Jason Gerlowski created SOLR-17262:
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Summary: Add SolrParams-style convenience methods to NamedList
Key: SOLR-17262
URL: https://issues.apache.org/jira/browse/SOLR-17262
Project: Solr
Issue Type: Improvement
Security Level: Public (Default Security Level. Issues are Public)
Affects Versions: main (10.0)
Reporter: Jason Gerlowski
Most NamedList<T> getters return values using the generic type 'T'. On the
surface this seems to make perfect sense, but it often isn't very helpful since
NamedList is frequently used to hold heterogeneous types, so in practice
NamedLists are almost always declared with 'T' == 'Object'.
As a result, the large majority of NamedList code has to either cast and/or
parse the value to its actual type after each list-access.
SolrParams gets around a similar problem by having a number of convenience
methods that return specific common types or throw a uniform error message.
Examples include: getLong, getFloat, getDouble, etc.
We should add similar methods to NamedList, and then start to use those
throughout the codebase in an effort to make arg-parsing code more readable and
uniform.
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