public class CustomScoreQuery extends Query implements Cloneable
FunctionQuery
(or queries).getCustomScoreProvider(org.apache.lucene.index.LeafReaderContext)
.Constructor and Description |
---|
CustomScoreQuery(Query subQuery)
Create a CustomScoreQuery over input subQuery.
|
CustomScoreQuery(Query subQuery,
FunctionQuery... scoringQueries)
Create a CustomScoreQuery over input subQuery and a
FunctionQuery . |
CustomScoreQuery(Query subQuery,
FunctionQuery scoringQuery)
Create a CustomScoreQuery over input subQuery and a
FunctionQuery . |
Modifier and Type | Method and Description |
---|---|
CustomScoreQuery |
clone() |
Weight |
createWeight(IndexSearcher searcher,
boolean needsScores,
float boost) |
boolean |
equals(Object other)
Returns true if
o is equal to this. |
protected CustomScoreProvider |
getCustomScoreProvider(LeafReaderContext context)
Returns a
CustomScoreProvider that calculates the custom scores
for the given IndexReader . |
Query[] |
getScoringQueries()
The scoring queries that only affect the score of CustomScoreQuery.
|
Query |
getSubQuery()
The sub-query that CustomScoreQuery wraps, affecting both the score and which documents match.
|
int |
hashCode()
Returns a hash code value for this object.
|
String |
name()
A short name of this query, used in
toString(String) . |
Query |
rewrite(IndexReader reader) |
String |
toString(String field) |
classHash, sameClassAs, toString
public CustomScoreQuery(Query subQuery)
subQuery
- the sub query whose scored is being customized. Must not be null.public CustomScoreQuery(Query subQuery, FunctionQuery scoringQuery)
FunctionQuery
.subQuery
- the sub query whose score is being customized. Must not be null.scoringQuery
- a value source query whose scores are used in the custom score
computation. This parameter is optional - it can be null.public CustomScoreQuery(Query subQuery, FunctionQuery... scoringQueries)
FunctionQuery
.subQuery
- the sub query whose score is being customized. Must not be null.scoringQueries
- value source queries whose scores are used in the custom score
computation. This parameter is optional - it can be null or even an empty array.public Query rewrite(IndexReader reader) throws IOException
rewrite
in class Query
IOException
public CustomScoreQuery clone()
public boolean equals(Object other)
o
is equal to this.public int hashCode()
protected CustomScoreProvider getCustomScoreProvider(LeafReaderContext context) throws IOException
CustomScoreProvider
that calculates the custom scores
for the given IndexReader
. The default implementation returns a default
implementation as specified in the docs of CustomScoreProvider
.IOException
public Weight createWeight(IndexSearcher searcher, boolean needsScores, float boost) throws IOException
createWeight
in class Query
IOException
public Query getSubQuery()
public Query[] getScoringQueries()
public String name()
toString(String)
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