Package org.apache.lucene.queries.function

Class FunctionRangeQuery

java.lang.Object

org.apache.lucene.search.Query

org.apache.lucene.queries.function.FunctionRangeQuery

public class FunctionRangeQuery
extends Query

A Query wrapping a ValueSource that matches docs in which the values in the value source match a configured range. The score is the float value. This can be a slow query if run by itself since it must visit all docs; ideally it's combined with other queries. It's mostly a wrapper around FunctionValues.getRangeScorer(Weight, LeafReaderContext, String, String, boolean, boolean).

A similar class is org.apache.lucene.search.DocValuesRangeQuery in the sandbox module. That one is constant scoring.

See Also:

• (constant scoring)

WARNING: This API is experimental and might change in incompatible ways in the next release.

Constructor Summary

Constructors

Constructor	Description
FunctionRangeQuery(ValueSource valueSource, Number lowerVal, Number upperVal, boolean includeLower, boolean includeUpper)
FunctionRangeQuery(ValueSource valueSource, String lowerVal, String upperVal, boolean includeLower, boolean includeUpper)

Method Summary

Modifier and Type	Method	Description
Weight	createWeight(IndexSearcher searcher, ScoreMode scoreMode, float boost)
boolean	equals(Object other)
String	getLowerVal()
String	getUpperVal()
ValueSource	getValueSource()
int	hashCode()
boolean	isIncludeLower()
boolean	isIncludeUpper()
String	toString(String field)
void	visit(QueryVisitor visitor)

Methods inherited from class org.apache.lucene.search.Query

classHash, rewrite, rewrite, sameClassAs, toString

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Constructor Details

FunctionRangeQuery

public FunctionRangeQuery(ValueSource valueSource,
 Number lowerVal,
 Number upperVal,
 boolean includeLower,
 boolean includeUpper)

FunctionRangeQuery

public FunctionRangeQuery(ValueSource valueSource,
 String lowerVal,
 String upperVal,
 boolean includeLower,
 boolean includeUpper)

Method Details

getValueSource

public ValueSource getValueSource()

getLowerVal

public String getLowerVal()

getUpperVal

public String getUpperVal()

isIncludeLower

public boolean isIncludeLower()

isIncludeUpper

public boolean isIncludeUpper()

toString

public String toString(String field)

Specified by:

toString in class Query

equals

public boolean equals(Object other)

Specified by:

equals in class Query

hashCode

public int hashCode()

Specified by:

hashCode in class Query

visit

public void visit(QueryVisitor visitor)

Specified by:

visit in class Query

createWeight

public Weight createWeight(IndexSearcher searcher,
 ScoreMode scoreMode,
 float boost)
                    throws IOException

Overrides:

createWeight in class Query

Throws:

IOException