NamedList - Deprecating ctor. with heterogenous List and replacing with a
type-safe variant.
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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
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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