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https://issues.apache.org/jira/browse/LUCENE-6570?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Adrien Grand reopened LUCENE-6570:
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I removed the controversial query cloning. Reopening to think about how we
should handle the boost factor then. Options include cloning as part of
createWeight since the query we are really interested in is the one returned by
Weight.getQuery(), removing "void setBoost(boost)" in favour of something like
"Query withBoost(boost)" or even remove the boost parameter from our queries
and handle it externally.
> Make BooleanQuery immutable
> ---------------------------
>
> Key: LUCENE-6570
> URL: https://issues.apache.org/jira/browse/LUCENE-6570
> Project: Lucene - Core
> Issue Type: Task
> Reporter: Adrien Grand
> Assignee: Adrien Grand
> Priority: Minor
> Fix For: 6.0
>
> Attachments: LUCENE-6570.patch
>
>
> In the same spirit as LUCENE-6531 for the PhraseQuery, we should make
> BooleanQuery immutable.
> The plan is the following:
> - create BooleanQuery.Builder with the same setters as BooleanQuery today
> (except setBoost) and a build() method that returns a BooleanQuery
> - remove setters from BooleanQuery (except setBoost)
> I would also like to add some static utility methods for common use-cases of
> this query, for instance:
> - static BooleanQuery disjunction(Query... queries) to create a disjunction
> - static BooleanQuery conjunction(Query... queries) to create a conjunction
> - static BooleanQuery filtered(Query query, Query... filters) to create a
> filtered query
> Hopefully this will help keep tests not too verbose, and the latter will also
> help with the FilteredQuery derecation/removal.
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