Class TermVectorFilteredLeafReader
java.lang.Object
org.apache.lucene.index.IndexReader
org.apache.lucene.index.LeafReader
org.apache.lucene.index.FilterLeafReader
org.apache.lucene.search.uhighlight.TermVectorFilteredLeafReader
- All Implemented Interfaces:
Closeable
,AutoCloseable
A filtered LeafReader that only includes the terms that are also in a provided set of terms.
Certain methods may be unimplemented or cause large operations on the underlying reader and be
slow.
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Nested Class Summary
Nested ClassesModifier and TypeClassDescriptionprivate static final class
private static final class
Nested classes/interfaces inherited from class org.apache.lucene.index.FilterLeafReader
FilterLeafReader.FilterFields, FilterLeafReader.FilterPostingsEnum, FilterLeafReader.FilterTerms, FilterLeafReader.FilterTermsEnum
Nested classes/interfaces inherited from class org.apache.lucene.index.IndexReader
IndexReader.CacheHelper, IndexReader.CacheKey, IndexReader.ClosedListener
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Field Summary
FieldsFields inherited from class org.apache.lucene.index.FilterLeafReader
in
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Constructor Summary
ConstructorsConstructorDescriptionTermVectorFilteredLeafReader
(LeafReader baseLeafReader, Terms filterTerms, String fieldFilter) Construct a FilterLeafReader based on the specified base reader. -
Method Summary
Modifier and TypeMethodDescriptionOptional method: Return aIndexReader.CacheHelper
that can be used to cache based on the content of this leaf regardless of deletions.Optional method: Return aIndexReader.CacheHelper
that can be used to cache based on the content of this reader.Returns theTerms
index for this field, or null if it has none.Methods inherited from class org.apache.lucene.index.FilterLeafReader
checkIntegrity, doClose, document, getBinaryDocValues, getByteVectorValues, getDelegate, getFieldInfos, getFloatVectorValues, getLiveDocs, getMetaData, getNormValues, getNumericDocValues, getPointValues, getSortedDocValues, getSortedNumericDocValues, getSortedSetDocValues, getTermVectors, maxDoc, numDocs, searchNearestVectors, searchNearestVectors, storedFields, termVectors, toString, unwrap
Methods inherited from class org.apache.lucene.index.LeafReader
docFreq, getContext, getDocCount, getSumDocFreq, getSumTotalTermFreq, postings, postings, totalTermFreq
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 Details
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filterTerms
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fieldFilter
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Constructor Details
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TermVectorFilteredLeafReader
TermVectorFilteredLeafReader(LeafReader baseLeafReader, Terms filterTerms, String fieldFilter) Construct a FilterLeafReader based on the specified base reader.Note that base reader is closed if this FilterLeafReader is closed.
- Parameters:
baseLeafReader
- full/original reader.filterTerms
- set of terms to filter by -- probably from a TermVector or MemoryIndex.fieldFilter
- the field to do this on
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Method Details
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terms
Description copied from class:LeafReader
Returns theTerms
index for this field, or null if it has none.- Overrides:
terms
in classFilterLeafReader
- Throws:
IOException
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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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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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