public abstract class CodecReader extends LeafReader implements Accountable
IndexReader.CacheHelper, IndexReader.CacheKey, IndexReader.ClosedListener
NULL_ACCOUNTABLE
Modifier | Constructor and Description |
---|---|
protected |
CodecReader()
Sole constructor.
|
Modifier and Type | Method and Description |
---|---|
void |
checkIntegrity()
Checks consistency of this reader.
|
protected void |
doClose()
Implements close.
|
void |
document(int docID,
StoredFieldVisitor visitor)
Expert: visits the fields of a stored document, for
custom processing/loading of each field.
|
BinaryDocValues |
field)
Returns
BinaryDocValues for this field, or
null if no binary doc values were indexed for
this field. |
<Accountable> |
getChildResources()
Returns nested resources of this class.
|
abstract DocValuesProducer |
getDocValuesReader()
Expert: retrieve underlying DocValuesProducer
|
abstract StoredFieldsReader |
getFieldsReader()
Expert: retrieve thread-private StoredFieldsReader
|
abstract NormsProducer |
getNormsReader()
Expert: retrieve underlying NormsProducer
|
NumericDocValues |
field)
Returns
NumericDocValues representing norms
for this field, or null if no NumericDocValues
were indexed. |
NumericDocValues |
field)
Returns
NumericDocValues for this field, or
null if no numeric doc values were indexed for
this field. |
abstract PointsReader |
getPointsReader()
Expert: retrieve underlying PointsReader
|
PointValues |
field)
Returns the
PointValues used for numeric or
spatial searches for the given field, or null if there
are no point fields. |
abstract FieldsProducer |
getPostingsReader()
Expert: retrieve underlying FieldsProducer
|
SortedDocValues |
field)
Returns
SortedDocValues for this field, or
null if no SortedDocValues were indexed for
this field. |
SortedNumericDocValues |
field)
Returns
SortedNumericDocValues for this field, or
null if no SortedNumericDocValues were indexed for
this field. |
SortedSetDocValues |
field)
Returns
SortedSetDocValues for this field, or
null if no SortedSetDocValues were indexed for
this field. |
Fields |
getTermVectors(int docID)
Retrieve term vectors for this document, or null if
term vectors were not indexed.
|
abstract TermVectorsReader |
getTermVectorsReader()
Expert: retrieve thread-private TermVectorsReader
|
long |
ramBytesUsed()
Return the memory usage of this object in bytes.
|
Terms |
field)
Returns the
Terms index for this field, or null if it has none. |
docFreq, getContext, getCoreCacheHelper, getDocCount, getFieldInfos, getLiveDocs, getMetaData, getSumDocFreq, getSumTotalTermFreq, postings, postings, totalTermFreq
close, decRef, document, document, ensureOpen, equals, getReaderCacheHelper, getRefCount, getTermVector, hasDeletions, hashCode, incRef, leaves, maxDoc, numDeletedDocs, numDocs, registerParentReader, tryIncRef
protected CodecReader()
public abstract StoredFieldsReader getFieldsReader()
public abstract TermVectorsReader getTermVectorsReader()
public abstract NormsProducer getNormsReader()
public abstract DocValuesProducer getDocValuesReader()
public abstract FieldsProducer getPostingsReader()
public abstract PointsReader getPointsReader()
public final void document(int docID, StoredFieldVisitor visitor) throws
IndexReader
IndexReader.document(int)
. If you want to load a subset, use
DocumentStoredFieldVisitor
.document
in class IndexReader
public final Fields getTermVectors(int docID) throws
IndexReader
getTermVectors
in class IndexReader
public final field) throws
LeafReader
Terms
index for this field, or null if it has none.terms
in class LeafReader
public final field) throws
LeafReader
NumericDocValues
for this field, or
null if no numeric doc values were indexed for
this field. The returned instance should only be
used by a single thread.getNumericDocValues
in class LeafReader
public final field) throws
LeafReader
BinaryDocValues
for this field, or
null if no binary doc values were indexed for
this field. The returned instance should only be
used by a single thread.getBinaryDocValues
in class LeafReader
public final field) throws
LeafReader
SortedDocValues
for this field, or
null if no SortedDocValues
were indexed for
this field. The returned instance should only be
used by a single thread.getSortedDocValues
in class LeafReader
public final field) throws
LeafReader
SortedNumericDocValues
for this field, or
null if no SortedNumericDocValues
were indexed for
this field. The returned instance should only be
used by a single thread.getSortedNumericDocValues
in class LeafReader
public final field) throws
LeafReader
SortedSetDocValues
for this field, or
null if no SortedSetDocValues
were indexed for
this field. The returned instance should only be
used by a single thread.getSortedSetDocValues
in class LeafReader
public final field) throws
LeafReader
NumericDocValues
representing norms
for this field, or null if no NumericDocValues
were indexed. The returned instance should only be
used by a single thread.getNormValues
in class LeafReader
public final field) throws
LeafReader
PointValues
used for numeric or
spatial searches for the given field, or null if there
are no point fields.getPointValues
in class LeafReader
protected void doClose() throws
IndexReader
doClose
in class IndexReader
public long ramBytesUsed()
Accountable
ramBytesUsed
in interface Accountable
public <Accountable> getChildResources()
Accountable
getChildResources
in interface Accountable
Accountables
public void checkIntegrity() throws
LeafReader
Note that this may be costly in terms of I/O, e.g. may involve computing a checksum value against large data files.
checkIntegrity
in class LeafReader
Copyright © 2000-2021 Apache Software Foundation. All Rights Reserved.