final class Lucene50PostingsReader.BlockImpactsEverythingEnum extends ImpactsEnum
Modifier and Type | Field and Description |
---|---|
private int |
accum |
private int |
doc |
private int |
docBufferUpto |
private int[] |
docDeltaBuffer |
private int |
docFreq |
(package private) IndexInput |
docIn |
private long |
docTermStartFP |
private int |
docUpto |
private byte[] |
encoded |
private int |
endOffset |
private int |
freq |
private int[] |
freqBuffer |
(package private) boolean |
indexHasFreq |
(package private) boolean |
indexHasOffsets |
(package private) boolean |
indexHasPayloads |
(package private) boolean |
indexHasPos |
private long |
lastPosBlockFP |
private int |
lastStartOffset |
private boolean |
needsOffsets |
private boolean |
needsPayloads |
private boolean |
needsPositions |
private int |
nextSkipDoc |
private int[] |
offsetLengthBuffer |
private int[] |
offsetStartDeltaBuffer |
(package private) IndexInput |
payIn |
(package private) BytesRef |
payload |
private byte[] |
payloadBytes |
private int |
payloadByteUpto |
private int |
payloadLength |
private int[] |
payloadLengthBuffer |
private long |
payPendingFP |
private long |
payTermStartFP |
private int |
posBufferUpto |
private int[] |
posDeltaBuffer |
(package private) IndexInput |
posIn |
private int |
position |
private int |
posPendingCount |
private long |
posPendingFP |
private long |
posTermStartFP |
private long |
seekTo |
private Lucene50ScoreSkipReader |
skipper |
private int |
startOffset |
private long |
totalTermFreq |
ALL, FREQS, NONE, OFFSETS, PAYLOADS, POSITIONS
NO_MORE_DOCS
Constructor and Description |
---|
BlockImpactsEverythingEnum(FieldInfo fieldInfo,
Lucene50PostingsFormat.IntBlockTermState termState,
int flags) |
Modifier and Type | Method and Description |
---|---|
int |
advance(int target)
Advances to the first beyond the current whose document number is greater
than or equal to target, and returns the document number itself.
|
void |
advanceShallow(int target)
Shallow-advance to
target . |
long |
cost()
Returns the estimated cost of this
DocIdSetIterator . |
int |
docID()
Returns the following:
-1 if DocIdSetIterator.nextDoc() or
DocIdSetIterator.advance(int) were not called yet. |
int |
endOffset()
Returns end offset for the current position, or -1 if
offsets were not indexed.
|
int |
freq()
Returns term frequency in the current document, or 1 if the field was
indexed with
IndexOptions.DOCS . |
Impacts |
getImpacts()
Get information about upcoming impacts for doc ids that are greater than
or equal to the maximum of
DocIdSetIterator.docID() and the last
target that was passed to ImpactsSource.advanceShallow(int) . |
BytesRef |
getPayload()
Returns the payload at this position, or null if no
payload was indexed.
|
int |
nextDoc()
Advances to the next document in the set and returns the doc it is
currently on, or
DocIdSetIterator.NO_MORE_DOCS if there are no more docs in the
set.NOTE: after the iterator has exhausted you should not call this method, as it may result in unpredicted behavior. |
int |
nextPosition()
Returns the next position, or -1 if positions were not indexed.
|
private void |
refillDocs() |
private void |
refillPositions() |
private void |
skipPositions() |
int |
startOffset()
Returns start offset for the current position, or -1
if offsets were not indexed.
|
featureRequested
all, empty, range, slowAdvance
private final byte[] encoded
private final int[] docDeltaBuffer
private final int[] freqBuffer
private final int[] posDeltaBuffer
private final int[] payloadLengthBuffer
private final int[] offsetStartDeltaBuffer
private final int[] offsetLengthBuffer
private byte[] payloadBytes
private int payloadByteUpto
private int payloadLength
private int lastStartOffset
private int startOffset
private int endOffset
private int docBufferUpto
private int posBufferUpto
private final Lucene50ScoreSkipReader skipper
final IndexInput docIn
final IndexInput posIn
final IndexInput payIn
final BytesRef payload
final boolean indexHasFreq
final boolean indexHasPos
final boolean indexHasOffsets
final boolean indexHasPayloads
private int docFreq
private long totalTermFreq
private int docUpto
private int doc
private int accum
private int freq
private int position
private int posPendingCount
private long posPendingFP
private long payPendingFP
private long docTermStartFP
private long posTermStartFP
private long payTermStartFP
private long lastPosBlockFP
private int nextSkipDoc
private final boolean needsPositions
private final boolean needsOffsets
private final boolean needsPayloads
private long seekTo
public BlockImpactsEverythingEnum(FieldInfo fieldInfo, Lucene50PostingsFormat.IntBlockTermState termState, int flags) throws java.io.IOException
java.io.IOException
public int freq() throws java.io.IOException
PostingsEnum
IndexOptions.DOCS
. Do not call this before
DocIdSetIterator.nextDoc()
is first called, nor after DocIdSetIterator.nextDoc()
returns
DocIdSetIterator.NO_MORE_DOCS
.
NOTE: if the PostingsEnum
was obtain with PostingsEnum.NONE
,
the result of this method is undefined.
freq
in class PostingsEnum
java.io.IOException
public int docID()
DocIdSetIterator
-1
if DocIdSetIterator.nextDoc()
or
DocIdSetIterator.advance(int)
were not called yet.
DocIdSetIterator.NO_MORE_DOCS
if the iterator has exhausted.
docID
in class DocIdSetIterator
private void refillDocs() throws java.io.IOException
java.io.IOException
private void refillPositions() throws java.io.IOException
java.io.IOException
public void advanceShallow(int target) throws java.io.IOException
ImpactsSource
target
. This is cheaper than calling
DocIdSetIterator.advance(int)
and allows further calls to
ImpactsSource.getImpacts()
to ignore doc IDs that are less than target
in order to get more precise information about impacts.
This method may not be called on targets that are less than the current
DocIdSetIterator.docID()
.
After this method has been called, DocIdSetIterator.nextDoc()
may
not be called if the current doc ID is less than target - 1
and
DocIdSetIterator.advance(int)
may not be called on targets that
are less than target
.java.io.IOException
public Impacts getImpacts() throws java.io.IOException
ImpactsSource
DocIdSetIterator.docID()
and the last
target that was passed to ImpactsSource.advanceShallow(int)
.
This method may not be called on an unpositioned iterator on which
ImpactsSource.advanceShallow(int)
has never been called.
NOTE: advancing this iterator may invalidate the returned impacts, so they
should not be used after the iterator has been advanced.java.io.IOException
public int nextDoc() throws java.io.IOException
DocIdSetIterator
DocIdSetIterator.NO_MORE_DOCS
if there are no more docs in the
set.nextDoc
in class DocIdSetIterator
java.io.IOException
public int advance(int target) throws java.io.IOException
DocIdSetIterator
DocIdSetIterator.NO_MORE_DOCS
if target
is greater than the highest document number in the set.
The behavior of this method is undefined when called with
target ≤ current
, or after the iterator has exhausted.
Both cases may result in unpredicted behavior.
When target > current
it behaves as if written:
int advance(int target) { int doc; while ((doc = nextDoc()) < target) { } return doc; }Some implementations are considerably more efficient than that.
NOTE: this method may be called with DocIdSetIterator.NO_MORE_DOCS
for
efficiency by some Scorers. If your implementation cannot efficiently
determine that it should exhaust, it is recommended that you check for that
value in each call to this method.
advance
in class DocIdSetIterator
java.io.IOException
private void skipPositions() throws java.io.IOException
java.io.IOException
public int nextPosition() throws java.io.IOException
PostingsEnum
PostingsEnum.freq()
times is undefined.nextPosition
in class PostingsEnum
java.io.IOException
public int startOffset()
PostingsEnum
startOffset
in class PostingsEnum
public int endOffset()
PostingsEnum
endOffset
in class PostingsEnum
public BytesRef getPayload()
PostingsEnum
getPayload
in class PostingsEnum
public long cost()
DocIdSetIterator
DocIdSetIterator
.
This is generally an upper bound of the number of documents this iterator might match, but may be a rough heuristic, hardcoded value, or otherwise completely inaccurate.
cost
in class DocIdSetIterator