Class SimpleTextFieldsReader.SimpleTextTermsEnum
- java.lang.Object
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- org.apache.lucene.index.TermsEnum
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- org.apache.lucene.index.BaseTermsEnum
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- org.apache.lucene.codecs.simpletext.SimpleTextFieldsReader.SimpleTextTermsEnum
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- All Implemented Interfaces:
BytesRefIterator
- Enclosing class:
- SimpleTextFieldsReader
private class SimpleTextFieldsReader.SimpleTextTermsEnum extends BaseTermsEnum
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Nested Class Summary
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Nested classes/interfaces inherited from class org.apache.lucene.index.TermsEnum
TermsEnum.SeekStatus
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Field Summary
Fields Modifier and Type Field Description private int
docFreq
private long
docsStart
private boolean
ended
private BytesRefFSTEnum<PairOutputs.Pair<java.lang.Long,PairOutputs.Pair<java.lang.Long,java.lang.Long>>>
fstEnum
private IndexOptions
indexOptions
private long
totalTermFreq
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Constructor Summary
Constructors Constructor Description SimpleTextTermsEnum(FST<PairOutputs.Pair<java.lang.Long,PairOutputs.Pair<java.lang.Long,java.lang.Long>>> fst, IndexOptions indexOptions)
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description int
docFreq()
Returns the number of documents containing the current term.ImpactsEnum
impacts(int flags)
Return aImpactsEnum
.BytesRef
next()
Increments the iteration to the nextBytesRef
in the iterator.long
ord()
Returns ordinal position for current term.PostingsEnum
postings(PostingsEnum reuse, int flags)
GetPostingsEnum
for the current term, with control over whether freqs, positions, offsets or payloads are required.TermsEnum.SeekStatus
seekCeil(BytesRef text)
Seeks to the specified term, if it exists, or to the next (ceiling) term.void
seekExact(long ord)
Seeks to the specified term by ordinal (position) as previously returned byTermsEnum.ord()
.boolean
seekExact(BytesRef text)
Attempts to seek to the exact term, returning true if the term is found.BytesRef
term()
Returns current term.long
totalTermFreq()
Returns the total number of occurrences of this term across all documents (the sum of the freq() for each doc that has this term).-
Methods inherited from class org.apache.lucene.index.BaseTermsEnum
attributes, seekExact, termState
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Field Detail
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indexOptions
private final IndexOptions indexOptions
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docFreq
private int docFreq
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totalTermFreq
private long totalTermFreq
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docsStart
private long docsStart
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ended
private boolean ended
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fstEnum
private final BytesRefFSTEnum<PairOutputs.Pair<java.lang.Long,PairOutputs.Pair<java.lang.Long,java.lang.Long>>> fstEnum
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Constructor Detail
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SimpleTextTermsEnum
public SimpleTextTermsEnum(FST<PairOutputs.Pair<java.lang.Long,PairOutputs.Pair<java.lang.Long,java.lang.Long>>> fst, IndexOptions indexOptions)
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Method Detail
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seekExact
public boolean seekExact(BytesRef text) throws java.io.IOException
Description copied from class:TermsEnum
Attempts to seek to the exact term, returning true if the term is found. If this returns false, the enum is unpositioned. For some codecs, seekExact may be substantially faster thanTermsEnum.seekCeil(org.apache.lucene.util.BytesRef)
.- Overrides:
seekExact
in classBaseTermsEnum
- Returns:
- true if the term is found; return false if the enum is unpositioned.
- Throws:
java.io.IOException
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seekCeil
public TermsEnum.SeekStatus seekCeil(BytesRef text) throws java.io.IOException
Description copied from class:TermsEnum
Seeks to the specified term, if it exists, or to the next (ceiling) term. Returns SeekStatus to indicate whether exact term was found, a different term was found, or EOF was hit. The target term may be before or after the current term. If this returns SeekStatus.END, the enum is unpositioned.
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next
public BytesRef next() throws java.io.IOException
Description copied from interface:BytesRefIterator
Increments the iteration to the nextBytesRef
in the iterator. Returns the resultingBytesRef
ornull
if the end of the iterator is reached. The returned BytesRef may be re-used across calls to next. After this method returns null, do not call it again: the results are undefined.- Returns:
- the next
BytesRef
in the iterator ornull
if the end of the iterator is reached. - Throws:
java.io.IOException
- If there is a low-level I/O error.
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term
public BytesRef term()
Description copied from class:TermsEnum
Returns current term. Do not call this when the enum is unpositioned.
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ord
public long ord() throws java.io.IOException
Description copied from class:TermsEnum
Returns ordinal position for current term. This is an optional method (the codec may throwUnsupportedOperationException
). Do not call this when the enum is unpositioned.
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seekExact
public void seekExact(long ord)
Description copied from class:TermsEnum
Seeks to the specified term by ordinal (position) as previously returned byTermsEnum.ord()
. The target ord may be before or after the current ord, and must be within bounds.
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docFreq
public int docFreq()
Description copied from class:TermsEnum
Returns the number of documents containing the current term. Do not call this when the enum is unpositioned.TermsEnum.SeekStatus.END
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totalTermFreq
public long totalTermFreq()
Description copied from class:TermsEnum
Returns the total number of occurrences of this term across all documents (the sum of the freq() for each doc that has this term). Note that, like other term measures, this measure does not take deleted documents into account.- Specified by:
totalTermFreq
in classTermsEnum
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postings
public PostingsEnum postings(PostingsEnum reuse, int flags) throws java.io.IOException
Description copied from class:TermsEnum
GetPostingsEnum
for the current term, with control over whether freqs, positions, offsets or payloads are required. Do not call this when the enum is unpositioned. This method will not return null.NOTE: the returned iterator may return deleted documents, so deleted documents have to be checked on top of the
PostingsEnum
.- Specified by:
postings
in classTermsEnum
- Parameters:
reuse
- pass a prior PostingsEnum for possible reuseflags
- specifies which optional per-document values you require; seePostingsEnum.FREQS
- Throws:
java.io.IOException
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impacts
public ImpactsEnum impacts(int flags) throws java.io.IOException
Description copied from class:TermsEnum
Return aImpactsEnum
.- Specified by:
impacts
in classTermsEnum
- Throws:
java.io.IOException
- See Also:
TermsEnum.postings(PostingsEnum, int)
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