Package org.apache.lucene.search

Search over indices.

See: Description

Interface Summary

Interface	Description
FieldCache	Expert: Maintains caches of term values.
FieldCache.FloatParser	Interface to parse floats from document fields.
FieldCache.IntParser	Interface to parse ints from document fields.
ScoreDocComparator	Expert: Compares two ScoreDoc objects for sorting.
Searchable	The interface for search implementations.
SortComparatorSource	Expert: returns a comparator for sorting ScoreDocs.
Weight	Expert: Calculate query weights and build query scorers.

Class Summary

Class	Description
BooleanClause	A clause in a BooleanQuery.
BooleanClause.Occur	Specifies how terms may occur in matching documents.
BooleanQuery	A Query that matches documents matching boolean combinations of other queries, e.g.
CachingWrapperFilter	Wraps another filter's result and caches it.
ConstantScoreQuery	A query that wraps a filter and simply returns a constant score equal to the query boost for every document in the filter.
ConstantScoreRangeQuery	A range query that returns a constant score equal to it's boost for all documents in the range.
DateFilter	Deprecated Instead, use RangeFilter combined with DateTools.
DefaultSimilarity	Expert: Default scoring implementation.
DisjunctionMaxQuery	A query that generates the union of the documents produced by its subqueries, and that scores each document as the maximum score for that document produced by any subquery plus a tie breaking increment for any additional matching subqueries.
DisjunctionSumScorer	A Scorer for OR like queries, counterpart of Lucene's ConjunctionScorer.
Explanation	Expert: Describes the score computation for document and query.
FieldCache.StringIndex	Expert: Stores term text values and document ordering data.
FieldDoc	Expert: A ScoreDoc which also contains information about how to sort the referenced document.
FieldSortedHitQueue	Expert: A hit queue for sorting by hits by terms in more than one field.
Filter	Abstract base class providing a mechanism to restrict searches to a subset of an index.
FilteredQuery	A query that applies a filter to the results of another query.
FilteredTermEnum	Abstract class for enumerating a subset of all terms.
FuzzyQuery	Implements the fuzzy search query.
FuzzyTermEnum	Subclass of FilteredTermEnum for enumerating all terms that are similiar to the specified filter term.
Hit	Wrapper used by HitIterator to provide a lazily loaded hit from Hits.
HitCollector	Lower-level search API.
HitIterator	An iterator over Hits that provides lazy fetching of each document.
Hits	A ranked list of documents, used to hold search results.
IndexSearcher	Implements search over a single IndexReader.
MatchAllDocsQuery	A query that matches all documents.
MultiPhraseQuery	MultiPhraseQuery is a generalized version of PhraseQuery, with an added method MultiPhraseQuery.add(Term[]).
MultiSearcher	Implements search over a set of Searchables.
MultiTermQuery	A Query that matches documents containing a subset of terms provided by a FilteredTermEnum enumeration.
ParallelMultiSearcher	Implements parallel search over a set of Searchables.
PhrasePrefixQuery	Deprecated use MultiPhraseQuery instead
PhraseQuery	A Query that matches documents containing a particular sequence of terms.
PrefixQuery	A Query that matches documents containing terms with a specified prefix.
Query	The abstract base class for queries.
QueryFilter	Constrains search results to only match those which also match a provided query.
QueryTermVector
RangeFilter	A Filter that restricts search results to a range of values in a given field.
RangeQuery	A Query that matches documents within an exclusive range.
RemoteSearchable	A remote searchable implementation.
ReqExclScorer	A Scorer for queries with a required subscorer and an excluding (prohibited) subscorer.
ReqOptSumScorer	A Scorer for queries with a required part and an optional part.
ScoreDoc	Expert: Returned by low-level search implementations.
Scorer	Expert: Common scoring functionality for different types of queries.
Searcher	An abstract base class for search implementations.
Similarity	Expert: Scoring API.
SimilarityDelegator	Expert: Delegating scoring implementation.
Sort	Encapsulates sort criteria for returned hits.
SortComparator	Abstract base class for sorting hits returned by a Query.
SortField	Stores information about how to sort documents by terms in an individual field.
TermQuery	A Query that matches documents containing a term.
TopDocCollector	A HitCollector implementation that collects the top-scoring documents, returning them as a TopDocs.
TopDocs	Expert: Returned by low-level search implementations.
TopFieldDocCollector	A HitCollector implementation that collects the top-sorting documents, returning them as a TopFieldDocs.
TopFieldDocs	Expert: Returned by low-level sorted search implementations.
WildcardQuery	Implements the wildcard search query.
WildcardTermEnum	Subclass of FilteredTermEnum for enumerating all terms that match the specified wildcard filter term.

Exception Summary

Exception	Description
BooleanQuery.TooManyClauses	Thrown when an attempt is made to add more than BooleanQuery.getMaxClauseCount() clauses.

Package org.apache.lucene.search Description

Search over indices. Applications usually call Searcher.search(Query) or Searcher.search(Query,Filter).