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https://issues.apache.org/jira/browse/SOLR-1033?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12675969#action_12675969
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Fergus McMenemie commented on SOLR-1033:
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Your comment about modifying the system "to have the current entities rows be
available always to all transformers" is good and will produce the fastest most
efficient code.
But I need to sure we are not using the term "template" twice in different
ways. You say "you are constructing the regex replacements themselves with
templates" by which you mean using the ${XXX} syntax and not the output from a
templatetransformer?
Also, is your patch a replacement for mine?
> DIH transformers cannot reuse output from previous transformations
> ------------------------------------------------------------------
>
> Key: SOLR-1033
> URL: https://issues.apache.org/jira/browse/SOLR-1033
> Project: Solr
> Issue Type: Improvement
> Components: contrib - DataImportHandler
> Affects Versions: 1.4
> Environment: All operating systems and software platforms
> Reporter: Fergus McMenemie
> Fix For: 1.4
>
> Attachments: SOLR-1033.patch, SOLR-1033.patch, SOLR-1033.patch
>
> Original Estimate: 24h
> Remaining Estimate: 24h
>
> It can be very useful to reuse the output from a DIH template in other
> templates and or regex transformers. Currently this cannot be done. The
> resolver is initialized at the start of the transformer run with what ever
> values exist for a column name at that instant. As the transformer executes
> it may define new values for column names. My change is intended to update
> the hash used by the resolver after each successful transformation.
> This only applies to the template and regex transformers.
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