Class PerFieldAnalyzerWrapper

This analyzer is used to facilitate scenarios where different fields require different analysis techniques. Use AddAnalyzer(String, Analyzer) to add a non-default analyzer on a field name basis.

Example usage:

PerFieldAnalyzerWrapper aWrapper =
new PerFieldAnalyzerWrapper(new StandardAnalyzer());
aWrapper.addAnalyzer("firstname", new KeywordAnalyzer());
aWrapper.addAnalyzer("lastname", new KeywordAnalyzer());

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.

Inheritance
System.Object
Analyzer
PerFieldAnalyzerWrapper
Inherited Members
Namespace:
Assembly: Lucene.Net.NetCore.dll
Syntax
public class PerFieldAnalyzerWrapper : Analyzer

Constructors

Name Description
PerFieldAnalyzerWrapper(Analyzer)

Constructs with default analyzer.
PerFieldAnalyzerWrapper(Analyzer, IEnumerable<KeyValuePair<String, Analyzer>>)

Constructs with default analyzer and a map of analyzers to use for specific fields.

Methods

Name Description
AddAnalyzer(String, Analyzer)

Defines an analyzer to use for the specified field.
GetOffsetGap(IFieldable)

Return the offsetGap from the analyzer assigned to field

GetPositionIncrementGap(String)

Return the positionIncrementGap from the analyzer assigned to fieldName

ReusableTokenStream(String, IO.TextReader)
TokenStream(String, IO.TextReader)
ToString()