Module org.apache.lucene.core

Package org.apache.lucene.document

Class DoubleRangeSlowRangeQuery

java.lang.Object

org.apache.lucene.search.Query

org.apache.lucene.document.BinaryRangeFieldRangeQuery

org.apache.lucene.document.DoubleRangeSlowRangeQuery

class DoubleRangeSlowRangeQuery
extends BinaryRangeFieldRangeQuery

Field Summary

Fields

Modifier and Type	Field	Description
private final String	field
private final double[]	max
private final double[]	min

Constructor Summary

Constructors

Constructor	Description
DoubleRangeSlowRangeQuery(String field, double[] min, double[] max, RangeFieldQuery.QueryType queryType)

Method Summary

Modifier and Type	Method	Description
private static byte[]	encodeRanges(double[] min, double[] max)
boolean	equals(Object obj)	Override and implement query instance equivalence properly in a subclass.
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.
String	toString(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

Methods inherited from class org.apache.lucene.document.BinaryRangeFieldRangeQuery

createWeight

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

classHash, sameClassAs, toString

Methods inherited from class java.lang.Object

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

Field Details

field

private final String field

min

private final double[] min

max

private final double[] max

Constructor Details

DoubleRangeSlowRangeQuery

DoubleRangeSlowRangeQuery(String field,
 double[] min,
 double[] max,
 RangeFieldQuery.QueryType queryType)

Method Details

equals

public boolean equals(Object obj)

Description copied from class: Query

Override and implement query instance equivalence properly in a subclass. This is required so that 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.

Overrides:

equals in class BinaryRangeFieldRangeQuery

See Also:

• Query.sameClassAs(Object)
• Query.classHash()

hashCode

public int hashCode()

Description copied from class: Query

Override and implement query hash code properly in a subclass. This is required so that QueryCache works properly.

Overrides:

hashCode in class BinaryRangeFieldRangeQuery

See Also:

• Query.equals(Object)

visit

public void visit(QueryVisitor visitor)

Description copied from class: Query

Recurse through the query tree, visiting any child queries

Overrides:

visit in class BinaryRangeFieldRangeQuery

Parameters:

visitor - a QueryVisitor to be called by each query in the tree

toString

public String toString(String field)

Description copied from class: Query

Prints a query to a string, with field assumed to be the default field and omitted.

Specified by:

toString in class Query

rewrite

public Query rewrite(IndexReader reader)
              throws IOException

Description copied from class: Query

Expert: called to re-write queries into primitive queries. For example, a PrefixQuery will be rewritten into a BooleanQuery that consists of TermQuerys.

Callers are expected to call rewrite multiple times if necessary, until the rewritten query is the same as the original query.

Overrides:

rewrite in class BinaryRangeFieldRangeQuery

Throws:

IOException

See Also:

• IndexSearcher.rewrite(Query)

encodeRanges

private static byte[] encodeRanges(double[] min,
 double[] max)