All Classes

Class	Description
AnalyzingInfixSuggester	Analyzes the input text and then suggests matches based on prefix matches to any tokens in the indexed text.
AnalyzingSuggester	Suggester that first analyzes the surface form, adds the analyzed form to a weighted FST, and then does the same thing at lookup time.
BitsProducer	A producer of Bits per segment.
BlendedInfixSuggester	Extension of the AnalyzingInfixSuggester which transforms the weight after search to take into account the position of the searched term into the indexed text.
BlendedInfixSuggester.BlenderType	The different types of blender.
BufferedInputIterator	This wrapper buffers incoming elements.
BytesRefSorter	Collects BytesRef and then allows one to iterate over their sorted order.
CombineSuggestion	A suggestion generated by combining one or more original query terms
Completion50PostingsFormat	CompletionPostingsFormat for org.apache.lucene.backward_codecs.lucene50.Lucene50PostingsFormat.
Completion84PostingsFormat	CompletionPostingsFormat for org.apache.lucene.backward_codecs.lucene84.Lucene84PostingsFormat.
Completion90PostingsFormat	CompletionPostingsFormat for org.apache.lucene.backward_codecs.lucene90.Lucene90PostingsFormat.
Completion912PostingsFormat	CompletionPostingsFormat for Lucene912PostingsFormat
Completion99PostingsFormat	CompletionPostingsFormat for org.apache.lucene.backward_codecs.lucene99.Lucene99PostingsFormat.
CompletionAnalyzer	Wraps an Analyzer to provide additional completion-only tuning (e.g.
CompletionPostingsFormat	A PostingsFormat which supports document suggestion based on indexed SuggestFields.
CompletionPostingsFormat.FSTLoadMode	An enum that allows to control if suggester FSTs are loaded into memory or read off-heap
CompletionQuery	Abstract Query that match documents containing terms with a specified prefix filtered by BitsProducer.
CompletionScorer	Expert: Responsible for executing the query against an appropriate suggester and collecting the results via a collector.
CompletionsTermsReader	Holder for suggester and field-level info for a suggest field
CompletionTerms	Wrapped Terms used by SuggestField and ContextSuggestField to access corresponding suggester and their attributes
CompletionTokenStream	A ConcatenateGraphFilter but we can set the payload and provide access to config options.
CompletionWeight	Expert: the Weight for CompletionQuery, used to score and explain these queries.
ContextQuery	A CompletionQuery that matches documents specified by a wrapped CompletionQuery supporting boosting and/or filtering by specified contexts.
ContextSuggestField	SuggestField which additionally takes in a set of contexts.
Dictionary	A simple interface representing a Dictionary.
DirectSpellChecker	Simple automaton-based spellchecker.
DirectSpellChecker.ScoreTerm	Holds a spelling correction for internal usage inside DirectSpellChecker.
DocumentDictionary	Dictionary with terms, weights, payload (optional) and contexts (optional) information taken from stored/indexed fields in a Lucene index.
DocumentValueSourceDictionary	Dictionary with terms and optionally payload and optionally contexts information taken from stored fields in a Lucene index.
ExternalRefSorter	An implementation of a BytesRefSorter that allows appending BytesRefs to an OfflineSorter and returns a Closeable ExternalRefSorter.ByteSequenceIterator that iterates over sequences stored on disk.
ExternalRefSorter.ByteSequenceIterator	Iterates over BytesRefs in a file, closes the reader when the iterator is exhausted.
FileDictionary	Dictionary represented by a text file.
FreeTextSuggester	Builds an ngram model from the text sent to FreeTextSuggester.build(org.apache.lucene.search.suggest.InputIterator) and predicts based on the last grams-1 tokens in the request sent to FreeTextSuggester.lookup(java.lang.CharSequence, boolean, int).
FSTCompletion	Finite state automata based implementation of "autocomplete" functionality.
FSTCompletion.Completion	A single completion for a given key.
FSTCompletionBuilder	Finite state automata based implementation of "autocomplete" functionality.
FSTCompletionLookup	An adapter from Lookup API to FSTCompletion.
FSTUtil	Exposes a utility method to enumerate all paths intersecting an Automaton with an FST.
FSTUtil.Path<T>	Holds a pair (automaton, fst) of states and accumulated output in the intersected machine.
FuzzyCompletionQuery	A CompletionQuery that match documents containing terms within an edit distance of the specified prefix.
FuzzySuggester	Implements a fuzzy AnalyzingSuggester.
HighFrequencyDictionary	HighFrequencyDictionary: terms taken from the given field of a Lucene index, which appear in a number of documents above a given threshold.
InMemorySorter	An BytesRefSorter that keeps all the entries in memory.
InputIterator	Interface for enumerating term,weight,payload triples for suggester consumption; currently only AnalyzingSuggester, FuzzySuggester and AnalyzingInfixSuggester support payloads.
InputIterator.InputIteratorWrapper	Wraps a BytesRefIterator as a suggester InputIterator, with all weights set to 1 and carries no payload
JaroWinklerDistance	Similarity measure for short strings such as person names.
LevenshteinDistance	Levenshtein edit distance class.
Lookup	Simple Lookup interface for CharSequence suggestions.
Lookup.LookupPriorityQueue	A PriorityQueue collecting a fixed size of high priority Lookup.LookupResult
Lookup.LookupResult	Result of a lookup.
LuceneDictionary	Lucene Dictionary: terms taken from the given field of a Lucene index.
LuceneLevenshteinDistance	Damerau-Levenshtein (optimal string alignment) implemented in a consistent way as Lucene's FuzzyTermsEnum with the transpositions option enabled.
NGramDistance	N-Gram version of edit distance based on paper by Grzegorz Kondrak, "N-gram similarity and distance".
NRTSuggester	NRTSuggester executes Top N search on a weighted FST specified by a CompletionScorer
PlainTextDictionary	Dictionary represented by a text file.
PrefixCompletionQuery	A CompletionQuery which takes an Analyzer to analyze the prefix of the query term.
RegexCompletionQuery	A CompletionQuery which takes a regular expression as the prefix of the query term.
SortedInputIterator	This wrapper buffers incoming elements and makes sure they are sorted based on given comparator.
SpellChecker	Spell Checker class (Main class). (initially inspired by the David Spencer code).
StringDistance	Interface for string distances.
SuggestField	Field that indexes a string value and a weight as a weighted completion against a named suggester.
SuggestIndexSearcher	Adds document suggest capabilities to IndexSearcher.
SuggestMode	Set of strategies for suggesting related terms
SuggestStopFilter	Like StopFilter except it will not remove the last token if that token was not followed by some token separator.
SuggestStopFilterFactory	Factory for SuggestStopFilter.
SuggestWord	SuggestWord, used in suggestSimilar method in SpellChecker class.
SuggestWordFrequencyComparator	Frequency first, then score.
SuggestWordQueue	Sorts SuggestWord instances
SuggestWordScoreComparator	Score first, then frequency
TernaryTreeNode	The class creates a TST node.
TopSuggestDocs	TopDocs wrapper with an additional CharSequence key per ScoreDoc
TopSuggestDocs.SuggestScoreDoc	ScoreDoc with an additional CharSequence key
TopSuggestDocsCollector	Collector that collects completion and score, along with document id
TSTAutocomplete	Ternary Search Trie implementation.
TSTLookup	Suggest implementation based on a Ternary Search Tree
UnsortedInputIterator	This wrapper buffers the incoming elements and makes sure they are in random order.
WFSTCompletionLookup	Suggester based on a weighted FST: it first traverses the prefix, then walks the n shortest paths to retrieve top-ranked suggestions.
WordBreakSpellChecker	A spell checker whose sole function is to offer suggestions by combining multiple terms into one word and/or breaking terms into multiple words.
WordBreakSpellChecker.BreakSuggestionSortMethod	Determines the order to list word break suggestions