All Classes and Interfaces
Class
Description
Analyzes the input text and then suggests matches based on prefix matches to any tokens in the
indexed text.
Suggester that first analyzes the surface form, adds the analyzed form to a weighted FST, and
then does the same thing at lookup time.
A producer of
Bits per segment.Extension of the AnalyzingInfixSuggester which transforms the weight after search to take into
account the position of the searched term into the indexed text.
The different types of blender.
This wrapper buffers incoming elements.
Collects
BytesRef and then allows one to iterate over their sorted order.A suggestion generated by combining one or more original query terms
CompletionPostingsFormat for
org.apache.lucene.backward_codecs.lucene50.Lucene50PostingsFormat.CompletionPostingsFormat for
org.apache.lucene.backward_codecs.lucene84.Lucene84PostingsFormat.CompletionPostingsFormat for
org.apache.lucene.backward_codecs.lucene90.Lucene90PostingsFormat.Wraps an
Analyzer to provide additional completion-only tuning
(e.g.A
PostingsFormat which supports document suggestion based on indexed SuggestFields.An enum that allows to control if suggester FSTs are loaded into memory or read off-heap
Abstract
Query that match documents containing terms with a specified prefix filtered by
BitsProducer.Expert: Responsible for executing the query against an appropriate suggester and collecting the
results via a collector.
Holder for suggester and field-level info for a suggest field
Wrapped
Terms used by SuggestField and ContextSuggestField to access corresponding suggester and their attributesA
ConcatenateGraphFilter but we can set the payload and provide access to config options.Expert: the Weight for CompletionQuery, used to score and explain these queries.
A
CompletionQuery that matches documents specified by a wrapped CompletionQuery
supporting boosting and/or filtering by specified contexts.SuggestField which additionally takes in a set of contexts.A simple interface representing a Dictionary.
Simple automaton-based spellchecker.
Holds a spelling correction for internal usage inside
DirectSpellChecker.Dictionary with terms, weights, payload (optional) and contexts (optional) information taken from
stored/indexed fields in a Lucene index.
Dictionary with terms and optionally payload and optionally contexts information taken from
stored fields in a Lucene index.
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.Iterates over
BytesRefs in a file, closes the reader when the iterator is exhausted.Dictionary represented by a text file.
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).Finite state automata based implementation of "autocomplete" functionality.
A single completion for a given key.
Finite state automata based implementation of "autocomplete" functionality.
An adapter from
Lookup API to FSTCompletion.Holds a pair (automaton, fst) of states and accumulated output in the intersected machine.
A
CompletionQuery that match documents containing terms within an edit distance of the
specified prefix.Implements a fuzzy
AnalyzingSuggester.HighFrequencyDictionary: terms taken from the given field of a Lucene index, which appear in a
number of documents above a given threshold.
An
BytesRefSorter that keeps all the entries in memory.Interface for enumerating term,weight,payload triples for suggester consumption; currently only
AnalyzingSuggester, FuzzySuggester and AnalyzingInfixSuggester support
payloads.Wraps a BytesRefIterator as a suggester InputIterator, with all weights set to
1
and carries no payloadSimilarity measure for short strings such as person names.
Levenshtein edit distance class.
Simple Lookup interface for
CharSequence suggestions.A
PriorityQueue collecting a fixed size of high priority Lookup.LookupResultResult of a lookup.
Lucene Dictionary: terms taken from the given field of a Lucene index.
Damerau-Levenshtein (optimal string alignment) implemented in a consistent way as Lucene's
FuzzyTermsEnum with the transpositions option enabled.
N-Gram version of edit distance based on paper by Grzegorz Kondrak, "N-gram similarity and
distance".
NRTSuggester executes Top N search on a weighted FST specified by a
CompletionScorerDictionary represented by a text file.
A
CompletionQuery which takes an Analyzer to analyze the prefix of the query
term.A
CompletionQuery which takes a regular expression as the prefix of the query term.This wrapper buffers incoming elements and makes sure they are sorted based on given comparator.
Spell Checker class (Main class).
(initially inspired by the David Spencer code).
(initially inspired by the David Spencer code).
Interface for string distances.
Field that indexes a string value and a weight as a weighted completion against a named
suggester.
Adds document suggest capabilities to IndexSearcher.
Set of strategies for suggesting related terms
Like
StopFilter except it will not remove the last token if that token was not followed
by some token separator.Factory for
SuggestStopFilter.SuggestWord, used in suggestSimilar method in SpellChecker class.
Frequency first, then score.
Sorts SuggestWord instances
Score first, then frequency
The class creates a TST node.
ScoreDoc with an additional CharSequence keyCollector that collects completion and score, along with
document idTernary Search Trie implementation.
Suggest implementation based on a Ternary Search Tree
This wrapper buffers the incoming elements and makes sure they are in random order.
Suggester based on a weighted FST: it first traverses the prefix, then walks the n
shortest paths to retrieve top-ranked suggestions.
A spell checker whose sole function is to offer suggestions by combining multiple terms into one
word and/or breaking terms into multiple words.
Determines the order to list word break suggestions