Package org.apache.lucene.search

Class MultiRangeQuery

java.lang.Object

org.apache.lucene.search.Query

org.apache.lucene.search.MultiRangeQuery

public abstract class MultiRangeQuery
extends Query

Abstract class for range queries involving multiple ranges against physical points such as IntPoints All ranges are logically ORed together TODO: Add capability for handling overlapping ranges at rewrite time

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	MultiRangeQuery.Builder	A builder for multirange queries.
static class	MultiRangeQuery.RangeClause	Representation of a single clause in a MultiRangeQuery

Field Summary

Fields

Modifier and Type	Field	Description
(package private) final int	bytesPerDim
(package private) final String	field
(package private) final int	numDims
(package private) final List<MultiRangeQuery.RangeClause>	rangeClauses

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	MultiRangeQuery(String field, int numDims, int bytesPerDim, List<MultiRangeQuery.RangeClause> rangeClauses)	Expert: create a multidimensional range query with multiple connected ranges

Method Summary

Modifier and Type	Method	Description
final Weight	createWeight(IndexSearcher searcher, ScoreMode scoreMode, float boost)	Expert: Constructs an appropriate Weight implementation for this query.
final boolean	equals(Object o)	Override and implement query instance equivalence properly in a subclass.
private boolean	equalsTo(MultiRangeQuery other)
int	getBytesPerDim()
String	getField()
int	getNumDims()
final int	hashCode()	Override and implement query hash code properly in a subclass.
protected abstract String	toString(int dimension, byte[] value)	Returns a string of a single value in a human-readable format for debugging.
final 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.search.Query

classHash, rewrite, sameClassAs, toString

Methods inherited from class java.lang.Object

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

Field Details

field

final String field

numDims

final int numDims

bytesPerDim

final int bytesPerDim

rangeClauses

final List<MultiRangeQuery.RangeClause> rangeClauses

Constructor Details

MultiRangeQuery

protected MultiRangeQuery(String field,
 int numDims,
 int bytesPerDim,
 List<MultiRangeQuery.RangeClause> rangeClauses)

Expert: create a multidimensional range query with multiple connected ranges

Parameters:

field - field name. must not be null.

numDims - number of dimensions.

rangeClauses - Range Clauses for this query

Method Details

visit

public void visit(QueryVisitor visitor)

Description copied from class: Query

Recurse through the query tree, visiting any child queries

Overrides:

visit in class Query

Parameters:

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

createWeight

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

Description copied from class: Query

Expert: Constructs an appropriate Weight implementation for this query.

Only implemented by primitive queries, which re-write to themselves.

Overrides:

createWeight in class Query

Parameters:

scoreMode - How the produced scorers will be consumed.

boost - The boost that is propagated by the parent queries.

Throws:

IOException

getField

public String getField()

getNumDims

public int getNumDims()

getBytesPerDim

public int getBytesPerDim()

hashCode

public final 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.

Specified by:

hashCode in class Query

See Also:

• Query.equals(Object)

equals

public final boolean equals(Object o)

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.

Specified by:

equals in class Query

See Also:

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

equalsTo

private boolean equalsTo(MultiRangeQuery other)

toString

public final 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

toString

protected abstract String toString(int dimension,
 byte[] value)

Returns a string of a single value in a human-readable format for debugging. This is used by Query.toString().

Parameters:

dimension - dimension of the particular value

value - single value, never null

Returns:

human readable value for debugging