private class PhraseQuery.PhraseWeight extends Weight
Weight.DefaultBulkScorer
Modifier and Type | Field and Description |
---|---|
private boolean |
needsScores |
private Similarity |
similarity |
private TermContext[] |
states |
private Similarity.SimWeight |
stats |
parentQuery
Constructor and Description |
---|
PhraseWeight(IndexSearcher searcher,
boolean needsScores) |
Modifier and Type | Method and Description |
---|---|
Explanation |
explain(LeafReaderContext context,
int doc)
An explanation of the score computation for the named document.
|
void |
extractTerms(java.util.Set<Term> queryTerms)
Expert: adds all terms occurring in this query to the terms set.
|
float |
getValueForNormalization()
The value for normalization of contained query clauses (e.g.
|
void |
normalize(float queryNorm,
float boost)
Assigns the query normalization factor and boost to this.
|
Scorer |
scorer(LeafReaderContext context)
Returns a
Scorer which can iterate in order over all matching
documents and assign them a score. |
private boolean |
termNotInReader(LeafReader reader,
Term term) |
java.lang.String |
toString() |
bulkScorer, getQuery
private final Similarity similarity
private final Similarity.SimWeight stats
private final boolean needsScores
private transient TermContext[] states
public PhraseWeight(IndexSearcher searcher, boolean needsScores) throws java.io.IOException
java.io.IOException
public void extractTerms(java.util.Set<Term> queryTerms)
Weight
Weight
was created with needsScores == true
then this
method will only extract terms which are used for scoring, otherwise it
will extract all terms which are used for matching.extractTerms
in class Weight
public java.lang.String toString()
toString
in class java.lang.Object
public float getValueForNormalization()
Weight
getValueForNormalization
in class Weight
public void normalize(float queryNorm, float boost)
Weight
public Scorer scorer(LeafReaderContext context) throws java.io.IOException
Weight
Scorer
which can iterate in order over all matching
documents and assign them a score.
NOTE: null can be returned if no documents will be scored by this query.
NOTE: The returned Scorer
does not have
LeafReader.getLiveDocs()
applied, they need to be checked on top.
scorer
in class Weight
context
- the LeafReaderContext
for which to return the Scorer
.Scorer
which scores documents in/out-of order.java.io.IOException
- if there is a low-level I/O errorprivate boolean termNotInReader(LeafReader reader, Term term) throws java.io.IOException
java.io.IOException
public Explanation explain(LeafReaderContext context, int doc) throws java.io.IOException
Weight
explain
in class Weight
context
- the readers context to create the Explanation
for.doc
- the document's id relative to the given context's readerjava.io.IOException
- if an IOException
occurs