private final class MemoryIndex.MemoryIndexReader extends LeafReader
Modifier and Type | Class and Description |
---|---|
private class |
MemoryIndex.MemoryIndexReader.MemoryFields |
private class |
MemoryIndex.MemoryIndexReader.MemoryIndexPointValues |
private class |
MemoryIndex.MemoryIndexReader.MemoryPostingsEnum |
private class |
MemoryIndex.MemoryIndexReader.MemoryTermsEnum |
IndexReader.CacheHelper, IndexReader.CacheKey, IndexReader.ClosedListener
Modifier and Type | Field and Description |
---|---|
private FieldInfos |
fieldInfos |
private MemoryIndex.MemoryIndexReader.MemoryFields |
memoryFields |
Modifier | Constructor and Description |
---|---|
private |
MemoryIndexReader() |
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 |
getBinaryDocValues(java.lang.String field)
Returns
BinaryDocValues for this field, or
null if no binary doc values were indexed for
this field. |
IndexReader.CacheHelper |
getCoreCacheHelper()
Optional method: Return a
IndexReader.CacheHelper that can be used to cache
based on the content of this leaf regardless of deletions. |
FieldInfos |
getFieldInfos()
Get the
FieldInfos describing all fields in
this reader. |
private MemoryIndex.Info |
getInfoForExpectedDocValuesType(java.lang.String fieldName,
DocValuesType expectedType) |
Bits |
getLiveDocs()
Returns the
Bits representing live (not
deleted) docs. |
LeafMetaData |
getMetaData()
Return metadata about this leaf.
|
NumericDocValues |
getNormValues(java.lang.String field)
Returns
NumericDocValues representing norms
for this field, or null if no NumericDocValues
were indexed. |
NumericDocValues |
getNumericDocValues(java.lang.String field)
Returns
NumericDocValues for this field, or
null if no numeric doc values were indexed for
this field. |
PointValues |
getPointValues(java.lang.String fieldName)
Returns the
PointValues used for numeric or
spatial searches for the given field, or null if there
are no point fields. |
IndexReader.CacheHelper |
getReaderCacheHelper()
Optional method: Return a
IndexReader.CacheHelper that can be used to cache
based on the content of this reader. |
SortedDocValues |
getSortedDocValues(java.lang.String field)
Returns
SortedDocValues for this field, or
null if no SortedDocValues were indexed for
this field. |
private SortedDocValues |
getSortedDocValues(java.lang.String field,
DocValuesType docValuesType) |
SortedNumericDocValues |
getSortedNumericDocValues(java.lang.String field)
Returns
SortedNumericDocValues for this field, or
null if no SortedNumericDocValues were indexed for
this field. |
SortedSetDocValues |
getSortedSetDocValues(java.lang.String 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.
|
int |
maxDoc()
Returns one greater than the largest possible document number.
|
int |
numDocs()
Returns the number of documents in this index.
|
Terms |
terms(java.lang.String field)
Returns the
Terms index for this field, or null if it has none. |
docFreq, getContext, getDocCount, getSumDocFreq, getSumTotalTermFreq, postings, postings, totalTermFreq
close, decRef, document, document, ensureOpen, equals, getRefCount, getTermVector, hasDeletions, hashCode, incRef, leaves, numDeletedDocs, registerParentReader, tryIncRef
private final MemoryIndex.MemoryIndexReader.MemoryFields memoryFields
private final FieldInfos fieldInfos
private MemoryIndex.Info getInfoForExpectedDocValuesType(java.lang.String fieldName, DocValuesType expectedType)
public Bits getLiveDocs()
LeafReader
Bits
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.getLiveDocs
in class LeafReader
public FieldInfos getFieldInfos()
LeafReader
FieldInfos
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.getFieldInfos
in class LeafReader
public NumericDocValues getNumericDocValues(java.lang.String field) throws java.io.IOException
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
java.io.IOException
public BinaryDocValues getBinaryDocValues(java.lang.String field)
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 SortedDocValues getSortedDocValues(java.lang.String field)
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
private SortedDocValues getSortedDocValues(java.lang.String field, DocValuesType docValuesType)
public SortedNumericDocValues getSortedNumericDocValues(java.lang.String field)
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 SortedSetDocValues getSortedSetDocValues(java.lang.String field)
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 PointValues getPointValues(java.lang.String fieldName)
LeafReader
PointValues
used for numeric or
spatial searches for the given field, or null if there
are no point fields.getPointValues
in class LeafReader
public void checkIntegrity() throws java.io.IOException
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
java.io.IOException
public Terms terms(java.lang.String field) throws java.io.IOException
LeafReader
Terms
index for this field, or null if it has none.terms
in class LeafReader
java.io.IOException
public Fields getTermVectors(int docID)
IndexReader
getTermVectors
in class IndexReader
public int numDocs()
IndexReader
numDocs
in class IndexReader
public int maxDoc()
IndexReader
maxDoc
in class IndexReader
public void document(int docID, StoredFieldVisitor visitor)
IndexReader
IndexReader.document(int)
. If you want to load a subset, use
DocumentStoredFieldVisitor
.document
in class IndexReader
protected void doClose()
IndexReader
doClose
in class IndexReader
public NumericDocValues getNormValues(java.lang.String field)
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 LeafMetaData getMetaData()
LeafReader
getMetaData
in class LeafReader
public IndexReader.CacheHelper getCoreCacheHelper()
LeafReader
IndexReader.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 using
IndexReader.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.
getCoreCacheHelper
in class LeafReader
public IndexReader.CacheHelper getReaderCacheHelper()
IndexReader
IndexReader.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.
getReaderCacheHelper
in class IndexReader