public final class FieldFilterLeafReader extends FilterLeafReader
FilterLeafReader
that exposes only a subset
of fields from the underlying wrapped reader.FilterLeafReader.FilterFields, FilterLeafReader.FilterPostingsEnum, FilterLeafReader.FilterTerms, FilterLeafReader.FilterTermsEnum
LeafReader.CoreClosedListener
IndexReader.ReaderClosedListener
in
Constructor and Description |
---|
FieldFilterLeafReader(LeafReader in,
Set<String> fields,
boolean negate) |
Modifier and Type | Method and Description |
---|---|
void |
document(int docID,
StoredFieldVisitor visitor)
Expert: visits the fields of a stored document, for
custom processing/loading of each field.
|
Fields |
fields()
Returns
Fields for this reader. |
BinaryDocValues |
getBinaryDocValues(String field)
Returns
BinaryDocValues for this field, or
null if no BinaryDocValues were indexed for
this field. |
Bits |
getDocsWithField(String field)
Returns a
Bits at the size of reader.maxDoc() ,
with turned on bits for each docid that does have a value for this field,
or null if no DocValues were indexed for this field. |
FieldInfos |
getFieldInfos()
Get the
FieldInfos describing all fields in
this reader. |
NumericDocValues |
getNormValues(String field)
Returns
NumericDocValues representing norms
for this field, or null if no NumericDocValues
were indexed. |
NumericDocValues |
getNumericDocValues(String field)
Returns
NumericDocValues for this field, or
null if no NumericDocValues were indexed for
this field. |
SortedDocValues |
getSortedDocValues(String field)
Returns
SortedDocValues for this field, or
null if no SortedDocValues were indexed for
this field. |
SortedNumericDocValues |
getSortedNumericDocValues(String field)
Returns
SortedNumericDocValues for this field, or
null if no SortedNumericDocValues were indexed for
this field. |
SortedSetDocValues |
getSortedSetDocValues(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.
|
String |
toString() |
addCoreClosedListener, checkIntegrity, doClose, getDelegate, getLiveDocs, maxDoc, numDocs, removeCoreClosedListener, unwrap
addCoreClosedListenerAsReaderClosedListener, docFreq, getContext, getDocCount, getSumDocFreq, getSumTotalTermFreq, postings, postings, removeCoreClosedListenerAsReaderClosedListener, termDocsEnum, termPositionsEnum, terms, totalTermFreq
addReaderClosedListener, close, decRef, document, document, ensureOpen, equals, getCombinedCoreAndDeletesKey, getCoreCacheKey, getRefCount, getTermVector, hasDeletions, hashCode, incRef, leaves, numDeletedDocs, registerParentReader, removeReaderClosedListener, tryIncRef
public FieldFilterLeafReader(LeafReader in, Set<String> fields, boolean negate)
public FieldInfos getFieldInfos()
LeafReader
FieldInfos
describing all fields in
this reader.getFieldInfos
in class FilterLeafReader
public Fields getTermVectors(int docID) throws IOException
IndexReader
getTermVectors
in class FilterLeafReader
IOException
public void document(int docID, StoredFieldVisitor visitor) throws IOException
IndexReader
IndexReader.document(int)
. If you want to load a subset, use
DocumentStoredFieldVisitor
.document
in class FilterLeafReader
IOException
public Fields fields() throws IOException
LeafReader
Fields
for this reader.
This method will not return null.fields
in class FilterLeafReader
IOException
public NumericDocValues getNumericDocValues(String field) throws IOException
LeafReader
NumericDocValues
for this field, or
null if no NumericDocValues
were indexed for
this field. The returned instance should only be
used by a single thread.getNumericDocValues
in class FilterLeafReader
IOException
public BinaryDocValues getBinaryDocValues(String field) throws IOException
LeafReader
BinaryDocValues
for this field, or
null if no BinaryDocValues
were indexed for
this field. The returned instance should only be
used by a single thread.getBinaryDocValues
in class FilterLeafReader
IOException
public SortedDocValues getSortedDocValues(String field) throws IOException
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 FilterLeafReader
IOException
public SortedNumericDocValues getSortedNumericDocValues(String field) throws IOException
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 FilterLeafReader
IOException
public SortedSetDocValues getSortedSetDocValues(String field) throws IOException
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 FilterLeafReader
IOException
public NumericDocValues getNormValues(String field) throws IOException
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 FilterLeafReader
IOException
public Bits getDocsWithField(String field) throws IOException
LeafReader
Bits
at the size of reader.maxDoc()
,
with turned on bits for each docid that does have a value for this field,
or null if no DocValues were indexed for this field. The
returned instance should only be used by a single threadgetDocsWithField
in class FilterLeafReader
IOException
public String toString()
toString
in class FilterLeafReader
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