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https://issues.apache.org/jira/browse/SOLR-10703?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16041574#comment-16041574
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ASF GitHub Bot commented on SOLR-10703:
---------------------------------------

Github user m-khl commented on the issue:

    https://github.com/apache/lucene-solr/pull/202
  
    Here is the overall note: Transformers has already setContext, thus they 
can already initialize. Finish logic can be implemented with 
SolrRequestInfo.addCloseHook(Closeable)   


> Add prepare() and finish() into DocTransformer 
> -----------------------------------------------
>
>                 Key: SOLR-10703
>                 URL: https://issues.apache.org/jira/browse/SOLR-10703
>             Project: Solr
>          Issue Type: Improvement
>      Security Level: Public(Default Security Level. Issues are Public) 
>            Reporter: Diego Ceccarelli
>            Priority: Minor
>             Fix For: master (7.0)
>
>
> This patch adds a {{prepare}} and a {{finish}} method to the interface of 
> {{DocTransformer}} allowing a developer to perform actions before/after a doc 
> transformer is applied to a result set. My use case was to benchmark the 
> performance of a transformer, since transformer time is not part of 
> {{QTime}}. 



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