wordlistloader is inefficient
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Key: LUCENE-2564
URL: https://issues.apache.org/jira/browse/LUCENE-2564
Project: Lucene - Java
Issue Type: Bug
Components: contrib/analyzers
Reporter: Robert Muir
Assignee: Robert Muir
Fix For: 3.1, 4.0
WordListLoader is basically used for loading up stopwords lists, stem
dictionaries, etc.
Unfortunately the api returns Set<String> and sometimes even HashSet<String> or
HashMap<String,String>
I think we should break it and return CharArraySets and CharArrayMaps (but
leave the return value as generic Set,Map).
If someone objects to breaking it in 3.1, then we can do this only in 4.0, but
i think it would be good to fix it both places.
The reason is that if someone does new FooAnalyzer() a lot (probably not
uncommon) i think its doing a bunch of useless copying.
I think we should slap @lucene.internal on this API too, since thats mostly how
its being used.
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