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https://issues.apache.org/jira/browse/SOLR-1644?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12789919#action_12789919
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Noble Paul commented on SOLR-1644:
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bq. if ((Boolean)rb.store.get(HighlightingComponent.DO_HIGHLIGHTING))

This may cause NPE

so it will look like 

if (rb.store.get(HighlightingComponent.DO_HIGHLIGHTING) == Boolean.TRUE)

definitely it looks verbose (ugly) . But the point is where do we stop? Which 
all components qualify to be important enough. Is 'my component' 
more/lessimportant than FacetComponent. If we set a coding standard , isn't 
that better? I believe the public API's  should have no dependency on 
components .

> Provide a clean way to keep flags and helper objects in ResponseBuilder
> -----------------------------------------------------------------------
>
>                 Key: SOLR-1644
>                 URL: https://issues.apache.org/jira/browse/SOLR-1644
>             Project: Solr
>          Issue Type: Improvement
>          Components: search
>            Reporter: Shalin Shekhar Mangar
>            Assignee: Shalin Shekhar Mangar
>             Fix For: 1.5
>
>         Attachments: SOLR-1644.patch
>
>
> Many components such as StatsComponent, FacetComponent etc keep flags and 
> helper objects in ResponseBuilder. Having to modify the ResponseBuilder for 
> such things is a very kludgy solution.
> Let us provide a clean way for components to keep arbitrary objects for the 
> duration of a (distributed) search request.

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