public final class FieldValueQuery extends Query
Query
that matches documents that have a value for a given field
as reported by LeafReader.getDocsWithField(String)
.Constructor and Description |
---|
FieldValueQuery(String field)
Create a query that will match that have a value for the given
field . |
Modifier and Type | Method and Description |
---|---|
Weight |
createWeight(IndexSearcher searcher,
boolean needsScores)
Expert: Constructs an appropriate Weight implementation for this query.
|
boolean |
equals(Object obj) |
String |
getField() |
int |
hashCode() |
String |
toString(String field)
Prints a query to a string, with
field assumed to be the
default field and omitted. |
public FieldValueQuery(String field)
field
.public String getField()
public String toString(String field)
Query
field
assumed to be the
default field and omitted.public Weight createWeight(IndexSearcher searcher, boolean needsScores) throws IOException
Query
Only implemented by primitive queries, which re-write to themselves.
createWeight
in class Query
needsScores
- True if document scores (Scorer.score()
) or match
frequencies (Scorer.freq()
) are needed.IOException
Copyright © 2000-2016 Apache Software Foundation. All Rights Reserved.