final class MultiTermQueryConstantScoreWrapper<Q extends MultiTermQuery> extends Query
MultiTermQuery.CONSTANT_SCORE_REWRITE
.
It tries to rewrite per-segment as a boolean query
that returns a constant score and otherwise fills a
bit set with matches and builds a Scorer on top of
this bit set.Modifier and Type | Class and Description |
---|---|
private static class |
MultiTermQueryConstantScoreWrapper.TermAndState |
private static class |
MultiTermQueryConstantScoreWrapper.WeightOrDocIdSet |
Modifier and Type | Field and Description |
---|---|
private static int |
BOOLEAN_REWRITE_TERM_COUNT_THRESHOLD |
protected Q |
query |
Modifier | Constructor and Description |
---|---|
protected |
MultiTermQueryConstantScoreWrapper(Q query)
Wrap a
MultiTermQuery as a Filter. |
Modifier and Type | Method and Description |
---|---|
Weight |
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.
|
java.lang.String |
getField()
Returns the field name for this query
|
Q |
getQuery()
Returns the encapsulated query
|
int |
hashCode()
Override and implement query hash code properly in a subclass.
|
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
|
classHash, rewrite, sameClassAs, toString
private static final int BOOLEAN_REWRITE_TERM_COUNT_THRESHOLD
protected final Q extends MultiTermQuery query
protected MultiTermQueryConstantScoreWrapper(Q query)
MultiTermQuery
as a Filter.public java.lang.String toString(java.lang.String field)
Query
field
assumed to be the
default field and omitted.public final 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()
public final int hashCode()
Query
QueryCache
works properly.hashCode
in class Query
Query.equals(Object)
public Q getQuery()
public final java.lang.String getField()
public Weight 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 Query
scoreMode
- How the produced scorers will be consumed.boost
- The boost that is propagated by the parent queries.java.io.IOException
public void visit(QueryVisitor visitor)
Query