- java.lang.Object
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- org.apache.lucene.index.IndexReader
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- org.apache.lucene.index.LeafReader
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- org.apache.lucene.index.CodecReader
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- org.apache.lucene.index.SlowCompositeCodecReaderWrapper
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- All Implemented Interfaces:
java.io.Closeable
,java.lang.AutoCloseable
final class SlowCompositeCodecReaderWrapper extends CodecReader
A mergedCodecReader
view of multipleCodecReader
. This view is primarily targeted at merging, not searching.
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Nested Class Summary
Nested Classes Modifier and Type Class Description private static class
SlowCompositeCodecReaderWrapper.DocValuesSub<T extends DocIdSetIterator>
private static class
SlowCompositeCodecReaderWrapper.MergedDocIdSetIterator<T extends DocIdSetIterator>
private static class
SlowCompositeCodecReaderWrapper.PointValuesSub
private static class
SlowCompositeCodecReaderWrapper.SlowCompositeDocValuesProducerWrapper
private static class
SlowCompositeCodecReaderWrapper.SlowCompositeFieldsProducerWrapper
private static class
SlowCompositeCodecReaderWrapper.SlowCompositeKnnVectorsReaderWrapper
private static class
SlowCompositeCodecReaderWrapper.SlowCompositeNormsProducer
private static class
SlowCompositeCodecReaderWrapper.SlowCompositePointsReaderWrapper
private class
SlowCompositeCodecReaderWrapper.SlowCompositeStoredFieldsReaderWrapper
private class
SlowCompositeCodecReaderWrapper.SlowCompositeTermVectorsReaderWrapper
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Nested classes/interfaces inherited from class org.apache.lucene.index.IndexReader
IndexReader.CacheHelper, IndexReader.CacheKey, IndexReader.ClosedListener
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Field Summary
Fields Modifier and Type Field Description private CodecReader[]
codecReaders
private int[]
docStarts
private FieldInfos
fieldInfos
private Bits
liveDocs
private LeafMetaData
meta
(package private) int
numDocs
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Constructor Summary
Constructors Modifier Constructor Description private
SlowCompositeCodecReaderWrapper(java.util.List<CodecReader> codecReaders)
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Method Summary
All Methods Static Methods Instance Methods Concrete Methods Modifier and Type Method Description private int
docIdToReaderId(int doc)
IndexReader.CacheHelper
getCoreCacheHelper()
Optional method: Return aIndexReader.CacheHelper
that can be used to cache based on the content of this leaf regardless of deletions.DocValuesProducer
getDocValuesReader()
Expert: retrieve underlying DocValuesProducerFieldInfos
getFieldInfos()
Get theFieldInfos
describing all fields in this reader.StoredFieldsReader
getFieldsReader()
Expert: retrieve underlying StoredFieldsReaderBits
getLiveDocs()
Returns theBits
representing live (not deleted) docs.LeafMetaData
getMetaData()
Return metadata about this leaf.NormsProducer
getNormsReader()
Expert: retrieve underlying NormsProducerPointsReader
getPointsReader()
Expert: retrieve underlying PointsReaderFieldsProducer
getPostingsReader()
Expert: retrieve underlying FieldsProducerIndexReader.CacheHelper
getReaderCacheHelper()
Optional method: Return aIndexReader.CacheHelper
that can be used to cache based on the content of this reader.TermVectorsReader
getTermVectorsReader()
Expert: retrieve underlying TermVectorsReaderKnnVectorsReader
getVectorReader()
Expert: retrieve underlying VectorReaderint
maxDoc()
Returns one greater than the largest possible document number.int
numDocs()
Returns the number of documents in this index.private FieldInfo
remap(FieldInfo info)
(package private) static CodecReader
wrap(java.util.List<CodecReader> readers)
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Methods inherited from class org.apache.lucene.index.CodecReader
checkIntegrity, doClose, document, getBinaryDocValues, getByteVectorValues, getFloatVectorValues, getNormValues, getNumericDocValues, getPointValues, getSortedDocValues, getSortedNumericDocValues, getSortedSetDocValues, getTermVectors, searchNearestVectors, searchNearestVectors, storedFields, terms, termVectors
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Methods inherited from class org.apache.lucene.index.LeafReader
docFreq, getContext, getDocCount, getSumDocFreq, getSumTotalTermFreq, postings, postings, searchNearestVectors, searchNearestVectors, totalTermFreq
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Methods inherited from class org.apache.lucene.index.IndexReader
close, decRef, document, document, ensureOpen, equals, getRefCount, getTermVector, hasDeletions, hashCode, incRef, leaves, notifyReaderClosedListeners, numDeletedDocs, registerParentReader, tryIncRef
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Field Detail
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meta
private final LeafMetaData meta
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codecReaders
private final CodecReader[] codecReaders
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docStarts
private final int[] docStarts
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fieldInfos
private final FieldInfos fieldInfos
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liveDocs
private final Bits liveDocs
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numDocs
int numDocs
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Constructor Detail
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SlowCompositeCodecReaderWrapper
private SlowCompositeCodecReaderWrapper(java.util.List<CodecReader> codecReaders) throws java.io.IOException
- Throws:
java.io.IOException
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Method Detail
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wrap
static CodecReader wrap(java.util.List<CodecReader> readers) throws java.io.IOException
- Throws:
java.io.IOException
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docIdToReaderId
private int docIdToReaderId(int doc)
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getFieldsReader
public StoredFieldsReader getFieldsReader()
Description copied from class:CodecReader
Expert: retrieve underlying StoredFieldsReader- Specified by:
getFieldsReader
in classCodecReader
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getTermVectorsReader
public TermVectorsReader getTermVectorsReader()
Description copied from class:CodecReader
Expert: retrieve underlying TermVectorsReader- Specified by:
getTermVectorsReader
in classCodecReader
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getNormsReader
public NormsProducer getNormsReader()
Description copied from class:CodecReader
Expert: retrieve underlying NormsProducer- Specified by:
getNormsReader
in classCodecReader
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getDocValuesReader
public DocValuesProducer getDocValuesReader()
Description copied from class:CodecReader
Expert: retrieve underlying DocValuesProducer- Specified by:
getDocValuesReader
in classCodecReader
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getPostingsReader
public FieldsProducer getPostingsReader()
Description copied from class:CodecReader
Expert: retrieve underlying FieldsProducer- Specified by:
getPostingsReader
in classCodecReader
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getPointsReader
public PointsReader getPointsReader()
Description copied from class:CodecReader
Expert: retrieve underlying PointsReader- Specified by:
getPointsReader
in classCodecReader
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getVectorReader
public KnnVectorsReader getVectorReader()
Description copied from class:CodecReader
Expert: retrieve underlying VectorReader- Specified by:
getVectorReader
in classCodecReader
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getCoreCacheHelper
public IndexReader.CacheHelper getCoreCacheHelper()
Description copied from class:LeafReader
Optional method: Return aIndexReader.CacheHelper
that can be used to cache based on the content of this leaf regardless of deletions. Two readers that have the same data but different sets of deleted documents or doc values updates may be considered equal. Consider usingIndexReader.getReaderCacheHelper()
if you need deletions or dv updates to be taken into account.A return value of
null
indicates that this reader is not suited for caching, which is typically the case for short-lived wrappers that alter the content of the wrapped leaf reader.- Specified by:
getCoreCacheHelper
in classLeafReader
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getFieldInfos
public FieldInfos getFieldInfos()
Description copied from class:LeafReader
Get theFieldInfos
describing all fields in this reader.Note: Implementations should cache the FieldInfos instance returned by this method such that subsequent calls to this method return the same instance.
- Specified by:
getFieldInfos
in classLeafReader
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getLiveDocs
public Bits getLiveDocs()
Description copied from class:LeafReader
Returns theBits
representing live (not deleted) docs. A set bit indicates the doc ID has not been deleted. If this method returns null it means there are no deleted documents (all documents are live).The returned instance has been safely published for use by multiple threads without additional synchronization.
- Specified by:
getLiveDocs
in classLeafReader
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getMetaData
public LeafMetaData getMetaData()
Description copied from class:LeafReader
Return metadata about this leaf.- Specified by:
getMetaData
in classLeafReader
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numDocs
public int numDocs()
Description copied from class:IndexReader
Returns the number of documents in this index.NOTE: This operation may run in O(maxDoc). Implementations that can't return this number in constant-time should cache it.
- Specified by:
numDocs
in classIndexReader
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maxDoc
public int maxDoc()
Description copied from class:IndexReader
Returns one greater than the largest possible document number. This may be used to, e.g., determine how big to allocate an array which will have an element for every document number in an index.- Specified by:
maxDoc
in classIndexReader
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getReaderCacheHelper
public IndexReader.CacheHelper getReaderCacheHelper()
Description copied from class:IndexReader
Optional method: Return aIndexReader.CacheHelper
that can be used to cache based on the content of this reader. Two readers that have different data or different sets of deleted documents will be considered different.A return value of
null
indicates that this reader is not suited for caching, which is typically the case for short-lived wrappers that alter the content of the wrapped reader.- Specified by:
getReaderCacheHelper
in classIndexReader
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