Uwe Schindler created LUCENE-6958:
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             Summary: Improve CustomAnalyzer to also allow to specify factory 
directly (for compile-time safety)
                 Key: LUCENE-6958
                 URL: https://issues.apache.org/jira/browse/LUCENE-6958
             Project: Lucene - Core
          Issue Type: Improvement
          Components: modules/analysis
    Affects Versions: 5.4
            Reporter: Uwe Schindler
            Assignee: Uwe Schindler
             Fix For: 5.5


Currently CustomAnalyzer only allows to specify the SPI names of factories. As 
the fluent builder pattern is mostly used inside Java code, it is better for 
type safety to optionally also specify the factory class directly (using 
compile-time safe patterns like 
{{.withTokenizer(WhitespaceTokenizerFactory.class)}}). With the string names, 
you get the error only at runtime. Of course this does not help with wrong, 
spelled parameter names, but it also has the side effect that you can click on 
the class name in your code to get javadocs with the parameter names.

This issue will add this functionality and update the docs/example.

Thanks to [~shaie] for suggesting this!



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