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From "Christine Poerschke (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (SOLR-8621) solrconfig.xml: deprecate/replace <mergePolicy> with <mergePolicyFactory>
Date Mon, 08 Feb 2016 13:03:40 GMT

    [ https://issues.apache.org/jira/browse/SOLR-8621?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15136911#comment-15136911
] 

Christine Poerschke commented on SOLR-8621:
-------------------------------------------

Hello [~shaie] - thanks for your comments. I'm just catching up on things here.

bq. ... I actually prefer that we not extend the usage of {{NamedList}} :-) . Really what
we need is a {{Map<String,Object>}} ...

Sure, we can switch back to Map. Shall I just revert the particular commit or do we perhaps
want to do away with {{MergePolicyFactoryArgs}} at this point?

bq. ... have wrapped.key optional and default to 'delegate' ...

Yes, at first glance defaulting to 'delegate' sounds convenient but on second thoughts like
you say {{wrapper.key}} not specified corresponding to default wrapped MP is clearer and more
user friendly.


> solrconfig.xml: deprecate/replace <mergePolicy> with <mergePolicyFactory>
> -------------------------------------------------------------------------
>
>                 Key: SOLR-8621
>                 URL: https://issues.apache.org/jira/browse/SOLR-8621
>             Project: Solr
>          Issue Type: Task
>            Reporter: Christine Poerschke
>            Assignee: Christine Poerschke
>
> *<mergePolicyFactory> end-user benefits:*
> * Lucene's UpgradeIndexMergePolicy can be configured in Solr
> * (with SOLR-5730) Lucene's SortingMergePolicy can be configured in Solr
> * customisability: arbitrary merge policies including wrapping/nested merge policies
can be created and configured
> *(proposed) roadmap:*
> * solr 5.5 introduces <mergePolicyFactory> support
> * solr 5.5(\?) deprecates (but maintains) <mergePolicy> support
> * solr 6.0(\?) removes <mergePolicy> support 
> +work-in-progress git branch:+ [master-solr-8621|https://github.com/apache/lucene-solr/tree/master-solr-8621]



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