Class PerFieldAnalyzerWrapper

This analyzer is used to facilitate scenarios where different fields Require different analysis techniques. Use the Map argument in PerFieldAnalyzerWrapper(Analyzer, IDictionary<String, Analyzer>) to add non-default analyzers for fields.

Example usage:

IDictionary<string, Analyzer> analyzerPerField = new Dictionary<string, Analyzer>();
analyzerPerField["firstname"] = new KeywordAnalyzer();
analyzerPerField["lastname"] = new KeywordAnalyzer();

PerFieldAnalyzerWrapper aWrapper =
  new PerFieldAnalyzerWrapper(new StandardAnalyzer(version), analyzerPerField);

In this example, StandardAnalyzer will be used for all fields except "firstname" and "lastname", for which KeywordAnalyzer will be used.

A PerFieldAnalyzerWrapper can be used like any other analyzer, for both indexing and query parsing.