Class StopFilter

Constructs a filter which removes words from the input TokenStream that are named in the Set.

Construct a token stream filtering the given input. If stopWords is an instance of CharArraySet (true if makeStopSet() was used to construct the set) it will be directly used and ignoreCase will be ignored since CharArraySet directly controls case sensitivity.

If stopWords is not an instance of CharArraySet, a new CharArraySet will be constructed and ignoreCase will be used to specify the case sensitivity of that set.

If true, this StopFilter will preserve positions of the incoming tokens (ie, accumulate and set position increments of the removed stop tokens). Generally, true is best as it does not lose information (positions of the original tokens) during indexing.

When set, when a token is stopped (omitted), the position increment of the following token is incremented.

NOTE: be sure to also set Lucene.Net.QueryParsers.QueryParser.EnablePositionIncrements if you use QueryParser to create queries.

Returns version-dependent default for enablePositionIncrements. Analyzers that embed StopFilter use this method when creating the StopFilter. Prior to 2.9, this returns false. On 2.9 or later, it returns true.

Returns the next input Token whose term() is not a stop word.

Builds a Set from an array of stop words, appropriate for passing into the StopFilter constructor. This permits this stopWords construction to be cached once when an Analyzer is constructed.

Builds a Set from an array of stop words, appropriate for passing into the StopFilter constructor. This permits this stopWords construction to be cached once when an Analyzer is constructed.