Class DutchAnalyzer
Analyzer for Dutch language.
Supports an external list of stopwords (words that will not be indexed at all), an external list of exclusions (word that will not be stemmed, but indexed) and an external list of word-stem pairs that overrule the algorithm (dictionary stemming). A default set of stopwords is used unless an alternative list is specified, but the exclusion list is empty by default.
You must specify the required LuceneVersion compatibility when creating DutchAnalyzer:
- As of 3.6, DutchAnalyzer(LuceneVersion, CharArraySet) and DutchAnalyzer(LuceneVersion, CharArraySet, CharArraySet) also populate the default entries for the stem override dictionary
- As of 3.1, Snowball stemming is done with SnowballFilter, LowerCaseFilter is used prior to StopFilter, and Snowball stopwords are used by default.
- As of 2.9, StopFilter preserves position increments
NOTE: This class uses the same LuceneVersion dependent settings as StandardAnalyzer.
Inherited Members
Assembly: Lucene.Net.Analysis.Common.dll
Syntax
[Serializable]
public sealed class DutchAnalyzer : Analyzer, IDisposableConstructors
| Name | Description |
|---|---|
| DutchAnalyzer(LuceneVersion) | Builds an analyzer with the default stop words (DefaultStopSet) and a few default entries for the stem exclusion table. |
| DutchAnalyzer(LuceneVersion, CharArraySet) | |
| DutchAnalyzer(LuceneVersion, CharArraySet, CharArraySet) | |
| DutchAnalyzer(LuceneVersion, CharArraySet, CharArraySet, CharArrayMap<String>) |
Fields
| Name | Description |
|---|---|
| DEFAULT_STOPWORD_FILE | File containing default Dutch stopwords. |
Properties
| Name | Description |
|---|---|
| DefaultStopSet | Returns an unmodifiable instance of the default stop-words set. |
Methods
| Name | Description |
|---|---|
| CreateComponents(String, TextReader) | Returns a (possibly reused) TokenStream which tokenizes all the text in the provided System.IO.TextReader. |
