Package org.elasticsearch.index.analysis

Interface TokenFilterFactory

All Known Subinterfaces:

NormalizingTokenFilterFactory

All Known Implementing Classes:

AbstractTokenFilterFactory, HunspellTokenFilterFactory, ShingleTokenFilterFactory, ShingleTokenFilterFactory.Factory, StopTokenFilterFactory

public interface TokenFilterFactory

Field Summary

Fields

Modifier and Type	Field	Description
static TokenFilterFactory	IDENTITY_FILTER	A TokenFilterFactory that does no filtering to its TokenStream

Method Summary

Modifier and Type	Method	Description
default boolean	breaksFastVectorHighlighter()	Does this analyzer mess up the OffsetAttributes in such as way as to break the FastVectorHighlighter? If this is true then the FastVectorHighlighter will attempt to work around the broken offsets.
TokenStream	create(TokenStream tokenStream)
default AnalysisMode	getAnalysisMode()	Get the AnalysisMode this filter is allowed to be used in.
default TokenFilterFactory	getChainAwareTokenFilterFactory(TokenizerFactory tokenizer, List<CharFilterFactory> charFilters, List<TokenFilterFactory> previousTokenFilters, Function<String,TokenFilterFactory> allFilters)	Rewrite the TokenFilterFactory to take into account the preceding analysis chain, or refer to other TokenFilterFactories
default TokenFilterFactory	getSynonymFilter()	Return a version of this TokenFilterFactory appropriate for synonym parsing Filters that should not be applied to synonyms (for example, those that produce multiple tokens) should throw an exception
String	name()
default TokenStream	normalize(TokenStream tokenStream)	Normalize a tokenStream for use in multi-term queries The default implementation is a no-op

Field Detail

IDENTITY_FILTER

static final TokenFilterFactory IDENTITY_FILTER

A TokenFilterFactory that does no filtering to its TokenStream

Method Detail

name

String name()

create

TokenStream create(TokenStream tokenStream)

normalize

default TokenStream normalize(TokenStream tokenStream)

Normalize a tokenStream for use in multi-term queries The default implementation is a no-op

breaksFastVectorHighlighter

default boolean breaksFastVectorHighlighter()

Does this analyzer mess up the OffsetAttributes in such as way as to break the FastVectorHighlighter? If this is true then the FastVectorHighlighter will attempt to work around the broken offsets.

getChainAwareTokenFilterFactory

default TokenFilterFactory getChainAwareTokenFilterFactory(TokenizerFactory tokenizer,
                                                           List<CharFilterFactory> charFilters,
                                                           List<TokenFilterFactory> previousTokenFilters,
                                                           Function<String,TokenFilterFactory> allFilters)

Rewrite the TokenFilterFactory to take into account the preceding analysis chain, or refer to other TokenFilterFactories

Parameters:

tokenizer - the TokenizerFactory for the preceding chain

charFilters - any CharFilterFactories for the preceding chain

previousTokenFilters - a list of TokenFilterFactories in the preceding chain

allFilters - access to previously defined TokenFilterFactories

getSynonymFilter

default TokenFilterFactory getSynonymFilter()

Return a version of this TokenFilterFactory appropriate for synonym parsing Filters that should not be applied to synonyms (for example, those that produce multiple tokens) should throw an exception

getAnalysisMode

default AnalysisMode getAnalysisMode()

Get the AnalysisMode this filter is allowed to be used in. The default is AnalysisMode.ALL. Instances need to override this method to define their own restrictions.