public final class SpanBoostQuery extends SpanQuery
BoostQuery
for spans.Modifier and Type | Field and Description |
---|---|
private float |
boost |
private SpanQuery |
query |
Constructor and Description |
---|
SpanBoostQuery(SpanQuery query,
float boost)
Sole constructor: wrap
query in such a way that the produced
scores will be boosted by boost . |
Modifier and Type | Method and Description |
---|---|
SpanWeight |
createWeight(IndexSearcher searcher,
ScoreMode scoreMode,
float boost)
Expert: Constructs an appropriate Weight implementation for this query.
|
boolean |
equals(java.lang.Object other)
Override and implement query instance equivalence properly in a subclass.
|
private boolean |
equalsTo(SpanBoostQuery other) |
float |
getBoost()
Return the applied boost.
|
java.lang.String |
getField()
Returns the name of the field matched by this query.
|
SpanQuery |
getQuery()
Return the wrapped
SpanQuery . |
int |
hashCode()
Override and implement query hash code properly in a subclass.
|
Query |
rewrite(IndexReader reader)
Expert: called to re-write queries into primitive queries.
|
java.lang.String |
toString(java.lang.String field)
Prints a query to a string, with
field assumed to be the
default field and omitted. |
void |
visit(QueryVisitor visitor)
Recurse through the query tree, visiting any child queries
|
getTermStates, getTermStates
classHash, sameClassAs, toString
private final SpanQuery query
private final float boost
public SpanBoostQuery(SpanQuery query, float boost)
query
in such a way that the produced
scores will be boosted by boost
.public float getBoost()
public boolean equals(java.lang.Object other)
Query
QueryCache
works properly.
Typically a query will be equal to another only if it's an instance of
the same class and its document-filtering properties are identical that other
instance. Utility methods are provided for certain repetitive code.equals
in class Query
Query.sameClassAs(Object)
,
Query.classHash()
private boolean equalsTo(SpanBoostQuery other)
public int hashCode()
Query
QueryCache
works properly.hashCode
in class Query
Query.equals(Object)
public Query rewrite(IndexReader reader) throws java.io.IOException
Query
public void visit(QueryVisitor visitor)
Query
public java.lang.String toString(java.lang.String field)
Query
field
assumed to be the
default field and omitted.public java.lang.String getField()
SpanQuery
public SpanWeight createWeight(IndexSearcher searcher, ScoreMode scoreMode, float boost) throws java.io.IOException
Query
Only implemented by primitive queries, which re-write to themselves.
createWeight
in class SpanQuery
scoreMode
- How the produced scorers will be consumed.boost
- The boost that is propagated by the parent queries.java.io.IOException