Uses of Class
org.apache.lucene.index.IndexReader

Packages that use IndexReader

org.apache.lucene.index	Code to maintain and access indices.
org.apache.lucene.search	Code to search indices.
org.apache.lucene.search.function	Programmatic control over documents scores.
org.apache.lucene.search.payloads	The payloads package provides Query mechanisms for finding and using payloads.
org.apache.lucene.search.spans	The calculus of spans.
org.apache.lucene.util	Some utility classes.

Uses of IndexReader in org.apache.lucene.index

Subclasses of IndexReader in org.apache.lucene.index

class	FilterIndexReader A FilterIndexReader contains another IndexReader, which it uses as its basic source of data, possibly transforming the data along the way or providing additional functionality.
class	MultiReader An IndexReader which reads multiple indexes, appending their content.
class	ParallelReader An IndexReader which reads multiple, parallel indexes.
class	SegmentReader

Fields in org.apache.lucene.index declared as IndexReader

protected IndexReader	FilterIndexReader.in
protected IndexReader[]	MultiReader.subReaders

Methods in org.apache.lucene.index that return IndexReader

IndexReader	SegmentReader.clone(boolean openReadOnly)
IndexReader	IndexReader.clone(boolean openReadOnly) Clones the IndexReader and optionally changes readOnly.
protected IndexReader	ParallelReader.doReopen(boolean doClone)
protected IndexReader	MultiReader.doReopen(boolean doClone) If clone is true then we clone each of the subreaders
IndexReader	IndexWriter.getReader() Deprecated. Please use open(IndexWriter,boolean) instead.
IndexReader	IndexWriter.getReader(int termInfosIndexDivisor) Deprecated. Please use open(IndexWriter,boolean) instead. Furthermore, this method cannot guarantee the reader (and its sub-readers) will be opened with the termInfosIndexDivisor setting because some of them may have already been opened according to IndexWriterConfig.setReaderTermsIndexDivisor(int). You should set the requested termInfosIndexDivisor through IndexWriterConfig.setReaderTermsIndexDivisor(int) and use IndexWriter.getReader().
IndexReader[]	FilterIndexReader.getSequentialSubReaders()
IndexReader[]	MultiReader.getSequentialSubReaders()
IndexReader[]	IndexReader.getSequentialSubReaders() Expert: returns the sequential sub readers that this reader is logically composed of.
static IndexReader	IndexReader.open(Directory directory) Returns a IndexReader reading the index in the given Directory, with readOnly=true.
static IndexReader	IndexReader.open(Directory directory, boolean readOnly) Returns an IndexReader reading the index in the given Directory.
static IndexReader	IndexReader.open(Directory directory, IndexDeletionPolicy deletionPolicy, boolean readOnly) Expert: returns an IndexReader reading the index in the given Directory, with a custom IndexDeletionPolicy.
static IndexReader	IndexReader.open(Directory directory, IndexDeletionPolicy deletionPolicy, boolean readOnly, int termInfosIndexDivisor) Expert: returns an IndexReader reading the index in the given Directory, with a custom IndexDeletionPolicy.
static IndexReader	IndexReader.open(IndexCommit commit, boolean readOnly) Expert: returns an IndexReader reading the index in the given IndexCommit.
static IndexReader	IndexReader.open(IndexCommit commit, IndexDeletionPolicy deletionPolicy, boolean readOnly) Expert: returns an IndexReader reading the index in the given Directory, using a specific commit and with a custom IndexDeletionPolicy.
static IndexReader	IndexReader.open(IndexCommit commit, IndexDeletionPolicy deletionPolicy, boolean readOnly, int termInfosIndexDivisor) Expert: returns an IndexReader reading the index in the given Directory, using a specific commit and with a custom IndexDeletionPolicy.
static IndexReader	IndexReader.open(IndexWriter writer, boolean applyAllDeletes) Open a near real time IndexReader from the IndexWriter.
IndexReader	SegmentReader.reopen()
IndexReader	ParallelReader.reopen() Tries to reopen the subreaders.
IndexReader	MultiReader.reopen() Tries to reopen the subreaders.
IndexReader	IndexReader.reopen() Refreshes an IndexReader if the index has changed since this instance was (re)opened.
IndexReader	SegmentReader.reopen(boolean openReadOnly)
IndexReader	IndexReader.reopen(boolean openReadOnly) Just like reopen(), except you can change the readOnly of the original reader.
IndexReader	IndexReader.reopen(IndexCommit commit) Expert: reopen this reader on a specific commit point.
IndexReader	IndexReader.reopen(IndexWriter writer, boolean applyAllDeletes) Expert: returns a readonly reader, covering all committed as well as un-committed changes to the index.

Methods in org.apache.lucene.index with parameters of type IndexReader

void	ParallelReader.add(IndexReader reader) Add an IndexReader.
void	ParallelReader.add(IndexReader reader, boolean ignoreStoredFields) Add an IndexReader whose stored fields will not be returned.
void	IndexWriter.addIndexes(IndexReader... readers) Merges the provided indexes into this index.
void	IndexReader.ReaderFinishedListener.finished(IndexReader reader)
abstract void	IndexWriter.IndexReaderWarmer.warm(IndexReader reader)

Constructors in org.apache.lucene.index with parameters of type IndexReader

FilterIndexReader(IndexReader in)
Construct a FilterIndexReader based on the specified base reader.

MultipleTermPositions(IndexReader indexReader, Term[] terms)
Creates a new MultipleTermPositions instance.

MultiReader(IndexReader... subReaders)
Construct a MultiReader aggregating the named set of (sub)readers.

MultiReader(IndexReader[] subReaders, boolean closeSubReaders)
Construct a MultiReader aggregating the named set of (sub)readers.

Uses of IndexReader in org.apache.lucene.search

Fields in org.apache.lucene.search declared as IndexReader

protected IndexReader[]

IndexSearcher.subReaders

Methods in org.apache.lucene.search that return IndexReader

IndexReader	IndexSearcher.getIndexReader() Return the IndexReader this searches.
IndexReader[]	IndexSearcher.getSubReaders() Returns the atomic subReaders used by this searcher.

Methods in org.apache.lucene.search with parameters of type IndexReader

SpanFilterResult	CachingSpanFilter.bitSpans(IndexReader reader)
SpanFilterResult	SpanQueryFilter.bitSpans(IndexReader reader)
abstract SpanFilterResult	SpanFilter.bitSpans(IndexReader reader) Returns a SpanFilterResult with true for documents which should be permitted in search results, and false for those that should not and Spans for where the true docs match.
protected DocIdSet	CachingWrapperFilter.docIdSetToCache(DocIdSet docIdSet, IndexReader reader) Provide the DocIdSet to be cached, using the DocIdSet provided by the wrapped Filter.
Explanation	ConstantScoreQuery.ConstantWeight.explain(IndexReader reader, int doc)
Explanation	DisjunctionMaxQuery.DisjunctionMaxWeight.explain(IndexReader reader, int doc) Explain the score we computed for doc
Explanation	BooleanQuery.BooleanWeight.explain(IndexReader reader, int doc)
abstract Explanation	Weight.explain(IndexReader reader, int doc) An explanation of the score computation for the named document.
protected void	IndexSearcher.gatherSubReaders(List<IndexReader> allSubReaders, IndexReader r)
byte[]	FieldCache.getBytes(IndexReader reader, String field) Checks the internal cache for an appropriate entry, and if none is found, reads the terms in field as a single byte and returns an array of size reader.maxDoc() of the value each document has in the given field.
byte[]	FieldCache.getBytes(IndexReader reader, String field, FieldCache.ByteParser parser) Checks the internal cache for an appropriate entry, and if none is found, reads the terms in field as bytes and returns an array of size reader.maxDoc() of the value each document has in the given field.
DocIdSet	MultiTermQueryWrapperFilter.getDocIdSet(IndexReader reader) Returns a DocIdSet with documents that should be permitted in search results.
DocIdSet	CachingSpanFilter.getDocIdSet(IndexReader reader)
abstract DocIdSet	Filter.getDocIdSet(IndexReader reader) Creates a DocIdSet enumerating the documents that should be permitted in search results.
abstract DocIdSet	FieldCacheRangeFilter.getDocIdSet(IndexReader reader) This method is implemented for each data type
DocIdSet	CachingWrapperFilter.getDocIdSet(IndexReader reader)
DocIdSet	FieldCacheTermsFilter.getDocIdSet(IndexReader reader)
DocIdSet	SpanQueryFilter.getDocIdSet(IndexReader reader)
DocIdSet	QueryWrapperFilter.getDocIdSet(IndexReader reader)
double[]	FieldCache.getDoubles(IndexReader reader, String field) Checks the internal cache for an appropriate entry, and if none is found, reads the terms in field as integers and returns an array of size reader.maxDoc() of the value each document has in the given field.
double[]	FieldCache.getDoubles(IndexReader reader, String field, FieldCache.DoubleParser parser) Checks the internal cache for an appropriate entry, and if none is found, reads the terms in field as doubles and returns an array of size reader.maxDoc() of the value each document has in the given field.
protected FilteredTermEnum	TermRangeQuery.getEnum(IndexReader reader)
protected abstract FilteredTermEnum	MultiTermQuery.getEnum(IndexReader reader) Construct the enumeration to be used, expanding the pattern term.
protected FilteredTermEnum	PrefixQuery.getEnum(IndexReader reader)
protected FilteredTermEnum	WildcardQuery.getEnum(IndexReader reader)
protected FilteredTermEnum	FuzzyQuery.getEnum(IndexReader reader)
protected FilteredTermEnum	NumericRangeQuery.getEnum(IndexReader reader)
float[]	FieldCache.getFloats(IndexReader reader, String field) Checks the internal cache for an appropriate entry, and if none is found, reads the terms in field as floats and returns an array of size reader.maxDoc() of the value each document has in the given field.
float[]	FieldCache.getFloats(IndexReader reader, String field, FieldCache.FloatParser parser) Checks the internal cache for an appropriate entry, and if none is found, reads the terms in field as floats and returns an array of size reader.maxDoc() of the value each document has in the given field.
int[]	FieldCache.getInts(IndexReader reader, String field) Checks the internal cache for an appropriate entry, and if none is found, reads the terms in field as integers and returns an array of size reader.maxDoc() of the value each document has in the given field.
int[]	FieldCache.getInts(IndexReader reader, String field, FieldCache.IntParser parser) Checks the internal cache for an appropriate entry, and if none is found, reads the terms in field as integers and returns an array of size reader.maxDoc() of the value each document has in the given field.
long[]	FieldCache.getLongs(IndexReader reader, String field) Checks the internal cache for an appropriate entry, and if none is found, reads the terms in field as longs and returns an array of size reader.maxDoc() of the value each document has in the given field.
long[]	FieldCache.getLongs(IndexReader reader, String field, FieldCache.LongParser parser) Checks the internal cache for an appropriate entry, and if none is found, reads the terms in field as longs and returns an array of size reader.maxDoc() of the value each document has in the given field.
short[]	FieldCache.getShorts(IndexReader reader, String field) Checks the internal cache for an appropriate entry, and if none is found, reads the terms in field as shorts and returns an array of size reader.maxDoc() of the value each document has in the given field.
short[]	FieldCache.getShorts(IndexReader reader, String field, FieldCache.ShortParser parser) Checks the internal cache for an appropriate entry, and if none is found, reads the terms in field as shorts and returns an array of size reader.maxDoc() of the value each document has in the given field.
FieldCache.StringIndex	FieldCache.getStringIndex(IndexReader reader, String field) Checks the internal cache for an appropriate entry, and if none is found reads the term values in field and returns an array of them in natural order, along with an array telling which element in the term array each document uses.
String[]	FieldCache.getStrings(IndexReader reader, String field) Checks the internal cache for an appropriate entry, and if none is found, reads the term values in field and returns an array of size reader.maxDoc() containing the value each document has in the given field.
void	FieldCache.purge(IndexReader r) Expert: drops all cache entries associated with this reader.
Query	ConstantScoreQuery.rewrite(IndexReader reader)
Query	FilteredQuery.rewrite(IndexReader reader) Rewrites the wrapped query.
Query	MultiTermQuery.rewrite(IndexReader reader)
Query	DisjunctionMaxQuery.rewrite(IndexReader reader) Optimize our representation and our subqueries representations
Query	WildcardQuery.rewrite(IndexReader reader)
Query	BooleanQuery.rewrite(IndexReader reader)
Query	PhraseQuery.rewrite(IndexReader reader)
Query	Query.rewrite(IndexReader reader) Expert: called to re-write queries into primitive queries.
Query	MultiPhraseQuery.rewrite(IndexReader reader)
Q	TopTermsRewrite.rewrite(IndexReader reader, MultiTermQuery query)
abstract Query	MultiTermQuery.RewriteMethod.rewrite(IndexReader reader, MultiTermQuery query)
Q	ScoringRewrite.rewrite(IndexReader reader, MultiTermQuery query)
Scorer	ConstantScoreQuery.ConstantWeight.scorer(IndexReader reader, boolean scoreDocsInOrder, boolean topScorer)
Scorer	DisjunctionMaxQuery.DisjunctionMaxWeight.scorer(IndexReader reader, boolean scoreDocsInOrder, boolean topScorer) Create the scorer used to score our associated DisjunctionMaxQuery
Scorer	BooleanQuery.BooleanWeight.scorer(IndexReader reader, boolean scoreDocsInOrder, boolean topScorer)
abstract Scorer	Weight.scorer(IndexReader reader, boolean scoreDocsInOrder, boolean topScorer) Returns a Scorer which scores documents in/out-of order according to scoreDocsInOrder.
void	MultiCollector.setNextReader(IndexReader reader, int o)
void	TopScoreDocCollector.setNextReader(IndexReader reader, int base)
abstract void	Collector.setNextReader(IndexReader reader, int docBase) Called before collecting from each IndexReader.
void	TimeLimitingCollector.setNextReader(IndexReader reader, int base)
void	PositiveScoresOnlyCollector.setNextReader(IndexReader reader, int docBase)
void	CachingCollector.setNextReader(IndexReader reader, int docBase)
void	TotalHitCountCollector.setNextReader(IndexReader reader, int docBase)
abstract void	FieldComparator.setNextReader(IndexReader reader, int docBase) Set a new Reader.
void	FieldComparator.ByteComparator.setNextReader(IndexReader reader, int docBase)
void	FieldComparator.DocComparator.setNextReader(IndexReader reader, int docBase)
void	FieldComparator.DoubleComparator.setNextReader(IndexReader reader, int docBase)
void	FieldComparator.FloatComparator.setNextReader(IndexReader reader, int docBase)
void	FieldComparator.IntComparator.setNextReader(IndexReader reader, int docBase)
void	FieldComparator.LongComparator.setNextReader(IndexReader reader, int docBase)
void	FieldComparator.RelevanceComparator.setNextReader(IndexReader reader, int docBase)
void	FieldComparator.ShortComparator.setNextReader(IndexReader reader, int docBase)
void	FieldComparator.StringComparatorLocale.setNextReader(IndexReader reader, int docBase)
void	FieldComparator.StringOrdValComparator.setNextReader(IndexReader reader, int docBase)
void	FieldComparator.StringValComparator.setNextReader(IndexReader reader, int docBase)

Method parameters in org.apache.lucene.search with type arguments of type IndexReader

protected void

IndexSearcher.gatherSubReaders(List<IndexReader> allSubReaders, IndexReader r)

Constructors in org.apache.lucene.search with parameters of type IndexReader

FuzzyTermEnum(IndexReader reader, Term term)
Creates a FuzzyTermEnum with an empty prefix and a minSimilarity of 0.5f.

FuzzyTermEnum(IndexReader reader, Term term, float minSimilarity)
Creates a FuzzyTermEnum with an empty prefix.

FuzzyTermEnum(IndexReader reader, Term term, float minSimilarity, int prefixLength)
Constructor for enumeration of all terms from specified reader which share a prefix of length prefixLength with term and which have a fuzzy similarity > minSimilarity.

IndexSearcher(IndexReader r)
Creates a searcher searching the provided index.

IndexSearcher(IndexReader r, ExecutorService executor)
Runs searches for each segment separately, using the provided ExecutorService.

IndexSearcher(IndexReader reader, IndexReader[] subReaders, int[] docStarts)
Expert: directly specify the reader, subReaders and their docID starts.

IndexSearcher(IndexReader reader, IndexReader[] subReaders, int[] docStarts)
Expert: directly specify the reader, subReaders and their docID starts.

IndexSearcher(IndexReader reader, IndexReader[] subReaders, int[] docStarts, ExecutorService executor)
Expert: directly specify the reader, subReaders and their docID starts, and an ExecutorService.

IndexSearcher(IndexReader reader, IndexReader[] subReaders, int[] docStarts, ExecutorService executor)
Expert: directly specify the reader, subReaders and their docID starts, and an ExecutorService.

PrefixTermEnum(IndexReader reader, Term prefix)

SingleTermEnum(IndexReader reader, Term singleTerm)
Creates a new SingleTermEnum.

TermRangeTermEnum(IndexReader reader, String field, String lowerTermText, String upperTermText, boolean includeLower, boolean includeUpper, Collator collator)
Enumerates all terms greater/equal than lowerTerm but less/equal than upperTerm.

WildcardTermEnum(IndexReader reader, Term term)
Creates a new WildcardTermEnum.

Uses of IndexReader in org.apache.lucene.search.function

Fields in org.apache.lucene.search.function declared as IndexReader

protected IndexReader

CustomScoreProvider.reader

Methods in org.apache.lucene.search.function with parameters of type IndexReader

DocValues	FloatFieldSource.getCachedFieldValues(FieldCache cache, String field, IndexReader reader)
DocValues	ShortFieldSource.getCachedFieldValues(FieldCache cache, String field, IndexReader reader)
DocValues	ByteFieldSource.getCachedFieldValues(FieldCache cache, String field, IndexReader reader)
abstract DocValues	FieldCacheSource.getCachedFieldValues(FieldCache cache, String field, IndexReader reader) Return cached DocValues for input field and reader.
DocValues	IntFieldSource.getCachedFieldValues(FieldCache cache, String field, IndexReader reader)
protected CustomScoreProvider	CustomScoreQuery.getCustomScoreProvider(IndexReader reader) Returns a CustomScoreProvider that calculates the custom scores for the given IndexReader.
DocValues	ReverseOrdFieldSource.getValues(IndexReader reader)
DocValues	OrdFieldSource.getValues(IndexReader reader)
abstract DocValues	ValueSource.getValues(IndexReader reader) Return the DocValues used by the function query.
DocValues	FieldCacheSource.getValues(IndexReader reader)
Query	ValueSourceQuery.rewrite(IndexReader reader)
Query	CustomScoreQuery.rewrite(IndexReader reader)

Constructors in org.apache.lucene.search.function with parameters of type IndexReader

CustomScoreProvider(IndexReader reader)
Creates a new instance of the provider class for the given IndexReader.

Uses of IndexReader in org.apache.lucene.search.payloads

Methods in org.apache.lucene.search.payloads with parameters of type IndexReader

Scorer	PayloadNearQuery.PayloadNearSpanWeight.scorer(IndexReader reader, boolean scoreDocsInOrder, boolean topScorer)
Scorer	PayloadTermQuery.PayloadTermWeight.scorer(IndexReader reader, boolean scoreDocsInOrder, boolean topScorer)

Constructors in org.apache.lucene.search.payloads with parameters of type IndexReader

PayloadSpanUtil(IndexReader reader)

Uses of IndexReader in org.apache.lucene.search.spans

Methods in org.apache.lucene.search.spans with parameters of type IndexReader

Explanation	SpanWeight.explain(IndexReader reader, int doc)
Spans	SpanOrQuery.getSpans(IndexReader reader)
Spans	SpanMultiTermQueryWrapper.getSpans(IndexReader reader)
Spans	FieldMaskingSpanQuery.getSpans(IndexReader reader)
Spans	SpanNotQuery.getSpans(IndexReader reader)
Spans	SpanNearQuery.getSpans(IndexReader reader)
Spans	SpanTermQuery.getSpans(IndexReader reader)
abstract Spans	SpanQuery.getSpans(IndexReader reader) Expert: Returns the matches for this query in an index.
Spans	SpanPositionCheckQuery.getSpans(IndexReader reader)
Query	SpanOrQuery.rewrite(IndexReader reader)
Query	SpanMultiTermQueryWrapper.rewrite(IndexReader reader)
Query	FieldMaskingSpanQuery.rewrite(IndexReader reader)
Query	SpanNotQuery.rewrite(IndexReader reader)
Query	SpanNearQuery.rewrite(IndexReader reader)
Query	SpanPositionCheckQuery.rewrite(IndexReader reader)
abstract SpanQuery	SpanMultiTermQueryWrapper.SpanRewriteMethod.rewrite(IndexReader reader, MultiTermQuery query)
SpanQuery	SpanMultiTermQueryWrapper.TopTermsSpanBooleanQueryRewrite.rewrite(IndexReader reader, MultiTermQuery query)
Scorer	SpanWeight.scorer(IndexReader reader, boolean scoreDocsInOrder, boolean topScorer)

Constructors in org.apache.lucene.search.spans with parameters of type IndexReader

NearSpansOrdered(SpanNearQuery spanNearQuery, IndexReader reader)

NearSpansOrdered(SpanNearQuery spanNearQuery, IndexReader reader, boolean collectPayloads)

NearSpansUnordered(SpanNearQuery query, IndexReader reader)

SpanPositionCheckQuery.PositionCheckSpan(IndexReader reader)

Uses of IndexReader in org.apache.lucene.util

Methods in org.apache.lucene.util that return IndexReader

static IndexReader	ReaderUtil.subReader(IndexReader reader, int subIndex) Returns sub-reader subIndex from reader.
static IndexReader	ReaderUtil.subReader(int doc, IndexReader reader) Returns sub IndexReader that contains the given document id.

Methods in org.apache.lucene.util with parameters of type IndexReader

protected abstract void	ReaderUtil.Gather.add(int base, IndexReader r)
static void	ReaderUtil.gatherSubReaders(List<IndexReader> allSubReaders, IndexReader reader) Gathers sub-readers from reader into a List.
static IndexReader	ReaderUtil.subReader(IndexReader reader, int subIndex) Returns sub-reader subIndex from reader.
static IndexReader	ReaderUtil.subReader(int doc, IndexReader reader) Returns sub IndexReader that contains the given document id.

Method parameters in org.apache.lucene.util with type arguments of type IndexReader

static void

ReaderUtil.gatherSubReaders(List<IndexReader> allSubReaders, IndexReader reader) Gathers sub-readers from reader into a List.

Constructors in org.apache.lucene.util with parameters of type IndexReader

ReaderUtil.Gather(IndexReader r)