Uses of Package
org.apache.lucene.search

Packages that use org.apache.lucene.search

Package	Description
org.apache.lucene.codecs	Codecs API: API for customization of the encoding and structure of the index.
org.apache.lucene.codecs.lucene90	Lucene 9.0 file format.
org.apache.lucene.codecs.lucene95	Lucene 9.5 file format.
org.apache.lucene.codecs.lucene99	Lucene 9.9 file format.
org.apache.lucene.codecs.perfield	Postings format that can delegate to different formats per-field.
org.apache.lucene.document	The logical representation of a Document for indexing and searching.
org.apache.lucene.index	Code to maintain and access indices.
org.apache.lucene.search	Code to search indices.
org.apache.lucene.search.comparators	Comparators, used to compare hits so as to determine their sort order when collecting the top results with TopFieldCollector.
org.apache.lucene.search.knn	Classes related to vector search: knn and vector fields.
org.apache.lucene.search.similarities	This package contains the various ranking models that can be used in Lucene.
org.apache.lucene.util	Some utility classes.
org.apache.lucene.util.automaton	Finite-state automaton for regular expressions.
org.apache.lucene.util.hnsw	Navigable Small-World graph, nominally Hierarchical but currently only has a single layer.
org.apache.lucene.util.quantization	Provides quantization methods for scaling vector values to smaller data types and possibly fewer dimensions

Classes in org.apache.lucene.search used by org.apache.lucene.codecs

Class	Description
KnnCollector	KnnCollector is a knn collector used for gathering kNN results and providing topDocs from the gathered neighbors

Classes in org.apache.lucene.search used by org.apache.lucene.codecs.lucene90

Class	Description
DocIdSetIterator	This abstract class defines methods to iterate over a set of non-decreasing doc ids.

Classes in org.apache.lucene.search used by org.apache.lucene.codecs.lucene95

Class	Description
DocIdSetIterator	This abstract class defines methods to iterate over a set of non-decreasing doc ids.

Classes in org.apache.lucene.search used by org.apache.lucene.codecs.lucene99

Class	Description
DocIdSetIterator	This abstract class defines methods to iterate over a set of non-decreasing doc ids.
KnnCollector	KnnCollector is a knn collector used for gathering kNN results and providing topDocs from the gathered neighbors
TaskExecutor	Executor wrapper responsible for the execution of concurrent tasks.

Classes in org.apache.lucene.search used by org.apache.lucene.codecs.perfield

Class	Description
KnnCollector	KnnCollector is a knn collector used for gathering kNN results and providing topDocs from the gathered neighbors

Classes in org.apache.lucene.search used by org.apache.lucene.document

Class	Description
DocIdSetIterator	This abstract class defines methods to iterate over a set of non-decreasing doc ids.
DoubleValuesSource	Base class for producing DoubleValues
IndexSearcher	Implements search over a single IndexReader.
Query	The abstract base class for queries.
QueryVisitor	Allows recursion through a query tree
ScoreMode	Different modes of search.
SortedNumericSelector.Type	Type of selection to perform.
SortedSetSelector.Type	Type of selection to perform.
SortField	Stores information about how to sort documents by terms in an individual field.
Weight	Expert: Calculate query weights and build query scorers.

Classes in org.apache.lucene.search used by org.apache.lucene.index

Class	Description
DocIdSet	A DocIdSet contains a set of doc ids.
DocIdSetIterator	This abstract class defines methods to iterate over a set of non-decreasing doc ids.
IndexSearcher	Implements search over a single IndexReader.
KnnCollector	KnnCollector is a knn collector used for gathering kNN results and providing topDocs from the gathered neighbors
Query	The abstract base class for queries.
ReferenceManager	Utility class to safely share instances of a certain type across multiple threads, while periodically refreshing them.
Sort	Encapsulates sort criteria for returned hits.
SortField	Stores information about how to sort documents by terms in an individual field.
TopDocs	Represents hits returned by IndexSearcher.search(Query,int).

Classes in org.apache.lucene.search used by org.apache.lucene.search

Class	Description
AbstractKnnCollector	AbstractKnnCollector is the default implementation for a knn collector used for gathering kNN results and providing topDocs from the gathered neighbors
AutomatonQuery	A Query that will match terms against a finite-state machine.
BlendedTermQuery	A Query that blends index statistics across multiple terms.
BlendedTermQuery.Builder	A Builder for BlendedTermQuery.
BlendedTermQuery.RewriteMethod	A BlendedTermQuery.RewriteMethod defines how queries for individual terms should be merged.
BooleanClause	A clause in a BooleanQuery.
BooleanClause.Occur	Specifies how clauses are to occur in matching documents.
BooleanQuery	A Query that matches documents matching boolean combinations of other queries, e.g.
BooleanQuery.Builder	A builder for boolean queries.
BoostAttribute	Add this Attribute to a TermsEnum returned by MultiTermQuery.getTermsEnum(Terms,AttributeSource) and update the boost on each returned term.
BulkScorer	This class is used to score a range of documents at once, and is returned by Weight.bulkScorer(org.apache.lucene.index.LeafReaderContext).
CachingCollector	Caches all docs, and optionally also scores, coming from a search, and is then able to replay them to another collector.
CheckedIntConsumer	Like IntConsumer, but may throw checked exceptions.
CollectionStatistics	Contains statistics for a collection (field).
Collector	Expert: Collectors are primarily meant to be used to gather raw results from a search, and implement sorting or custom result filtering, collation, etc.
CollectorManager	A manager of collectors.
DisiPriorityQueue	A priority queue of DocIdSetIterators that orders by current doc ID.
DisiWrapper	Wrapper used in DisiPriorityQueue.
DocIdSet	A DocIdSet contains a set of doc ids.
DocIdSetIterator	This abstract class defines methods to iterate over a set of non-decreasing doc ids.
DocIdStream	A stream of doc IDs.
DoubleValues	Per-segment, per-document double values, which can be calculated at search-time
DoubleValuesSource	Base class for producing DoubleValues
Explanation	Expert: Describes the score computation for document and query.
FieldComparator	Expert: a FieldComparator compares hits so as to determine their sort order when collecting the top results with TopFieldCollector.
FieldComparatorSource	Provides a FieldComparator for custom field sorting.
FieldDoc	Expert: A ScoreDoc which also contains information about how to sort the referenced document.
FieldExistsQuery	A Query that matches documents that contain either a KnnFloatVectorField, KnnByteVectorField or a field that indexes norms or doc values.
FieldValueHitQueue	Expert: A hit queue for sorting by hits by terms in more than one field.
FieldValueHitQueue.Entry	Extension of ScoreDoc to also store the FieldComparator slot.
FilterCollector	Collector delegator.
IndexSearcher	Implements search over a single IndexReader.
IndexSearcher.LeafSlice	A class holding a subset of the IndexSearchers leaf contexts to be executed within a single thread.
IndexSearcher.TooManyClauses	Thrown when an attempt is made to add more than IndexSearcher.TooManyClauses.getMaxClauseCount() clauses.
IndriAndQuery	A Query that matches documents matching combinations of subqueries.
IndriDisjunctionScorer	The Indri implemenation of a disjunction scorer which stores the subscorers for the child queries.
IndriQuery	A Basic abstract query that all IndriQueries can extend to implement toString, equals, getClauses, and iterator.
IndriScorer	The Indri parent scorer that stores the boost so that IndriScorers can use the boost outside of the term.
KnnCollector	KnnCollector is a knn collector used for gathering kNN results and providing topDocs from the gathered neighbors
KnnFloatVectorQuery	Uses KnnVectorsReader.search(String, float[], KnnCollector, Bits) to perform nearest neighbour search.
LeafCollector	Collector decouples the score from the collected doc: the score computation is skipped entirely if it's not needed.
LeafFieldComparator	Expert: comparator that gets instantiated on each leaf from a top-level FieldComparator instance.
LeafSimScorer	Similarity.SimScorer on a specific LeafReader.
LongValues	Per-segment, per-document long values, which can be calculated at search-time
LongValuesSource	Base class for producing LongValues
LRUQueryCache.CacheAndCount	Cache of doc ids with a count.
Matches	Reports the positions and optionally offsets of all matching terms in a query for a single document
MatchesIterator	An iterator over match positions (and optionally offsets) for a single document and field
MaxNonCompetitiveBoostAttribute	Add this Attribute to a fresh AttributeSource before calling MultiTermQuery.getTermsEnum(Terms,AttributeSource).
MaxScoreCache	Compute maximum scores based on Impacts and keep them in a cache in order not to run expensive similarity score computations multiple times on the same data.
MultiPhraseQuery	A generalized version of PhraseQuery, with the possibility of adding more than one term at the same position that are treated as a disjunction (OR).
MultiPhraseQuery.Builder	A builder for multi-phrase queries
MultiPhraseQuery.UnionPostingsEnum	Takes the logical union of multiple PostingsEnum iterators.
MultiTermQuery	An abstract Query that matches documents containing a subset of terms provided by a FilteredTermsEnum enumeration.
MultiTermQuery.RewriteMethod	Abstract class that defines how the query is rewritten.
NamedMatches	Utility class to help extract the set of sub queries that have matched from a larger query.
PhraseMatcher	Base class for exact and sloppy phrase matching
PhraseQuery	A Query that matches documents containing a particular sequence of terms.
PhraseQuery.Builder	A builder for phrase queries.
PhraseQuery.PostingsAndFreq	Term postings and position information for phrase matching
PointInSetQuery.Stream	Iterator of encoded point values.
Pruning	Controls LeafFieldComparator how to skip documents
Query	The abstract base class for queries.
QueryCache	A cache for queries.
QueryCachingPolicy	A policy defining which filters should be cached.
QueryVisitor	Allows recursion through a query tree
ReferenceManager	Utility class to safely share instances of a certain type across multiple threads, while periodically refreshing them.
ReferenceManager.RefreshListener	Use to receive notification when a refresh has finished.
Rescorer	Re-scores the topN results (TopDocs) from an original query.
Scorable	Allows access to the score of a Query
Scorable.ChildScorable	A child Scorer and its relationship to its parent.
ScoreDoc	Holds one hit in TopDocs.
ScoreMode	Different modes of search.
Scorer	Expert: Common scoring functionality for different types of queries.
ScorerSupplier	A supplier of Scorer.
ScoringRewrite	Base rewrite method that translates each term into a query, and keeps the scores as computed by the query.
SearcherFactory	Factory class used by SearcherManager to create new IndexSearchers.
SearcherLifetimeManager.Pruner	See SearcherLifetimeManager.prune(org.apache.lucene.search.SearcherLifetimeManager.Pruner).
SegmentCacheable	Interface defining whether or not an object can be cached against a LeafReader
Sort	Encapsulates sort criteria for returned hits.
SortedNumericSelector.Type	Type of selection to perform.
SortedSetSelector.Type	Type of selection to perform.
SortField	Stores information about how to sort documents by terms in an individual field.
SortField.Type	Specifies the type of the terms to be sorted, or special types such as CUSTOM
SynonymQuery	A query that treats multiple terms as synonyms.
SynonymQuery.Builder	A builder for SynonymQuery.
TaskExecutor	Executor wrapper responsible for the execution of concurrent tasks.
TermRangeQuery	A Query that matches documents within an range of terms.
TermStatistics	Contains statistics for a specific term
TimeLimitingCollector.TimerThread	Thread used to timeout search requests.
TopDocs	Represents hits returned by IndexSearcher.search(Query,int).
TopDocsCollector	A base class for all collectors that return a TopDocs output.
TopFieldCollector	A Collector that sorts by SortField using FieldComparators.
TopFieldDocs	Represents hits returned by IndexSearcher.search(Query,int,Sort).
TopScoreDocCollector	A Collector implementation that collects the top-scoring hits, returning them as a TopDocs.
TopTermsRewrite	Base rewrite method for collecting only the top terms via a priority queue.
TotalHitCountCollector	Just counts the total number of hits.
TotalHits	Description of the total number of hits of a query.
TotalHits.Relation	How the TotalHits.value should be interpreted.
TwoPhaseIterator	Returned by Scorer.twoPhaseIterator() to expose an approximation of a DocIdSetIterator.
Weight	Expert: Calculate query weights and build query scorers.

Classes in org.apache.lucene.search used by org.apache.lucene.search.comparators

Class	Description
DocIdSetIterator	This abstract class defines methods to iterate over a set of non-decreasing doc ids.
FieldComparator	Expert: a FieldComparator compares hits so as to determine their sort order when collecting the top results with TopFieldCollector.
LeafFieldComparator	Expert: comparator that gets instantiated on each leaf from a top-level FieldComparator instance.
Pruning	Controls LeafFieldComparator how to skip documents
Scorable	Allows access to the score of a Query

Classes in org.apache.lucene.search used by org.apache.lucene.search.knn

Class	Description
AbstractKnnCollector	AbstractKnnCollector is the default implementation for a knn collector used for gathering kNN results and providing topDocs from the gathered neighbors
IndexSearcher	Implements search over a single IndexReader.
KnnCollector	KnnCollector is a knn collector used for gathering kNN results and providing topDocs from the gathered neighbors
TopDocs	Represents hits returned by IndexSearcher.search(Query,int).
TopKnnCollector	TopKnnCollector is a specific KnnCollector.

Classes in org.apache.lucene.search used by org.apache.lucene.search.similarities

Class	Description
CollectionStatistics	Contains statistics for a collection (field).
Explanation	Expert: Describes the score computation for document and query.
TermStatistics	Contains statistics for a specific term

Classes in org.apache.lucene.search used by org.apache.lucene.util

Class	Description
BooleanClause.Occur	Specifies how clauses are to occur in matching documents.
BooleanQuery.Builder	A builder for boolean queries.
DocIdSet	A DocIdSet contains a set of doc ids.
DocIdSetIterator	This abstract class defines methods to iterate over a set of non-decreasing doc ids.
MultiPhraseQuery.Builder	A builder for multi-phrase queries
Query	The abstract base class for queries.

Classes in org.apache.lucene.search used by org.apache.lucene.util.automaton

Class	Description
Query	The abstract base class for queries.
QueryVisitor	Allows recursion through a query tree

Classes in org.apache.lucene.search used by org.apache.lucene.util.hnsw

Class	Description
DocIdSetIterator	This abstract class defines methods to iterate over a set of non-decreasing doc ids.
KnnCollector	KnnCollector is a knn collector used for gathering kNN results and providing topDocs from the gathered neighbors
TaskExecutor	Executor wrapper responsible for the execution of concurrent tasks.
TopDocs	Represents hits returned by IndexSearcher.search(Query,int).

Classes in org.apache.lucene.search used by org.apache.lucene.util.quantization

Class	Description
DocIdSetIterator	This abstract class defines methods to iterate over a set of non-decreasing doc ids.