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https://issues.apache.org/jira/browse/LUCENE-7902?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16110215#comment-16110215
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Robert Muir commented on LUCENE-7902:
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Personally I think the IndexWriterConfig thing has a lot of downsides. Its an
additional class the user must worry about and more complicated than a POJO: i
think it makes something hard to use.
In the case of IndexWriter there were so many getters and setters that we made
this change due to the sheer number, but I don't really see that as a good
thing either :)
> Refactoring of IndexSearcher
> ----------------------------
>
> Key: LUCENE-7902
> URL: https://issues.apache.org/jira/browse/LUCENE-7902
> Project: Lucene - Core
> Issue Type: Improvement
> Components: core/search
> Reporter: João Paulo Lemes Machado
>
> Hello everyone.
> I was analyzing the modularization of some classes, and I identified that the
> class IndexSearcher has an opportunity for cohesion improvement.
> The class IndexWriter was in the same situation and the problem was solved as
> follows: The IndexWriterConfig class was created, and several get() and set()
> methods that were used only to configure the class parameters were moved from
> IndexWriter to IndexWriterConfig.
> The new class was then accessed through an instance variable in IndexWriter.
> This strategy has cleaned and improved IndexWriter cohesion.
> With this in mind, I would recommend creating a new class:
> IndexSearcherConfig , and moving the following methods:
> setDefaultQueryCachingPolicy
> getDefaultQueryCachingPolicy
> getQueryCachingPolicy
> setQueryCachingPolicy
> setQueryCache
> getQueryCache
> setDefaultQueryCache
> getDefaultQueryCache
> setSimilarity
> getSimilarity
> from the IndexSearcher.
> Those parameters accessed by an instance variable in the IndexSearcher.
> Moreover, the orthogonality is the design would be enhanced.
> What do you think about that?
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