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.NOTE: after the iterator has exhausted you should not call this method, as it may result in unpredicted behavior. |
float |
score()
Returns the score of the current document matching the query.
|
protected boolean |
setFreqCurrentDoc() |
getSimilarity, score, score, visitScorers, visitSubScorersprotected 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
IOExceptionpublic int nextDoc()
throws IOException
DocIdSetIteratorDocIdSetIterator.NO_MORE_DOCS if there are no more docs in the
set.nextDoc in class DocIdSetIteratorIOExceptionpublic int advance(int target)
throws IOException
DocIdSetIteratorDocIdSetIterator.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 DocIdSetIteratorIOExceptionprotected boolean setFreqCurrentDoc()
throws IOException
IOExceptionpublic int docID()
DocIdSetIteratorDocIdSetIterator.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 DocIdSetIteratorpublic float score()
throws IOException
ScorerDocIdSetIterator.nextDoc() or DocIdSetIterator.advance(int)
is called the first time, or when called from within
Collector.collect(int).score in class ScorerIOExceptionpublic float freq()
throws IOException
Scorerfreq in class ScorerIOExceptionprotected Explanation explain(int doc) throws IOException
Scorer,
but it is needed by SpanWeight to build an explanation.IOException