt was to do my wrapping in {{SearcherFactory}}, but
{{SearcherManager}} gets angry when you do that ("SearcherFactory must wrap
exactly the provided reader").
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