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https://issues.apache.org/jira/browse/SOLR-2842?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13133046#comment-13133046
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Mark Miller edited comment on SOLR-2842 at 10/21/11 8:47 PM:
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cool - I like where this is going.
                
      was (Author: [email protected]):
    cool - I like where this going.
                  
> Re-factor UpdateChain and UpdateProcessor interfaces
> ----------------------------------------------------
>
>                 Key: SOLR-2842
>                 URL: https://issues.apache.org/jira/browse/SOLR-2842
>             Project: Solr
>          Issue Type: Improvement
>          Components: update
>            Reporter: Jan Høydahl
>
> The UpdateChain's main task is to send SolrInputDocuments through a chain of 
> UpdateRequestProcessors in order to transform them in some way and then 
> (typically) indexing them.
> This generic "pipeline" concept would also be useful on the client side 
> (SolrJ), so that we could choose to do parts or all of the processing on the 
> client. The most prominent use case is extracting text (Tika) from large 
> binary documents, residing on local storage on the client(s). Streaming 
> hundreds of Mb over to Solr for processing is not efficcient. See SOLR-1526.
> We're already implementing Tika as an UpdateProcessor in SOLR-1763, and what 
> would be more natural than reusing this - and any other processor - on the 
> client side?
> However, for this to be possible, some interfaces need to change slightly..

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