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From "Yonik Seeley (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (SOLR-5020) Add final() method to DelegatingCollector
Date Tue, 09 Jul 2013 17:25:50 GMT

     [ https://issues.apache.org/jira/browse/SOLR-5020?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Yonik Seeley updated SOLR-5020:
-------------------------------

    Fix Version/s:     (was: 4.4)
                   4.5
    
> Add final() method to DelegatingCollector
> -----------------------------------------
>
>                 Key: SOLR-5020
>                 URL: https://issues.apache.org/jira/browse/SOLR-5020
>             Project: Solr
>          Issue Type: New Feature
>          Components: search
>    Affects Versions: 5.0
>            Reporter: Joel Bernstein
>            Priority: Minor
>             Fix For: 5.0, 4.5
>
>         Attachments: SOLR-5020.patch
>
>
> This issue adds a final() method to the DelegatingCollector class so that it can be notified
when collection is complete. 
> The current collect() method assumes that the delegating collector will either forward
on the document or not with each call. The final() method will allow DelegatingCollectors
to have more sophisticated behavior.
> For example a Field Collapsing delegating collector could collapse the documents as the
collect() method is being called. Then when the final() method is called it could pass the
collapsed documents to the delegate collectors.
> This would allow grouping to be implemented within the PostFilter framework.

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