public class SpanWeight extends Weight
| Modifier and Type | Field and Description |
|---|---|
protected float |
idf |
protected SpanQuery |
query |
protected float |
queryNorm |
protected float |
queryWeight |
protected Similarity |
similarity |
protected Set<Term> |
terms |
protected float |
value |
| Constructor and Description |
|---|
SpanWeight(SpanQuery query,
Searcher searcher) |
| Modifier and Type | Method and Description |
|---|---|
Explanation |
explain(IndexReader reader,
int doc)
An explanation of the score computation for the named document.
|
Query |
getQuery()
The query that this concerns.
|
float |
getValue()
The weight for this query.
|
void |
normalize(float queryNorm)
Assigns the query normalization factor to this.
|
Scorer |
scorer(IndexReader reader,
boolean scoreDocsInOrder,
boolean topScorer)
Returns a
Scorer which scores documents in/out-of order according
to scoreDocsInOrder. |
float |
sumOfSquaredWeights()
The sum of squared weights of contained query clauses.
|
scoresDocsOutOfOrderprotected Similarity similarity
protected float value
protected float idf
protected float queryNorm
protected float queryWeight
protected SpanQuery query
public SpanWeight(SpanQuery query, Searcher searcher) throws IOException
IOExceptionpublic Query getQuery()
Weightpublic float getValue()
Weightpublic float sumOfSquaredWeights()
throws IOException
WeightsumOfSquaredWeights in class WeightIOExceptionpublic void normalize(float queryNorm)
Weightpublic Scorer scorer(IndexReader reader, boolean scoreDocsInOrder, boolean topScorer) throws IOException
WeightScorer which scores documents in/out-of order according
to scoreDocsInOrder.
NOTE: even if scoreDocsInOrder is false, it is
recommended to check whether the returned Scorer indeed scores
documents out of order (i.e., call Weight.scoresDocsOutOfOrder()), as
some Scorer implementations will always return documents
in-order.
NOTE: null can be returned if no documents will be scored by this
query.
scorer in class Weightreader - the IndexReader for which to return the Scorer.scoreDocsInOrder - specifies whether in-order scoring of documents is required. Note
that if set to false (i.e., out-of-order scoring is required),
this method can return whatever scoring mode it supports, as every
in-order scorer is also an out-of-order one. However, an
out-of-order scorer may not support DocIdSetIterator.nextDoc()
and/or DocIdSetIterator.advance(int), therefore it is recommended to
request an in-order scorer if use of these methods is required.topScorer - if true, Scorer.score(Collector) will be called; if false,
DocIdSetIterator.nextDoc() and/or DocIdSetIterator.advance(int) will
be called.Scorer which scores documents in/out-of order.IOExceptionpublic Explanation explain(IndexReader reader, int doc) throws IOException
Weightexplain in class Weightreader - sub-reader containing the give docIOException