[jira] Updated: (SOLR-967) NamedList - Deprecating ctor. with heterogenous List and replacing with a type-safe variant.

["Kay Kay (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/SOLR-967?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Kay Kay updated SOLR-967:
-------------------------

    Fix Version/s: 1.4
         Priority: Minor  (was: Major)

> NamedList - Deprecating ctor. with heterogenous List and replacing with a type-safe variant. 
> ---------------------------------------------------------------------------------------------
>
>                 Key: SOLR-967
>                 URL: https://issues.apache.org/jira/browse/SOLR-967
>             Project: Solr
>          Issue Type: Improvement
>         Environment: Java 6, Tomcat 6
>            Reporter: Kay Kay
>            Priority: Minor
>             Fix For: 1.4
>
>   Original Estimate: 48h
>  Remaining Estimate: 48h
>
> NamedList (org/apache/solr/common/util/NamedList ) currently has a heterogenous List (even numbered indices are String-s ) and the odd-numbered indices are the specific types.  As per benchmarks ( see SOLR-912 ) - the implementation could be improved in favor of a Map.Entry<String, T> that beats in performance and ease of code maintenance. 
> As per the discussion in SOLR-912 , a separate issue in JIRA is created that temporarily deprecates the List ctor. in NamedList and replaces the same with a Map.Entry<String, T> [] arg. constructor . 
> This would be go in 1.4 to enable people to migrate their code for the new ctor. and move away from List<?> . 
> At a later version of Solr (may be v2) - the optimal implementation would be brought back in with the List <Map.Entry<String, ?> > for better type-safety and performance. 

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