public class SpanScorer extends Scorer
Modifier and Type | Field and Description |
---|---|
protected int |
doc |
protected float |
freq |
protected boolean |
more |
protected byte[] |
norms |
protected Spans |
spans |
protected float |
value |
NO_MORE_DOCS
Modifier | Constructor and Description |
---|---|
protected |
SpanScorer(Spans spans,
Weight weight,
Similarity similarity,
byte[] norms) |
Modifier and Type | Method and Description |
---|---|
int |
advance(int target)
Advances to the first beyond (see NOTE below) the current whose document
number is greater than or equal to target.
|
int |
docID()
Returns the following:
-1 or
DocIdSetIterator.NO_MORE_DOCS if DocIdSetIterator.nextDoc() or
DocIdSetIterator.advance(int) were not called yet. |
protected Explanation |
explain(int doc)
This method is no longer an official member of
Scorer ,
but it is needed by SpanWeight to build an explanation. |
float |
freq()
Returns number of matches for the current document.
|
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. |
float |
score()
Returns the score of the current document matching the query.
|
protected boolean |
setFreqCurrentDoc() |
getSimilarity, score, score, visitScorers, visitSubScorers
protected Spans spans
protected byte[] norms
protected float value
protected boolean more
protected int doc
protected float freq
protected SpanScorer(Spans spans, Weight weight, Similarity similarity, byte[] norms) throws IOException
IOException
public int nextDoc() throws IOException
DocIdSetIterator
DocIdSetIterator.NO_MORE_DOCS
if there are no more docs in the
set.nextDoc
in class DocIdSetIterator
IOException
public int advance(int target) throws IOException
DocIdSetIterator
DocIdSetIterator.NO_MORE_DOCS
if there are no more docs in the
set.
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: when target ≤ current
implementations may opt
not to advance beyond their current DocIdSetIterator.docID()
.
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.
NOTE: after the iterator has exhausted you should not call this method, as it may result in unpredicted behavior.
advance
in class DocIdSetIterator
IOException
protected boolean setFreqCurrentDoc() throws IOException
IOException
public int docID()
DocIdSetIterator
DocIdSetIterator.NO_MORE_DOCS
if DocIdSetIterator.nextDoc()
or
DocIdSetIterator.advance(int)
were not called yet.
DocIdSetIterator.NO_MORE_DOCS
if the iterator has exhausted.
docID
in class DocIdSetIterator
public float score() throws IOException
Scorer
DocIdSetIterator.nextDoc()
or DocIdSetIterator.advance(int)
is called the first time, or when called from within
Collector.collect(int)
.score
in class Scorer
IOException
public float freq() throws IOException
Scorer
freq
in class Scorer
IOException
protected Explanation explain(int doc) throws IOException
Scorer
,
but it is needed by SpanWeight to build an explanation.IOException